./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 AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:00:25,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:00:25,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:00:25,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:00:25,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:00:26,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:00:26,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:00:26,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:00:26,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:00:26,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:00:26,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:00:26,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:00:26,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:00:26,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:00:26,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:00:26,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:00:26,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:00:26,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:00:26,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:00:26,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:00:26,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:00:26,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:00:26,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:00:26,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:00:26,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:00:26,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:00:26,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:00:26,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:00:26,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:00:26,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:00:26,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:00:26,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:00:26,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:00:26,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:00:26,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:00:26,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:00:26,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:00:26,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:00:26,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:00:26,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:00:26,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:00:26,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:00:26,082 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:00:26,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:00:26,083 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:00:26,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:00:26,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:00:26,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:00:26,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:00:26,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:00:26,085 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:00:26,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:00:26,085 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:00:26,086 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:00:26,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:00:26,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:00:26,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:00:26,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:00:26,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:00:26,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:00:26,086 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:00:26,087 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:00:26,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:00:26,087 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:00:26,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:00:26,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:00:26,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:00:26,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:00:26,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:00:26,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:00:26,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:00:26,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:00:26,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:00:26,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:00:26,089 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:00:26,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:00:26,089 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:00:26,089 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:00:26,089 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:00:26,089 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:00:26,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:00:26,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:00:26,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:00:26,403 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:00:26,404 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:00:26,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_02-funloop_norace.i [2023-08-29 02:00:27,457 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:00:27,687 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:00:27,687 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_02-funloop_norace.i [2023-08-29 02:00:27,721 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b638202dd/cbddb5b183da406baddc164d9b2bf7a2/FLAG49efbd0c8 [2023-08-29 02:00:27,731 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b638202dd/cbddb5b183da406baddc164d9b2bf7a2 [2023-08-29 02:00:27,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:00:27,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:00:27,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:00:27,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:00:27,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:00:27,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:00:27" (1/1) ... [2023-08-29 02:00:27,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee04cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:27, skipping insertion in model container [2023-08-29 02:00:27,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:00:27" (1/1) ... [2023-08-29 02:00:27,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:00:27,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:00:28,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:00:28,027 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:00:28,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:00:28,120 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:00:28,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28 WrapperNode [2023-08-29 02:00:28,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:00:28,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:00:28,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:00:28,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:00:28,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28" (1/1) ... [2023-08-29 02:00:28,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28" (1/1) ... [2023-08-29 02:00:28,171 INFO L138 Inliner]: procedures = 262, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2023-08-29 02:00:28,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:00:28,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:00:28,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:00:28,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:00:28,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28" (1/1) ... [2023-08-29 02:00:28,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28" (1/1) ... [2023-08-29 02:00:28,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28" (1/1) ... [2023-08-29 02:00:28,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28" (1/1) ... [2023-08-29 02:00:28,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28" (1/1) ... [2023-08-29 02:00:28,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28" (1/1) ... [2023-08-29 02:00:28,195 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28" (1/1) ... [2023-08-29 02:00:28,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28" (1/1) ... [2023-08-29 02:00:28,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:00:28,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:00:28,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:00:28,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:00:28,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28" (1/1) ... [2023-08-29 02:00:28,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:00:28,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:28,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 02:00:28,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 02:00:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:00:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:00:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:00:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:00:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:00:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:00:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:00:28,243 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:00:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:00:28,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:00:28,244 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:00:28,370 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:00:28,371 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:00:28,548 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:00:28,552 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:00:28,554 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-29 02:00:28,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:00:28 BoogieIcfgContainer [2023-08-29 02:00:28,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:00:28,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:00:28,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:00:28,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:00:28,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:00:27" (1/3) ... [2023-08-29 02:00:28,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46141c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:00:28, skipping insertion in model container [2023-08-29 02:00:28,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:28" (2/3) ... [2023-08-29 02:00:28,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46141c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:00:28, skipping insertion in model container [2023-08-29 02:00:28,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:00:28" (3/3) ... [2023-08-29 02:00:28,562 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2023-08-29 02:00:28,567 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:00:28,573 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:00:28,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-29 02:00:28,573 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:00:28,631 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:00:28,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 100 transitions, 205 flow [2023-08-29 02:00:28,730 INFO L130 PetriNetUnfolder]: 6/99 cut-off events. [2023-08-29 02:00:28,732 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:28,736 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. [2023-08-29 02:00:28,736 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 100 transitions, 205 flow [2023-08-29 02:00:28,741 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 99 transitions, 201 flow [2023-08-29 02:00:28,745 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:00:28,757 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 99 transitions, 201 flow [2023-08-29 02:00:28,759 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 99 transitions, 201 flow [2023-08-29 02:00:28,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 99 transitions, 201 flow [2023-08-29 02:00:28,783 INFO L130 PetriNetUnfolder]: 6/99 cut-off events. [2023-08-29 02:00:28,783 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:28,784 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. [2023-08-29 02:00:28,785 INFO L119 LiptonReduction]: Number of co-enabled transitions 2960 [2023-08-29 02:00:29,888 INFO L134 LiptonReduction]: Checked pairs total: 7860 [2023-08-29 02:00:29,888 INFO L136 LiptonReduction]: Total number of compositions: 62 [2023-08-29 02:00:29,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:00:29,911 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;@6287ac26, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:00:29,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-29 02:00:29,919 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2023-08-29 02:00:29,919 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:29,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:29,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:29,920 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)] === [2023-08-29 02:00:29,924 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:29,924 INFO L85 PathProgramCache]: Analyzing trace with hash 169409446, now seen corresponding path program 1 times [2023-08-29 02:00:29,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:29,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789072821] [2023-08-29 02:00:29,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:29,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:30,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:30,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:30,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789072821] [2023-08-29 02:00:30,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789072821] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:30,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:30,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:00:30,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018734566] [2023-08-29 02:00:30,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:30,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:00:30,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:30,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:00:30,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:00:30,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 162 [2023-08-29 02:00:30,168 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) [2023-08-29 02:00:30,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:30,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 162 [2023-08-29 02:00:30,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:30,213 INFO L130 PetriNetUnfolder]: 66/249 cut-off events. [2023-08-29 02:00:30,213 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:30,214 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. [2023-08-29 02:00:30,215 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 19 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2023-08-29 02:00:30,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 41 transitions, 127 flow [2023-08-29 02:00:30,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:00:30,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:00:30,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-08-29 02:00:30,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6131687242798354 [2023-08-29 02:00:30,232 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-08-29 02:00:30,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-08-29 02:00:30,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:30,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-08-29 02:00:30,237 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) [2023-08-29 02:00:30,240 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) [2023-08-29 02:00:30,240 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) [2023-08-29 02:00:30,241 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 83 flow. Second operand 3 states and 298 transitions. [2023-08-29 02:00:30,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 41 transitions, 127 flow [2023-08-29 02:00:30,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 41 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:30,244 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 94 flow [2023-08-29 02:00:30,245 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} [2023-08-29 02:00:30,247 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2023-08-29 02:00:30,247 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 94 flow [2023-08-29 02:00:30,248 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) [2023-08-29 02:00:30,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:30,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:30,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:00:30,248 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)] === [2023-08-29 02:00:30,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:30,249 INFO L85 PathProgramCache]: Analyzing trace with hash 232269373, now seen corresponding path program 1 times [2023-08-29 02:00:30,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:30,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309185587] [2023-08-29 02:00:30,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:30,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:30,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:30,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:30,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309185587] [2023-08-29 02:00:30,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309185587] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:30,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715437954] [2023-08-29 02:00:30,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:30,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:30,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:30,375 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:00:30,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 02:00:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:30,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 02:00:30,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:30,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:30,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:00:30,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:30,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715437954] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:00:30,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:00:30,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 02:00:30,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135633023] [2023-08-29 02:00:30,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:00:30,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 02:00:30,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:30,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 02:00:30,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 02:00:30,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 162 [2023-08-29 02:00:30,549 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) [2023-08-29 02:00:30,549 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:30,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 162 [2023-08-29 02:00:30,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:30,636 INFO L130 PetriNetUnfolder]: 66/252 cut-off events. [2023-08-29 02:00:30,636 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:30,637 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. [2023-08-29 02:00:30,638 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 19 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2023-08-29 02:00:30,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 44 transitions, 154 flow [2023-08-29 02:00:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:30,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 573 transitions. [2023-08-29 02:00:30,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5895061728395061 [2023-08-29 02:00:30,645 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 573 transitions. [2023-08-29 02:00:30,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 573 transitions. [2023-08-29 02:00:30,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:30,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 573 transitions. [2023-08-29 02:00:30,648 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) [2023-08-29 02:00:30,650 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) [2023-08-29 02:00:30,651 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) [2023-08-29 02:00:30,651 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 94 flow. Second operand 6 states and 573 transitions. [2023-08-29 02:00:30,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 44 transitions, 154 flow [2023-08-29 02:00:30,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 150 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:30,652 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 126 flow [2023-08-29 02:00:30,653 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} [2023-08-29 02:00:30,653 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places. [2023-08-29 02:00:30,654 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 126 flow [2023-08-29 02:00:30,656 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) [2023-08-29 02:00:30,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:30,657 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:30,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 02:00:30,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:30,861 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)] === [2023-08-29 02:00:30,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:30,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1780848282, now seen corresponding path program 2 times [2023-08-29 02:00:30,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:30,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757927283] [2023-08-29 02:00:30,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:30,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:30,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:30,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757927283] [2023-08-29 02:00:30,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757927283] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:30,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822668987] [2023-08-29 02:00:30,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:00:30,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:30,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:30,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:00:30,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 02:00:31,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 02:00:31,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:00:31,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 25 conjunts are in the unsatisfiable core [2023-08-29 02:00:31,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:31,153 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 [2023-08-29 02:00:31,185 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 [2023-08-29 02:00:31,223 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 02:00:31,223 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 [2023-08-29 02:00:31,267 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 02:00:31,268 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 [2023-08-29 02:00:31,291 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 02:00:31,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:00:31,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822668987] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:31,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 02:00:31,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 13 [2023-08-29 02:00:31,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401186187] [2023-08-29 02:00:31,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:31,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:00:31,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:31,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:00:31,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-08-29 02:00:31,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 162 [2023-08-29 02:00:31,523 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) [2023-08-29 02:00:31,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:31,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 162 [2023-08-29 02:00:31,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:31,806 INFO L130 PetriNetUnfolder]: 435/956 cut-off events. [2023-08-29 02:00:31,806 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 02:00:31,809 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. [2023-08-29 02:00:31,814 INFO L137 encePairwiseOnDemand]: 146/162 looper letters, 109 selfloop transitions, 27 changer transitions 0/144 dead transitions. [2023-08-29 02:00:31,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 144 transitions, 598 flow [2023-08-29 02:00:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:00:31,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:00:31,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 874 transitions. [2023-08-29 02:00:31,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5395061728395062 [2023-08-29 02:00:31,816 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 874 transitions. [2023-08-29 02:00:31,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 874 transitions. [2023-08-29 02:00:31,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:31,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 874 transitions. [2023-08-29 02:00:31,818 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) [2023-08-29 02:00:31,820 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) [2023-08-29 02:00:31,821 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) [2023-08-29 02:00:31,821 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 126 flow. Second operand 10 states and 874 transitions. [2023-08-29 02:00:31,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 144 transitions, 598 flow [2023-08-29 02:00:31,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 144 transitions, 584 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:31,824 INFO L231 Difference]: Finished difference. Result has 64 places, 69 transitions, 316 flow [2023-08-29 02:00:31,824 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} [2023-08-29 02:00:31,825 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 23 predicate places. [2023-08-29 02:00:31,825 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 69 transitions, 316 flow [2023-08-29 02:00:31,825 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) [2023-08-29 02:00:31,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:31,825 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:31,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-29 02:00:32,030 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 [2023-08-29 02:00:32,030 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)] === [2023-08-29 02:00:32,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:32,031 INFO L85 PathProgramCache]: Analyzing trace with hash 833919780, now seen corresponding path program 1 times [2023-08-29 02:00:32,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:32,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907520719] [2023-08-29 02:00:32,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:32,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:32,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:32,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907520719] [2023-08-29 02:00:32,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907520719] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:32,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254699482] [2023-08-29 02:00:32,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:32,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:32,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:32,100 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) [2023-08-29 02:00:32,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 02:00:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:32,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 02:00:32,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:32,219 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:32,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:00:32,264 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:32,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254699482] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:00:32,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:00:32,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-29 02:00:32,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390407083] [2023-08-29 02:00:32,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:00:32,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 02:00:32,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:32,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 02:00:32,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-29 02:00:32,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 162 [2023-08-29 02:00:32,293 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) [2023-08-29 02:00:32,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:32,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 162 [2023-08-29 02:00:32,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:32,379 INFO L130 PetriNetUnfolder]: 219/716 cut-off events. [2023-08-29 02:00:32,379 INFO L131 PetriNetUnfolder]: For 484/488 co-relation queries the response was YES. [2023-08-29 02:00:32,381 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. [2023-08-29 02:00:32,383 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 27 selfloop transitions, 11 changer transitions 0/75 dead transitions. [2023-08-29 02:00:32,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 75 transitions, 428 flow [2023-08-29 02:00:32,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:00:32,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:00:32,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1128 transitions. [2023-08-29 02:00:32,386 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5802469135802469 [2023-08-29 02:00:32,386 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1128 transitions. [2023-08-29 02:00:32,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1128 transitions. [2023-08-29 02:00:32,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:32,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1128 transitions. [2023-08-29 02:00:32,388 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) [2023-08-29 02:00:32,390 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) [2023-08-29 02:00:32,391 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) [2023-08-29 02:00:32,391 INFO L175 Difference]: Start difference. First operand has 64 places, 69 transitions, 316 flow. Second operand 12 states and 1128 transitions. [2023-08-29 02:00:32,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 75 transitions, 428 flow [2023-08-29 02:00:32,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 75 transitions, 427 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:32,395 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 399 flow [2023-08-29 02:00:32,395 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} [2023-08-29 02:00:32,396 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 39 predicate places. [2023-08-29 02:00:32,396 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 399 flow [2023-08-29 02:00:32,396 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) [2023-08-29 02:00:32,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:32,397 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:32,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-29 02:00:32,601 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 [2023-08-29 02:00:32,602 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)] === [2023-08-29 02:00:32,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:32,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1776131012, now seen corresponding path program 2 times [2023-08-29 02:00:32,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:32,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046276546] [2023-08-29 02:00:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:32,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:32,844 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:32,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:32,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046276546] [2023-08-29 02:00:32,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046276546] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:32,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:32,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:00:32,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831366733] [2023-08-29 02:00:32,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:32,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:32,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:32,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:32,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:00:32,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 162 [2023-08-29 02:00:32,944 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) [2023-08-29 02:00:32,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:32,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 162 [2023-08-29 02:00:32,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:33,153 INFO L130 PetriNetUnfolder]: 563/1325 cut-off events. [2023-08-29 02:00:33,154 INFO L131 PetriNetUnfolder]: For 1334/1348 co-relation queries the response was YES. [2023-08-29 02:00:33,156 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. [2023-08-29 02:00:33,159 INFO L137 encePairwiseOnDemand]: 151/162 looper letters, 98 selfloop transitions, 30 changer transitions 0/141 dead transitions. [2023-08-29 02:00:33,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 141 transitions, 891 flow [2023-08-29 02:00:33,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:33,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:33,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 557 transitions. [2023-08-29 02:00:33,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.573045267489712 [2023-08-29 02:00:33,161 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 557 transitions. [2023-08-29 02:00:33,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 557 transitions. [2023-08-29 02:00:33,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:33,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 557 transitions. [2023-08-29 02:00:33,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:33,164 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) [2023-08-29 02:00:33,164 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) [2023-08-29 02:00:33,164 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 399 flow. Second operand 6 states and 557 transitions. [2023-08-29 02:00:33,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 141 transitions, 891 flow [2023-08-29 02:00:33,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 141 transitions, 843 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-29 02:00:33,170 INFO L231 Difference]: Finished difference. Result has 85 places, 100 transitions, 575 flow [2023-08-29 02:00:33,170 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} [2023-08-29 02:00:33,171 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 44 predicate places. [2023-08-29 02:00:33,171 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 100 transitions, 575 flow [2023-08-29 02:00:33,172 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) [2023-08-29 02:00:33,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:33,172 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:33,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:00:33,172 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)] === [2023-08-29 02:00:33,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:33,173 INFO L85 PathProgramCache]: Analyzing trace with hash -989019556, now seen corresponding path program 1 times [2023-08-29 02:00:33,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:33,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068287526] [2023-08-29 02:00:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:33,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:33,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:33,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068287526] [2023-08-29 02:00:33,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068287526] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:33,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:33,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:00:33,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001732978] [2023-08-29 02:00:33,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:33,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:33,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:33,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:33,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:00:33,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2023-08-29 02:00:33,458 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) [2023-08-29 02:00:33,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:33,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2023-08-29 02:00:33,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:33,724 INFO L130 PetriNetUnfolder]: 889/1879 cut-off events. [2023-08-29 02:00:33,724 INFO L131 PetriNetUnfolder]: For 2601/2615 co-relation queries the response was YES. [2023-08-29 02:00:33,727 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. [2023-08-29 02:00:33,733 INFO L137 encePairwiseOnDemand]: 147/162 looper letters, 125 selfloop transitions, 57 changer transitions 4/191 dead transitions. [2023-08-29 02:00:33,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 191 transitions, 1361 flow [2023-08-29 02:00:33,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:33,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:33,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2023-08-29 02:00:33,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2023-08-29 02:00:33,755 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 540 transitions. [2023-08-29 02:00:33,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 540 transitions. [2023-08-29 02:00:33,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:33,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 540 transitions. [2023-08-29 02:00:33,756 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) [2023-08-29 02:00:33,757 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) [2023-08-29 02:00:33,757 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) [2023-08-29 02:00:33,758 INFO L175 Difference]: Start difference. First operand has 85 places, 100 transitions, 575 flow. Second operand 6 states and 540 transitions. [2023-08-29 02:00:33,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 191 transitions, 1361 flow [2023-08-29 02:00:33,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 191 transitions, 1361 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:00:33,764 INFO L231 Difference]: Finished difference. Result has 95 places, 151 transitions, 1109 flow [2023-08-29 02:00:33,764 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} [2023-08-29 02:00:33,764 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 54 predicate places. [2023-08-29 02:00:33,765 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 151 transitions, 1109 flow [2023-08-29 02:00:33,765 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) [2023-08-29 02:00:33,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:33,765 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:33,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:00:33,765 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)] === [2023-08-29 02:00:33,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:33,766 INFO L85 PathProgramCache]: Analyzing trace with hash -850342576, now seen corresponding path program 1 times [2023-08-29 02:00:33,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:33,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966017739] [2023-08-29 02:00:33,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:33,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:33,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:33,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966017739] [2023-08-29 02:00:33,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966017739] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:33,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:33,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:00:33,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005771420] [2023-08-29 02:00:33,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:33,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:33,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:33,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:34,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:00:34,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2023-08-29 02:00:34,062 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) [2023-08-29 02:00:34,062 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:34,062 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2023-08-29 02:00:34,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:34,422 INFO L130 PetriNetUnfolder]: 1092/2266 cut-off events. [2023-08-29 02:00:34,422 INFO L131 PetriNetUnfolder]: For 5792/5824 co-relation queries the response was YES. [2023-08-29 02:00:34,427 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. [2023-08-29 02:00:34,437 INFO L137 encePairwiseOnDemand]: 147/162 looper letters, 161 selfloop transitions, 72 changer transitions 0/238 dead transitions. [2023-08-29 02:00:34,438 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 238 transitions, 2166 flow [2023-08-29 02:00:34,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:34,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:34,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2023-08-29 02:00:34,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2023-08-29 02:00:34,440 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 540 transitions. [2023-08-29 02:00:34,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 540 transitions. [2023-08-29 02:00:34,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:34,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 540 transitions. [2023-08-29 02:00:34,441 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) [2023-08-29 02:00:34,442 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) [2023-08-29 02:00:34,443 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) [2023-08-29 02:00:34,443 INFO L175 Difference]: Start difference. First operand has 95 places, 151 transitions, 1109 flow. Second operand 6 states and 540 transitions. [2023-08-29 02:00:34,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 238 transitions, 2166 flow [2023-08-29 02:00:34,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 238 transitions, 2066 flow, removed 50 selfloop flow, removed 0 redundant places. [2023-08-29 02:00:34,460 INFO L231 Difference]: Finished difference. Result has 105 places, 205 transitions, 1836 flow [2023-08-29 02:00:34,460 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} [2023-08-29 02:00:34,461 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 64 predicate places. [2023-08-29 02:00:34,461 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 205 transitions, 1836 flow [2023-08-29 02:00:34,462 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) [2023-08-29 02:00:34,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:34,462 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] [2023-08-29 02:00:34,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:00:34,463 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)] === [2023-08-29 02:00:34,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:34,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1274432352, now seen corresponding path program 1 times [2023-08-29 02:00:34,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:34,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759606515] [2023-08-29 02:00:34,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:34,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:34,811 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 02:00:34,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:34,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759606515] [2023-08-29 02:00:34,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759606515] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:34,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431088680] [2023-08-29 02:00:34,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:34,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:34,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:34,813 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) [2023-08-29 02:00:34,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-29 02:00:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:34,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-29 02:00:34,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:34,955 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 [2023-08-29 02:00:34,971 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:34,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:00:34,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431088680] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:34,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 02:00:34,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-29 02:00:34,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719915499] [2023-08-29 02:00:34,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:34,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:34,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:34,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:34,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:00:35,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 162 [2023-08-29 02:00:35,007 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) [2023-08-29 02:00:35,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:35,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 162 [2023-08-29 02:00:35,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:35,486 INFO L130 PetriNetUnfolder]: 1638/3954 cut-off events. [2023-08-29 02:00:35,486 INFO L131 PetriNetUnfolder]: For 14894/15076 co-relation queries the response was YES. [2023-08-29 02:00:35,496 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. [2023-08-29 02:00:35,509 INFO L137 encePairwiseOnDemand]: 154/162 looper letters, 155 selfloop transitions, 12 changer transitions 0/304 dead transitions. [2023-08-29 02:00:35,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 304 transitions, 3303 flow [2023-08-29 02:00:35,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:35,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:35,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 554 transitions. [2023-08-29 02:00:35,511 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5699588477366255 [2023-08-29 02:00:35,511 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 554 transitions. [2023-08-29 02:00:35,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 554 transitions. [2023-08-29 02:00:35,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:35,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 554 transitions. [2023-08-29 02:00:35,513 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) [2023-08-29 02:00:35,514 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) [2023-08-29 02:00:35,514 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) [2023-08-29 02:00:35,514 INFO L175 Difference]: Start difference. First operand has 105 places, 205 transitions, 1836 flow. Second operand 6 states and 554 transitions. [2023-08-29 02:00:35,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 304 transitions, 3303 flow [2023-08-29 02:00:35,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 304 transitions, 2973 flow, removed 165 selfloop flow, removed 0 redundant places. [2023-08-29 02:00:35,573 INFO L231 Difference]: Finished difference. Result has 113 places, 215 transitions, 1753 flow [2023-08-29 02:00:35,574 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} [2023-08-29 02:00:35,574 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 72 predicate places. [2023-08-29 02:00:35,574 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 215 transitions, 1753 flow [2023-08-29 02:00:35,575 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) [2023-08-29 02:00:35,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:35,575 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] [2023-08-29 02:00:35,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-29 02:00:35,779 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 [2023-08-29 02:00:35,779 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)] === [2023-08-29 02:00:35,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:35,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1702390636, now seen corresponding path program 2 times [2023-08-29 02:00:35,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:35,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107121466] [2023-08-29 02:00:35,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:35,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:36,191 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 02:00:36,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:36,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107121466] [2023-08-29 02:00:36,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107121466] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:36,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915055263] [2023-08-29 02:00:36,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:00:36,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:36,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:36,206 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) [2023-08-29 02:00:36,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-29 02:00:36,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 02:00:36,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:00:36,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-29 02:00:36,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:36,370 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 [2023-08-29 02:00:36,405 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:36,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:00:36,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915055263] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:36,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 02:00:36,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-29 02:00:36,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320249322] [2023-08-29 02:00:36,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:36,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:36,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:36,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:36,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:00:36,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 162 [2023-08-29 02:00:36,460 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) [2023-08-29 02:00:36,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:36,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 162 [2023-08-29 02:00:36,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:37,047 INFO L130 PetriNetUnfolder]: 1937/4650 cut-off events. [2023-08-29 02:00:37,047 INFO L131 PetriNetUnfolder]: For 15735/15892 co-relation queries the response was YES. [2023-08-29 02:00:37,064 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. [2023-08-29 02:00:37,089 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 143 selfloop transitions, 19 changer transitions 0/299 dead transitions. [2023-08-29 02:00:37,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 299 transitions, 2920 flow [2023-08-29 02:00:37,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:37,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:37,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 551 transitions. [2023-08-29 02:00:37,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5668724279835391 [2023-08-29 02:00:37,144 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 551 transitions. [2023-08-29 02:00:37,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 551 transitions. [2023-08-29 02:00:37,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:37,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 551 transitions. [2023-08-29 02:00:37,146 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) [2023-08-29 02:00:37,147 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) [2023-08-29 02:00:37,147 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) [2023-08-29 02:00:37,147 INFO L175 Difference]: Start difference. First operand has 113 places, 215 transitions, 1753 flow. Second operand 6 states and 551 transitions. [2023-08-29 02:00:37,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 299 transitions, 2920 flow [2023-08-29 02:00:37,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 299 transitions, 2919 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:37,186 INFO L231 Difference]: Finished difference. Result has 119 places, 224 transitions, 1894 flow [2023-08-29 02:00:37,186 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} [2023-08-29 02:00:37,187 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 78 predicate places. [2023-08-29 02:00:37,187 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 224 transitions, 1894 flow [2023-08-29 02:00:37,187 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) [2023-08-29 02:00:37,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:37,188 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] [2023-08-29 02:00:37,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-29 02:00:37,392 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 [2023-08-29 02:00:37,392 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)] === [2023-08-29 02:00:37,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:37,393 INFO L85 PathProgramCache]: Analyzing trace with hash 385579575, now seen corresponding path program 1 times [2023-08-29 02:00:37,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:37,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118606745] [2023-08-29 02:00:37,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:37,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 02:00:37,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:37,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118606745] [2023-08-29 02:00:37,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118606745] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:37,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953483260] [2023-08-29 02:00:37,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:37,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:37,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:37,756 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) [2023-08-29 02:00:37,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-29 02:00:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:37,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-29 02:00:37,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:37,879 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 [2023-08-29 02:00:37,898 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:37,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:00:37,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953483260] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:37,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 02:00:37,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-29 02:00:37,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316732028] [2023-08-29 02:00:37,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:37,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:37,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:37,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:37,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:00:37,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 162 [2023-08-29 02:00:37,938 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) [2023-08-29 02:00:37,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:37,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 162 [2023-08-29 02:00:37,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:38,378 INFO L130 PetriNetUnfolder]: 1639/3977 cut-off events. [2023-08-29 02:00:38,379 INFO L131 PetriNetUnfolder]: For 14874/15016 co-relation queries the response was YES. [2023-08-29 02:00:38,391 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. [2023-08-29 02:00:38,402 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 145 selfloop transitions, 22 changer transitions 0/304 dead transitions. [2023-08-29 02:00:38,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 304 transitions, 3049 flow [2023-08-29 02:00:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 02:00:38,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 02:00:38,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 642 transitions. [2023-08-29 02:00:38,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5661375661375662 [2023-08-29 02:00:38,404 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 642 transitions. [2023-08-29 02:00:38,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 642 transitions. [2023-08-29 02:00:38,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:38,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 642 transitions. [2023-08-29 02:00:38,406 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) [2023-08-29 02:00:38,407 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) [2023-08-29 02:00:38,407 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) [2023-08-29 02:00:38,407 INFO L175 Difference]: Start difference. First operand has 119 places, 224 transitions, 1894 flow. Second operand 7 states and 642 transitions. [2023-08-29 02:00:38,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 304 transitions, 3049 flow [2023-08-29 02:00:38,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 304 transitions, 3035 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 02:00:38,437 INFO L231 Difference]: Finished difference. Result has 126 places, 227 transitions, 1984 flow [2023-08-29 02:00:38,437 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} [2023-08-29 02:00:38,437 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 85 predicate places. [2023-08-29 02:00:38,438 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 227 transitions, 1984 flow [2023-08-29 02:00:38,438 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) [2023-08-29 02:00:38,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:38,438 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] [2023-08-29 02:00:38,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-29 02:00:38,643 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 [2023-08-29 02:00:38,643 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)] === [2023-08-29 02:00:38,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:38,643 INFO L85 PathProgramCache]: Analyzing trace with hash -255637439, now seen corresponding path program 2 times [2023-08-29 02:00:38,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:38,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279446128] [2023-08-29 02:00:38,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:38,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:39,015 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 02:00:39,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:39,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279446128] [2023-08-29 02:00:39,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279446128] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:39,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392976790] [2023-08-29 02:00:39,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:00:39,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:39,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:39,017 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) [2023-08-29 02:00:39,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-29 02:00:39,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 02:00:39,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:00:39,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-29 02:00:39,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:39,150 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 [2023-08-29 02:00:39,189 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:39,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:00:39,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392976790] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:39,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 02:00:39,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-29 02:00:39,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946820584] [2023-08-29 02:00:39,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:39,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:39,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:39,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:39,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:00:39,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 162 [2023-08-29 02:00:39,239 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) [2023-08-29 02:00:39,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:39,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 162 [2023-08-29 02:00:39,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:39,778 INFO L130 PetriNetUnfolder]: 1586/3889 cut-off events. [2023-08-29 02:00:39,778 INFO L131 PetriNetUnfolder]: For 15479/15665 co-relation queries the response was YES. [2023-08-29 02:00:39,793 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. [2023-08-29 02:00:39,805 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 142 selfloop transitions, 17 changer transitions 1/297 dead transitions. [2023-08-29 02:00:39,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 297 transitions, 2958 flow [2023-08-29 02:00:39,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:39,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:39,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 551 transitions. [2023-08-29 02:00:39,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5668724279835391 [2023-08-29 02:00:39,807 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 551 transitions. [2023-08-29 02:00:39,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 551 transitions. [2023-08-29 02:00:39,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:39,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 551 transitions. [2023-08-29 02:00:39,809 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) [2023-08-29 02:00:39,811 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) [2023-08-29 02:00:39,811 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) [2023-08-29 02:00:39,811 INFO L175 Difference]: Start difference. First operand has 126 places, 227 transitions, 1984 flow. Second operand 6 states and 551 transitions. [2023-08-29 02:00:39,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 297 transitions, 2958 flow [2023-08-29 02:00:39,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 297 transitions, 2918 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-29 02:00:39,845 INFO L231 Difference]: Finished difference. Result has 130 places, 230 transitions, 2028 flow [2023-08-29 02:00:39,846 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} [2023-08-29 02:00:39,846 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 89 predicate places. [2023-08-29 02:00:39,846 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 230 transitions, 2028 flow [2023-08-29 02:00:39,846 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) [2023-08-29 02:00:39,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:39,847 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] [2023-08-29 02:00:39,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-29 02:00:40,063 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 [2023-08-29 02:00:40,064 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)] === [2023-08-29 02:00:40,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:40,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1998645577, now seen corresponding path program 1 times [2023-08-29 02:00:40,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:40,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454900289] [2023-08-29 02:00:40,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:40,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:40,280 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-08-29 02:00:40,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:40,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454900289] [2023-08-29 02:00:40,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454900289] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:40,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:40,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:00:40,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044055735] [2023-08-29 02:00:40,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:40,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:40,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:40,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:40,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:00:40,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 162 [2023-08-29 02:00:40,365 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) [2023-08-29 02:00:40,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:40,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 162 [2023-08-29 02:00:40,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:40,934 INFO L130 PetriNetUnfolder]: 2181/4762 cut-off events. [2023-08-29 02:00:40,934 INFO L131 PetriNetUnfolder]: For 19988/20107 co-relation queries the response was YES. [2023-08-29 02:00:40,951 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. [2023-08-29 02:00:40,966 INFO L137 encePairwiseOnDemand]: 151/162 looper letters, 216 selfloop transitions, 84 changer transitions 4/335 dead transitions. [2023-08-29 02:00:40,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 335 transitions, 3818 flow [2023-08-29 02:00:40,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:40,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:40,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 557 transitions. [2023-08-29 02:00:40,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.573045267489712 [2023-08-29 02:00:40,968 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 557 transitions. [2023-08-29 02:00:40,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 557 transitions. [2023-08-29 02:00:40,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:40,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 557 transitions. [2023-08-29 02:00:40,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:40,970 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) [2023-08-29 02:00:40,970 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) [2023-08-29 02:00:40,970 INFO L175 Difference]: Start difference. First operand has 130 places, 230 transitions, 2028 flow. Second operand 6 states and 557 transitions. [2023-08-29 02:00:40,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 335 transitions, 3818 flow [2023-08-29 02:00:41,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 335 transitions, 3748 flow, removed 17 selfloop flow, removed 2 redundant places. [2023-08-29 02:00:41,006 INFO L231 Difference]: Finished difference. Result has 138 places, 269 transitions, 2896 flow [2023-08-29 02:00:41,006 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} [2023-08-29 02:00:41,007 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 97 predicate places. [2023-08-29 02:00:41,007 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 269 transitions, 2896 flow [2023-08-29 02:00:41,007 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) [2023-08-29 02:00:41,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:41,007 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] [2023-08-29 02:00:41,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 02:00:41,008 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)] === [2023-08-29 02:00:41,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:41,008 INFO L85 PathProgramCache]: Analyzing trace with hash -895649499, now seen corresponding path program 1 times [2023-08-29 02:00:41,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:41,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433733359] [2023-08-29 02:00:41,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:41,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:41,553 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:41,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:41,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433733359] [2023-08-29 02:00:41,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433733359] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:41,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838277663] [2023-08-29 02:00:41,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:41,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:41,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:41,559 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) [2023-08-29 02:00:41,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-29 02:00:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:41,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-29 02:00:41,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:41,892 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 [2023-08-29 02:00:41,924 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 [2023-08-29 02:00:41,961 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 [2023-08-29 02:00:42,000 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 [2023-08-29 02:00:42,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:00:42,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:00:42,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:00:42,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:00:42,068 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 [2023-08-29 02:00:42,093 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:42,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:00:42,685 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:42,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838277663] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:00:42,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:00:42,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-29 02:00:42,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136339285] [2023-08-29 02:00:42,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:00:42,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-29 02:00:42,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:42,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-29 02:00:42,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=767, Unknown=0, NotChecked=0, Total=930 [2023-08-29 02:00:47,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 162 [2023-08-29 02:00:47,511 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) [2023-08-29 02:00:47,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:47,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 162 [2023-08-29 02:00:47,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:50,793 INFO L130 PetriNetUnfolder]: 3583/7852 cut-off events. [2023-08-29 02:00:50,794 INFO L131 PetriNetUnfolder]: For 40755/40964 co-relation queries the response was YES. [2023-08-29 02:00:50,820 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. [2023-08-29 02:00:50,845 INFO L137 encePairwiseOnDemand]: 144/162 looper letters, 742 selfloop transitions, 155 changer transitions 10/938 dead transitions. [2023-08-29 02:00:50,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 938 transitions, 11687 flow [2023-08-29 02:00:50,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 02:00:50,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 02:00:50,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1446 transitions. [2023-08-29 02:00:50,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49588477366255146 [2023-08-29 02:00:50,848 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1446 transitions. [2023-08-29 02:00:50,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1446 transitions. [2023-08-29 02:00:50,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:50,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1446 transitions. [2023-08-29 02:00:50,851 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) [2023-08-29 02:00:50,854 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) [2023-08-29 02:00:50,855 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) [2023-08-29 02:00:50,855 INFO L175 Difference]: Start difference. First operand has 138 places, 269 transitions, 2896 flow. Second operand 18 states and 1446 transitions. [2023-08-29 02:00:50,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 938 transitions, 11687 flow [2023-08-29 02:00:50,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 938 transitions, 11339 flow, removed 174 selfloop flow, removed 0 redundant places. [2023-08-29 02:00:50,950 INFO L231 Difference]: Finished difference. Result has 168 places, 391 transitions, 5041 flow [2023-08-29 02:00:50,950 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} [2023-08-29 02:00:50,951 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 127 predicate places. [2023-08-29 02:00:50,951 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 391 transitions, 5041 flow [2023-08-29 02:00:50,951 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) [2023-08-29 02:00:50,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:50,952 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] [2023-08-29 02:00:50,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-29 02:00:51,157 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 [2023-08-29 02:00:51,158 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)] === [2023-08-29 02:00:51,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:51,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1026124926, now seen corresponding path program 1 times [2023-08-29 02:00:51,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:51,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400247093] [2023-08-29 02:00:51,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:51,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:51,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:51,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400247093] [2023-08-29 02:00:51,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400247093] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:51,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813543230] [2023-08-29 02:00:51,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:51,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:51,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:51,641 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) [2023-08-29 02:00:51,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-29 02:00:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:51,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-29 02:00:51,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:52,007 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 [2023-08-29 02:00:52,039 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 [2023-08-29 02:00:52,076 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 [2023-08-29 02:00:52,118 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 [2023-08-29 02:00:52,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:00:52,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:00:52,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:00:52,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:00:52,172 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 [2023-08-29 02:00:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:52,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:00:52,911 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:52,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813543230] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:00:52,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:00:52,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-29 02:00:52,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812295922] [2023-08-29 02:00:52,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:00:52,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-29 02:00:52,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:52,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-29 02:00:52,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=770, Unknown=0, NotChecked=0, Total=930 [2023-08-29 02:00:56,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 162 [2023-08-29 02:00:56,357 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) [2023-08-29 02:00:56,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:56,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 162 [2023-08-29 02:00:56,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:01:00,891 INFO L130 PetriNetUnfolder]: 5101/10638 cut-off events. [2023-08-29 02:01:00,891 INFO L131 PetriNetUnfolder]: For 69030/69171 co-relation queries the response was YES. [2023-08-29 02:01:00,942 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. [2023-08-29 02:01:00,982 INFO L137 encePairwiseOnDemand]: 141/162 looper letters, 751 selfloop transitions, 171 changer transitions 10/947 dead transitions. [2023-08-29 02:01:00,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 947 transitions, 12344 flow [2023-08-29 02:01:00,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:01:00,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:01:00,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1286 transitions. [2023-08-29 02:01:00,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46695715323166304 [2023-08-29 02:01:00,988 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1286 transitions. [2023-08-29 02:01:00,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1286 transitions. [2023-08-29 02:01:00,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:01:00,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1286 transitions. [2023-08-29 02:01:00,991 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) [2023-08-29 02:01:00,994 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) [2023-08-29 02:01:00,995 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) [2023-08-29 02:01:00,995 INFO L175 Difference]: Start difference. First operand has 168 places, 391 transitions, 5041 flow. Second operand 17 states and 1286 transitions. [2023-08-29 02:01:00,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 947 transitions, 12344 flow [2023-08-29 02:01:01,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 947 transitions, 12321 flow, removed 11 selfloop flow, removed 1 redundant places. [2023-08-29 02:01:01,221 INFO L231 Difference]: Finished difference. Result has 193 places, 523 transitions, 7490 flow [2023-08-29 02:01:01,221 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} [2023-08-29 02:01:01,222 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 152 predicate places. [2023-08-29 02:01:01,222 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 523 transitions, 7490 flow [2023-08-29 02:01:01,222 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) [2023-08-29 02:01:01,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:01:01,223 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] [2023-08-29 02:01:01,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-08-29 02:01:01,427 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 [2023-08-29 02:01:01,427 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)] === [2023-08-29 02:01:01,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:01:01,428 INFO L85 PathProgramCache]: Analyzing trace with hash -807798399, now seen corresponding path program 2 times [2023-08-29 02:01:01,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:01:01,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440736293] [2023-08-29 02:01:01,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:01:01,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:01:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:01:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:01:02,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:01:02,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440736293] [2023-08-29 02:01:02,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440736293] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:01:02,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189437865] [2023-08-29 02:01:02,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:01:02,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:01:02,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:01:02,233 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) [2023-08-29 02:01:02,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-29 02:01:02,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-29 02:01:02,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:01:02,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-29 02:01:02,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:01:02,547 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 [2023-08-29 02:01:02,575 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 [2023-08-29 02:01:02,608 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 [2023-08-29 02:01:02,649 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 [2023-08-29 02:01:02,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,741 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 [2023-08-29 02:01:02,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,761 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 [2023-08-29 02:01:02,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,788 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 [2023-08-29 02:01:02,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,812 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 [2023-08-29 02:01:02,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:02,860 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 [2023-08-29 02:01:02,883 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:01:02,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:01:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:01:25,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189437865] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:01:25,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:01:25,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 32 [2023-08-29 02:01:25,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849899441] [2023-08-29 02:01:25,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:01:25,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-29 02:01:25,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:01:25,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-29 02:01:25,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=868, Unknown=9, NotChecked=0, Total=1056 [2023-08-29 02:01:28,045 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] [2023-08-29 02:01:32,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:33,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:37,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:39,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:42,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:45,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:50,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:53,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:56,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:02,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:02,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 162 [2023-08-29 02:02:02,160 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) [2023-08-29 02:02:02,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:02:02,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 162 [2023-08-29 02:02:02,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:02:13,636 INFO L130 PetriNetUnfolder]: 10883/21854 cut-off events. [2023-08-29 02:02:13,636 INFO L131 PetriNetUnfolder]: For 173503/173503 co-relation queries the response was YES. [2023-08-29 02:02:13,819 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. [2023-08-29 02:02:14,036 INFO L137 encePairwiseOnDemand]: 144/162 looper letters, 1733 selfloop transitions, 509 changer transitions 22/2264 dead transitions. [2023-08-29 02:02:14,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 2264 transitions, 32585 flow [2023-08-29 02:02:14,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-08-29 02:02:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-08-29 02:02:14,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1836 transitions. [2023-08-29 02:02:14,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37777777777777777 [2023-08-29 02:02:14,043 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1836 transitions. [2023-08-29 02:02:14,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1836 transitions. [2023-08-29 02:02:14,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:02:14,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1836 transitions. [2023-08-29 02:02:14,048 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) [2023-08-29 02:02:14,063 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) [2023-08-29 02:02:14,065 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) [2023-08-29 02:02:14,065 INFO L175 Difference]: Start difference. First operand has 193 places, 523 transitions, 7490 flow. Second operand 30 states and 1836 transitions. [2023-08-29 02:02:14,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 2264 transitions, 32585 flow [2023-08-29 02:02:14,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 2264 transitions, 32299 flow, removed 106 selfloop flow, removed 2 redundant places. [2023-08-29 02:02:14,888 INFO L231 Difference]: Finished difference. Result has 241 places, 904 transitions, 16072 flow [2023-08-29 02:02:14,889 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} [2023-08-29 02:02:14,890 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 200 predicate places. [2023-08-29 02:02:14,890 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 904 transitions, 16072 flow [2023-08-29 02:02:14,890 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) [2023-08-29 02:02:14,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:02:14,891 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] [2023-08-29 02:02:14,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-08-29 02:02:15,097 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 [2023-08-29 02:02:15,097 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)] === [2023-08-29 02:02:15,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:02:15,098 INFO L85 PathProgramCache]: Analyzing trace with hash -490880420, now seen corresponding path program 2 times [2023-08-29 02:02:15,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:02:15,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307871606] [2023-08-29 02:02:15,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:02:15,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:02:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:02:15,537 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:02:15,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:02:15,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307871606] [2023-08-29 02:02:15,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307871606] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:02:15,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854299320] [2023-08-29 02:02:15,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:02:15,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:02:15,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:02:15,538 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) [2023-08-29 02:02:15,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-29 02:02:15,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-29 02:02:15,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:02:15,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 41 conjunts are in the unsatisfiable core [2023-08-29 02:02:15,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:02:15,966 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 [2023-08-29 02:02:16,006 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 [2023-08-29 02:02:16,048 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 [2023-08-29 02:02:16,101 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 [2023-08-29 02:02:16,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:02:16,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:02:16,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:02:16,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:02:16,224 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 [2023-08-29 02:02:16,254 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:02:16,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:02:24,752 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:02:24,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854299320] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:02:24,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:02:24,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-29 02:02:24,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833197220] [2023-08-29 02:02:24,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:02:24,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-29 02:02:24,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:02:24,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-29 02:02:24,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=741, Unknown=2, NotChecked=0, Total=930 [2023-08-29 02:02:26,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:29,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:31,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:34,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:36,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:38,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:40,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:42,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:44,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:46,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:48,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:50,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:52,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:54,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:56,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:58,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:00,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:02,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:05,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:07,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:09,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:11,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:11,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 162 [2023-08-29 02:03:11,917 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) [2023-08-29 02:03:11,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:03:11,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 162 [2023-08-29 02:03:11,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:03:22,092 INFO L130 PetriNetUnfolder]: 12154/24396 cut-off events. [2023-08-29 02:03:22,092 INFO L131 PetriNetUnfolder]: For 254478/254478 co-relation queries the response was YES. [2023-08-29 02:03:22,248 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. [2023-08-29 02:03:22,431 INFO L137 encePairwiseOnDemand]: 141/162 looper letters, 1149 selfloop transitions, 314 changer transitions 9/1472 dead transitions. [2023-08-29 02:03:22,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 1472 transitions, 25504 flow [2023-08-29 02:03:22,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 02:03:22,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 02:03:22,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 924 transitions. [2023-08-29 02:03:22,433 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35648148148148145 [2023-08-29 02:03:22,433 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 924 transitions. [2023-08-29 02:03:22,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 924 transitions. [2023-08-29 02:03:22,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:03:22,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 924 transitions. [2023-08-29 02:03:22,436 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) [2023-08-29 02:03:22,438 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) [2023-08-29 02:03:22,439 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) [2023-08-29 02:03:22,439 INFO L175 Difference]: Start difference. First operand has 241 places, 904 transitions, 16072 flow. Second operand 16 states and 924 transitions. [2023-08-29 02:03:22,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 1472 transitions, 25504 flow [2023-08-29 02:03:23,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 1472 transitions, 25037 flow, removed 106 selfloop flow, removed 6 redundant places. [2023-08-29 02:03:23,875 INFO L231 Difference]: Finished difference. Result has 259 places, 1034 transitions, 18903 flow [2023-08-29 02:03:23,875 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} [2023-08-29 02:03:23,876 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 218 predicate places. [2023-08-29 02:03:23,876 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 1034 transitions, 18903 flow [2023-08-29 02:03:23,877 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) [2023-08-29 02:03:23,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:03:23,877 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] [2023-08-29 02:03:23,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-08-29 02:03:24,082 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 [2023-08-29 02:03:24,082 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)] === [2023-08-29 02:03:24,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:03:24,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1546329922, now seen corresponding path program 1 times [2023-08-29 02:03:24,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:03:24,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61492974] [2023-08-29 02:03:24,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:03:24,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:03:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:03:24,548 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:03:24,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:03:24,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61492974] [2023-08-29 02:03:24,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61492974] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:03:24,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345110293] [2023-08-29 02:03:24,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:03:24,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:03:24,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:03:24,557 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) [2023-08-29 02:03:24,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-29 02:03:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:03:24,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 36 conjunts are in the unsatisfiable core [2023-08-29 02:03:24,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:03:24,861 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 [2023-08-29 02:03:24,893 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 [2023-08-29 02:03:24,927 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 [2023-08-29 02:03:24,973 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 [2023-08-29 02:03:25,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:03:25,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:03:25,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:03:25,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:03:25,069 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 [2023-08-29 02:03:25,096 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:03:25,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:03:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:03:31,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345110293] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:03:31,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:03:31,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-29 02:03:31,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281126562] [2023-08-29 02:03:31,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:03:31,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-29 02:03:31,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:03:31,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-29 02:03:31,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=834, Unknown=1, NotChecked=0, Total=992 [2023-08-29 02:03:34,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:36,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:38,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:40,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:43,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:45,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:47,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:49,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:52,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:54,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:56,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:58,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:00,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:03,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:05,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:07,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:09,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:12,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:14,216 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] [2023-08-29 02:04:14,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 162 [2023-08-29 02:04:14,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 1034 transitions, 18903 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) [2023-08-29 02:04:14,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:04:14,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 162 [2023-08-29 02:04:14,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:04:39,121 WARN L222 SmtUtils]: Spent 6.98s on a formula simplification. DAG size of input: 71 DAG size of output: 56 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-29 02:04:53,372 INFO L130 PetriNetUnfolder]: 12491/25099 cut-off events. [2023-08-29 02:04:53,373 INFO L131 PetriNetUnfolder]: For 299975/299975 co-relation queries the response was YES. [2023-08-29 02:04:53,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168211 conditions, 25099 events. 12491/25099 cut-off events. For 299975/299975 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 206240 event pairs, 2434 based on Foata normal form. 29/25128 useless extension candidates. Maximal degree in co-relation 168066. Up to 5773 conditions per place. [2023-08-29 02:04:53,738 INFO L137 encePairwiseOnDemand]: 140/162 looper letters, 1822 selfloop transitions, 754 changer transitions 22/2598 dead transitions. [2023-08-29 02:04:53,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 2598 transitions, 43643 flow [2023-08-29 02:04:53,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-08-29 02:04:53,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-08-29 02:04:53,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2113 transitions. [2023-08-29 02:04:53,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3623113854595336 [2023-08-29 02:04:53,748 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 2113 transitions. [2023-08-29 02:04:53,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 2113 transitions. [2023-08-29 02:04:53,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:04:53,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 2113 transitions. [2023-08-29 02:04:53,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 58.69444444444444) internal successors, (2113), 36 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:04:53,758 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) [2023-08-29 02:04:53,759 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) [2023-08-29 02:04:53,759 INFO L175 Difference]: Start difference. First operand has 259 places, 1034 transitions, 18903 flow. Second operand 36 states and 2113 transitions. [2023-08-29 02:04:53,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 2598 transitions, 43643 flow [2023-08-29 02:04:55,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 2598 transitions, 43273 flow, removed 177 selfloop flow, removed 3 redundant places. [2023-08-29 02:04:55,614 INFO L231 Difference]: Finished difference. Result has 320 places, 1466 transitions, 29242 flow [2023-08-29 02:04:55,615 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=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=29242, PETRI_PLACES=320, PETRI_TRANSITIONS=1466} [2023-08-29 02:04:55,615 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 279 predicate places. [2023-08-29 02:04:55,615 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 1466 transitions, 29242 flow [2023-08-29 02:04:55,615 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) [2023-08-29 02:04:55,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:04:55,616 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] [2023-08-29 02:04:55,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-29 02:04:55,821 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 [2023-08-29 02:04:55,822 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)] === [2023-08-29 02:04:55,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:04:55,822 INFO L85 PathProgramCache]: Analyzing trace with hash 130996428, now seen corresponding path program 3 times [2023-08-29 02:04:55,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:04:55,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655441331] [2023-08-29 02:04:55,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:04:55,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:04:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:04:56,250 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:04:56,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:04:56,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655441331] [2023-08-29 02:04:56,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655441331] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:04:56,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635870728] [2023-08-29 02:04:56,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-29 02:04:56,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:04:56,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:04:56,254 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) [2023-08-29 02:04:56,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-29 02:04:56,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-29 02:04:56,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:04:56,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 41 conjunts are in the unsatisfiable core [2023-08-29 02:04:56,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:04:56,647 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 [2023-08-29 02:04:56,675 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 [2023-08-29 02:04:56,710 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 [2023-08-29 02:04:56,764 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 [2023-08-29 02:04:56,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,878 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 [2023-08-29 02:04:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:04:56,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:05:05,205 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:05:05,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635870728] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:05:05,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:05:05,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-29 02:05:05,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884298874] [2023-08-29 02:05:05,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:05:05,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-29 02:05:05,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:05:05,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-29 02:05:05,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=814, Unknown=2, NotChecked=0, Total=992 [2023-08-29 02:05:07,763 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] [2023-08-29 02:05:09,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:11,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:13,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:16,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:18,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:20,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:22,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:24,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:27,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:29,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:31,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:34,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:37,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:39,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:41,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:43,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:45,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:48,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:50,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:52,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:52,458 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 162 [2023-08-29 02:05:52,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 1466 transitions, 29242 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) [2023-08-29 02:05:52,459 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:05:52,459 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 162 [2023-08-29 02:05:52,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:06:08,668 INFO L130 PetriNetUnfolder]: 15514/31209 cut-off events. [2023-08-29 02:06:08,669 INFO L131 PetriNetUnfolder]: For 465761/465761 co-relation queries the response was YES. [2023-08-29 02:06:09,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227405 conditions, 31209 events. 15514/31209 cut-off events. For 465761/465761 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 265214 event pairs, 3950 based on Foata normal form. 27/31236 useless extension candidates. Maximal degree in co-relation 227231. Up to 17935 conditions per place. [2023-08-29 02:06:09,265 INFO L137 encePairwiseOnDemand]: 140/162 looper letters, 2154 selfloop transitions, 587 changer transitions 92/2833 dead transitions. [2023-08-29 02:06:09,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 2833 transitions, 53961 flow [2023-08-29 02:06:09,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-08-29 02:06:09,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-08-29 02:06:09,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1727 transitions. [2023-08-29 02:06:09,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3676032354193274 [2023-08-29 02:06:09,268 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1727 transitions. [2023-08-29 02:06:09,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1727 transitions. [2023-08-29 02:06:09,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:06:09,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1727 transitions. [2023-08-29 02:06:09,270 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) [2023-08-29 02:06:09,273 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) [2023-08-29 02:06:09,273 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) [2023-08-29 02:06:09,273 INFO L175 Difference]: Start difference. First operand has 320 places, 1466 transitions, 29242 flow. Second operand 29 states and 1727 transitions. [2023-08-29 02:06:09,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 2833 transitions, 53961 flow [2023-08-29 02:06:13,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 2833 transitions, 53152 flow, removed 400 selfloop flow, removed 2 redundant places. [2023-08-29 02:06:13,520 INFO L231 Difference]: Finished difference. Result has 365 places, 1726 transitions, 35941 flow [2023-08-29 02:06:13,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=28495, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=344, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1037, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=35941, PETRI_PLACES=365, PETRI_TRANSITIONS=1726} [2023-08-29 02:06:13,521 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 324 predicate places. [2023-08-29 02:06:13,521 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 1726 transitions, 35941 flow [2023-08-29 02:06:13,522 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) [2023-08-29 02:06:13,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:06:13,522 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] [2023-08-29 02:06:13,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-08-29 02:06:13,727 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 [2023-08-29 02:06:13,727 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)] === [2023-08-29 02:06:13,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:06:13,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1009383502, now seen corresponding path program 1 times [2023-08-29 02:06:13,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:06:13,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527459920] [2023-08-29 02:06:13,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:06:13,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:06:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:06:14,275 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:06:14,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:06:14,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527459920] [2023-08-29 02:06:14,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527459920] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:06:14,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945006226] [2023-08-29 02:06:14,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:06:14,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:06:14,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:06:14,277 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) [2023-08-29 02:06:14,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-08-29 02:06:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:06:14,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-29 02:06:14,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:06:14,698 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 [2023-08-29 02:06:14,734 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 [2023-08-29 02:06:14,776 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 [2023-08-29 02:06:14,822 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 [2023-08-29 02:06:14,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:06:14,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:06:14,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:06:14,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:06:14,873 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 [2023-08-29 02:06:14,902 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:06:14,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:06:15,566 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:06:15,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945006226] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:06:15,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:06:15,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-29 02:06:15,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908900223] [2023-08-29 02:06:15,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:06:15,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-29 02:06:15,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:06:15,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-29 02:06:15,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=822, Unknown=0, NotChecked=0, Total=992 [2023-08-29 02:06:17,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 162 [2023-08-29 02:06:17,290 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) [2023-08-29 02:06:17,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:06:17,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 162 [2023-08-29 02:06:17,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:06:38,392 INFO L130 PetriNetUnfolder]: 16723/34745 cut-off events. [2023-08-29 02:06:38,392 INFO L131 PetriNetUnfolder]: For 604361/604797 co-relation queries the response was YES. [2023-08-29 02:06:38,869 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. [2023-08-29 02:06:39,012 INFO L137 encePairwiseOnDemand]: 140/162 looper letters, 3010 selfloop transitions, 470 changer transitions 127/3612 dead transitions. [2023-08-29 02:06:39,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 3612 transitions, 73559 flow [2023-08-29 02:06:39,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-08-29 02:06:39,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2023-08-29 02:06:39,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2673 transitions. [2023-08-29 02:06:39,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4852941176470588 [2023-08-29 02:06:39,046 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 2673 transitions. [2023-08-29 02:06:39,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 2673 transitions. [2023-08-29 02:06:39,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:06:39,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 2673 transitions. [2023-08-29 02:06:39,049 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) [2023-08-29 02:06:39,052 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) [2023-08-29 02:06:39,052 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) [2023-08-29 02:06:39,052 INFO L175 Difference]: Start difference. First operand has 365 places, 1726 transitions, 35941 flow. Second operand 34 states and 2673 transitions. [2023-08-29 02:06:39,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 3612 transitions, 73559 flow [2023-08-29 02:06:44,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 3612 transitions, 71776 flow, removed 771 selfloop flow, removed 6 redundant places. [2023-08-29 02:06:44,705 INFO L231 Difference]: Finished difference. Result has 417 places, 2045 transitions, 41711 flow [2023-08-29 02:06:44,706 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} [2023-08-29 02:06:44,707 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 376 predicate places. [2023-08-29 02:06:44,707 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 2045 transitions, 41711 flow [2023-08-29 02:06:44,708 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) [2023-08-29 02:06:44,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:06:44,708 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] [2023-08-29 02:06:44,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-08-29 02:06:44,913 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 [2023-08-29 02:06:44,913 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)] === [2023-08-29 02:06:44,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:06:44,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1286276962, now seen corresponding path program 4 times [2023-08-29 02:06:44,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:06:44,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155024816] [2023-08-29 02:06:44,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:06:44,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:06:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:06:45,428 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:06:45,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:06:45,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155024816] [2023-08-29 02:06:45,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155024816] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:06:45,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665686201] [2023-08-29 02:06:45,429 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-29 02:06:45,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:06:45,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:06:45,430 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) [2023-08-29 02:06:45,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-08-29 02:06:45,691 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-29 02:06:45,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:06:45,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 48 conjunts are in the unsatisfiable core [2023-08-29 02:06:45,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:06:45,950 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 [2023-08-29 02:06:45,987 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 [2023-08-29 02:06:46,030 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 [2023-08-29 02:06:46,085 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 [2023-08-29 02:06:46,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:06:46,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:06:46,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:06:46,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:06:46,204 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 [2023-08-29 02:06:46,234 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:06:46,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:06:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:06:57,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665686201] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:06:57,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:06:57,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-29 02:06:57,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976570140] [2023-08-29 02:06:57,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:06:57,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-29 02:06:57,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:06:57,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-29 02:06:57,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=812, Unknown=4, NotChecked=0, Total=992 [2023-08-29 02:07:00,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:02,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:04,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:06,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:08,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:11,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:13,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:15,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:17,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:20,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:22,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:25,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:27,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:29,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:31,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:33,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:35,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:38,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:40,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:42,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:42,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 162 [2023-08-29 02:07:42,584 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) [2023-08-29 02:07:42,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:07:42,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 162 [2023-08-29 02:07:42,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:16,014 INFO L130 PetriNetUnfolder]: 23055/46357 cut-off events. [2023-08-29 02:08:16,014 INFO L131 PetriNetUnfolder]: For 931978/931978 co-relation queries the response was YES. [2023-08-29 02:08:17,140 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. [2023-08-29 02:08:17,394 INFO L137 encePairwiseOnDemand]: 141/162 looper letters, 2754 selfloop transitions, 1046 changer transitions 40/3840 dead transitions. [2023-08-29 02:08:17,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 3840 transitions, 80686 flow [2023-08-29 02:08:17,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-08-29 02:08:17,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-08-29 02:08:17,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1765 transitions. [2023-08-29 02:08:17,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3631687242798354 [2023-08-29 02:08:17,397 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1765 transitions. [2023-08-29 02:08:17,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1765 transitions. [2023-08-29 02:08:17,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:17,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1765 transitions. [2023-08-29 02:08:17,400 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) [2023-08-29 02:08:17,404 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) [2023-08-29 02:08:17,404 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) [2023-08-29 02:08:17,404 INFO L175 Difference]: Start difference. First operand has 417 places, 2045 transitions, 41711 flow. Second operand 30 states and 1765 transitions. [2023-08-29 02:08:17,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 3840 transitions, 80686 flow [2023-08-29 02:08:30,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 3840 transitions, 79197 flow, removed 744 selfloop flow, removed 1 redundant places. [2023-08-29 02:08:30,239 INFO L231 Difference]: Finished difference. Result has 463 places, 2530 transitions, 55667 flow [2023-08-29 02:08:30,241 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} [2023-08-29 02:08:30,241 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 422 predicate places. [2023-08-29 02:08:30,241 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 2530 transitions, 55667 flow [2023-08-29 02:08:30,241 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) [2023-08-29 02:08:30,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:30,242 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] [2023-08-29 02:08:30,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-08-29 02:08:30,447 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 [2023-08-29 02:08:30,447 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)] === [2023-08-29 02:08:30,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:30,448 INFO L85 PathProgramCache]: Analyzing trace with hash -547745439, now seen corresponding path program 1 times [2023-08-29 02:08:30,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:30,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309455008] [2023-08-29 02:08:30,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:30,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:31,176 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:08:31,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:31,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309455008] [2023-08-29 02:08:31,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309455008] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:08:31,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268191327] [2023-08-29 02:08:31,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:31,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:08:31,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:08:31,178 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) [2023-08-29 02:08:31,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-08-29 02:08:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:31,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-29 02:08:31,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:08:31,546 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 [2023-08-29 02:08:31,579 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 [2023-08-29 02:08:31,619 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 [2023-08-29 02:08:31,667 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 [2023-08-29 02:08:31,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,778 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 [2023-08-29 02:08:31,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,801 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 [2023-08-29 02:08:31,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,825 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 [2023-08-29 02:08:31,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,849 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 [2023-08-29 02:08:31,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:31,905 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 [2023-08-29 02:08:31,935 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:08:31,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:08:33,367 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:08:33,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268191327] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:08:33,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:08:33,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 32 [2023-08-29 02:08:33,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9251425] [2023-08-29 02:08:33,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:08:33,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-29 02:08:33,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:33,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-29 02:08:33,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056 [2023-08-29 02:08:37,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 162 [2023-08-29 02:08:37,134 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) [2023-08-29 02:08:37,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:08:37,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 162 [2023-08-29 02:08:37,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:09:09,247 INFO L130 PetriNetUnfolder]: 18605/40305 cut-off events. [2023-08-29 02:09:09,247 INFO L131 PetriNetUnfolder]: For 1024308/1025351 co-relation queries the response was YES. [2023-08-29 02:09:09,903 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. [2023-08-29 02:09:10,074 INFO L137 encePairwiseOnDemand]: 144/162 looper letters, 2517 selfloop transitions, 1148 changer transitions 17/3777 dead transitions. [2023-08-29 02:09:10,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 3777 transitions, 90290 flow [2023-08-29 02:09:10,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-08-29 02:09:10,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-08-29 02:09:10,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 2241 transitions. [2023-08-29 02:09:10,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49404761904761907 [2023-08-29 02:09:10,076 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 2241 transitions. [2023-08-29 02:09:10,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 2241 transitions. [2023-08-29 02:09:10,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:09:10,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 2241 transitions. [2023-08-29 02:09:10,079 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) [2023-08-29 02:09:10,082 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) [2023-08-29 02:09:10,082 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) [2023-08-29 02:09:10,082 INFO L175 Difference]: Start difference. First operand has 463 places, 2530 transitions, 55667 flow. Second operand 28 states and 2241 transitions. [2023-08-29 02:09:10,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 3777 transitions, 90290 flow [2023-08-29 02:09:23,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 3777 transitions, 86294 flow, removed 1562 selfloop flow, removed 8 redundant places. [2023-08-29 02:09:23,443 INFO L231 Difference]: Finished difference. Result has 505 places, 2971 transitions, 68828 flow [2023-08-29 02:09:23,445 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} [2023-08-29 02:09:23,445 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 464 predicate places. [2023-08-29 02:09:23,446 INFO L495 AbstractCegarLoop]: Abstraction has has 505 places, 2971 transitions, 68828 flow [2023-08-29 02:09:23,446 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) [2023-08-29 02:09:23,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:09:23,446 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] [2023-08-29 02:09:23,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-08-29 02:09:23,648 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 [2023-08-29 02:09:23,648 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)] === [2023-08-29 02:09:23,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:09:23,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1333968473, now seen corresponding path program 2 times [2023-08-29 02:09:23,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:09:23,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096564304] [2023-08-29 02:09:23,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:09:23,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:09:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:24,154 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:09:24,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:09:24,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096564304] [2023-08-29 02:09:24,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096564304] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:09:24,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618146300] [2023-08-29 02:09:24,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:09:24,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:09:24,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:09:24,159 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) [2023-08-29 02:09:24,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-08-29 02:09:24,348 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-29 02:09:24,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:09:24,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 36 conjunts are in the unsatisfiable core [2023-08-29 02:09:24,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:09:24,528 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 [2023-08-29 02:09:24,558 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 [2023-08-29 02:09:24,591 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 [2023-08-29 02:09:24,629 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 [2023-08-29 02:09:24,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:09:24,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:09:24,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:09:24,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:09:24,686 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 [2023-08-29 02:09:24,716 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:09:24,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:09:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:09:25,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618146300] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:09:25,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:09:25,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-29 02:09:25,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857804908] [2023-08-29 02:09:25,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:09:25,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-29 02:09:25,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:09:25,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-29 02:09:25,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2023-08-29 02:09:29,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 162 [2023-08-29 02:09:29,247 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) [2023-08-29 02:09:29,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:09:29,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 162 [2023-08-29 02:09:29,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:10:09,988 INFO L130 PetriNetUnfolder]: 20295/43970 cut-off events. [2023-08-29 02:10:09,989 INFO L131 PetriNetUnfolder]: For 1178066/1179277 co-relation queries the response was YES. [2023-08-29 02:10:11,268 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. [2023-08-29 02:10:11,479 INFO L137 encePairwiseOnDemand]: 143/162 looper letters, 3478 selfloop transitions, 1406 changer transitions 38/5017 dead transitions. [2023-08-29 02:10:11,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 5017 transitions, 117132 flow [2023-08-29 02:10:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-08-29 02:10:11,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2023-08-29 02:10:11,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 4857 transitions. [2023-08-29 02:10:11,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48357228195937874 [2023-08-29 02:10:11,486 INFO L72 ComplementDD]: Start complementDD. Operand 62 states and 4857 transitions. [2023-08-29 02:10:11,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 4857 transitions. [2023-08-29 02:10:11,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:10:11,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 62 states and 4857 transitions. [2023-08-29 02:10:11,491 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) [2023-08-29 02:10:11,498 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) [2023-08-29 02:10:11,499 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) [2023-08-29 02:10:11,499 INFO L175 Difference]: Start difference. First operand has 505 places, 2971 transitions, 68828 flow. Second operand 62 states and 4857 transitions. [2023-08-29 02:10:11,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 5017 transitions, 117132 flow [2023-08-29 02:10:28,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 5017 transitions, 114444 flow, removed 1340 selfloop flow, removed 2 redundant places. [2023-08-29 02:10:28,514 INFO L231 Difference]: Finished difference. Result has 607 places, 3435 transitions, 83281 flow [2023-08-29 02:10:28,515 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} [2023-08-29 02:10:28,516 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 566 predicate places. [2023-08-29 02:10:28,516 INFO L495 AbstractCegarLoop]: Abstraction has has 607 places, 3435 transitions, 83281 flow [2023-08-29 02:10:28,516 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) [2023-08-29 02:10:28,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:28,517 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] [2023-08-29 02:10:28,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-08-29 02:10:28,721 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 [2023-08-29 02:10:28,722 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)] === [2023-08-29 02:10:28,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:28,722 INFO L85 PathProgramCache]: Analyzing trace with hash 30699557, now seen corresponding path program 3 times [2023-08-29 02:10:28,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:28,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028490612] [2023-08-29 02:10:28,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:28,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:29,452 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:10:29,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:29,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028490612] [2023-08-29 02:10:29,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028490612] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:10:29,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415931766] [2023-08-29 02:10:29,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-29 02:10:29,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:10:29,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:10:29,453 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) [2023-08-29 02:10:29,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-08-29 02:10:29,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-08-29 02:10:29,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:10:29,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 61 conjunts are in the unsatisfiable core [2023-08-29 02:10:29,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:10:29,663 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 [2023-08-29 02:10:29,720 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 [2023-08-29 02:10:29,764 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 [2023-08-29 02:10:29,803 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 [2023-08-29 02:10:29,852 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-29 02:10:29,852 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 [2023-08-29 02:10:29,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:29,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:29,911 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 [2023-08-29 02:10:29,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:29,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:29,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:29,930 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 [2023-08-29 02:10:29,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:29,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:29,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:29,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:29,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:29,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:29,994 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 [2023-08-29 02:10:30,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,056 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 [2023-08-29 02:10:30,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,173 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 [2023-08-29 02:10:30,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:30,250 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 [2023-08-29 02:10:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-08-29 02:10:34,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:11:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-08-29 02:11:09,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415931766] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-29 02:11:09,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-29 02:11:09,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11, 11] total 32 [2023-08-29 02:11:09,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560854289] [2023-08-29 02:11:09,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:11:09,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 02:11:09,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:11:09,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 02:11:09,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=887, Unknown=5, NotChecked=0, Total=1056 [2023-08-29 02:11:11,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:13,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:15,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:17,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:19,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:21,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:23,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:26,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:28,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:30,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:32,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:34,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:36,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:38,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:40,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:42,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:44,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:47,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:49,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:51,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:53,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:55,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:57,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:59,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:01,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:03,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:05,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:07,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:09,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:11,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:13,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:15,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:17,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:19,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:21,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:23,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:25,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:25,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 162 [2023-08-29 02:12:25,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 3435 transitions, 83281 flow. Second operand has 13 states, 13 states have (on average 57.76923076923077) internal successors, (751), 13 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:25,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:12:25,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 162 [2023-08-29 02:12:25,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:12:31,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:33,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:35,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:38,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:40,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:42,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:44,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:46,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:48,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:50,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:52,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:54,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:55,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:57,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:12:59,215 WARN L861 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#race| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|)) (.cse15 (+ |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| 1)) (.cse19 (+ |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| 2))) (let ((.cse6 (store |c_#race| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (store .cse0 .cse15 0) .cse19 0)))) (let ((.cse7 (select .cse6 |c_~#cache~0.base|)) (.cse2 (select |c_#pthreadsMutex| |c_~#cache~0.base|)) (.cse1 (+ |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| 3)) (.cse11 (select |c_#race| |c_~#cache~0.base|))) (and (= (select .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= (select .cse0 .cse1) 0) (forall ((|ULTIMATE.start_main_~i~2#1| Int)) (let ((.cse3 (* |ULTIMATE.start_main_~i~2#1| 28))) (or (not (= (select .cse2 (+ .cse3 |c_~#cache~0.offset| 4)) 0)) (forall ((v_ArrVal_2428 Int)) (= (select (select (let ((.cse4 (let ((.cse5 (store .cse6 |c_~#cache~0.base| (store (store (store .cse7 (+ .cse3 |c_~#cache~0.offset| 1) 0) (+ .cse3 2 |c_~#cache~0.offset|) 0) (+ .cse3 3 |c_~#cache~0.offset|) 0)))) (store .cse5 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse5 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse1 0))))) (store .cse4 |c_~#cache~0.base| (store (select .cse4 |c_~#cache~0.base|) (+ .cse3 |c_~#cache~0.offset|) v_ArrVal_2428))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) 0))))) (forall ((|ULTIMATE.start_main_~i~2#1| Int)) (let ((.cse9 (* |ULTIMATE.start_main_~i~2#1| 28))) (or (forall ((v_ArrVal_2428 Int)) (= (select (select (let ((.cse8 (let ((.cse10 (store |c_#race| |c_~#cache~0.base| (store (store (store .cse11 (+ .cse9 |c_~#cache~0.offset| 1) 0) (+ .cse9 2 |c_~#cache~0.offset|) 0) (+ .cse9 3 |c_~#cache~0.offset|) 0)))) (store .cse10 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse10 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse1 0))))) (store .cse8 |c_~#cache~0.base| (store (select .cse8 |c_~#cache~0.base|) (+ .cse9 |c_~#cache~0.offset|) v_ArrVal_2428))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse1) 0)) (not (= (select .cse2 (+ .cse9 |c_~#cache~0.offset| 4)) 0))))) (forall ((|ULTIMATE.start_main_~i~2#1| Int)) (let ((.cse13 (* |ULTIMATE.start_main_~i~2#1| 28))) (or (forall ((v_ArrVal_2428 Int)) (= (select (select (let ((.cse12 (let ((.cse14 (store |c_#race| |c_~#cache~0.base| (store (store (store .cse11 (+ .cse13 |c_~#cache~0.offset| 1) 0) (+ .cse13 2 |c_~#cache~0.offset|) 0) (+ .cse13 3 |c_~#cache~0.offset|) 0)))) (store .cse14 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse14 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse1 0))))) (store .cse12 |c_~#cache~0.base| (store (select .cse12 |c_~#cache~0.base|) (+ .cse13 |c_~#cache~0.offset|) v_ArrVal_2428))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) 0)) (not (= (select .cse2 (+ .cse13 |c_~#cache~0.offset| 4)) 0))))) (= (select .cse0 .cse15) 0) (forall ((|ULTIMATE.start_main_~i~2#1| Int)) (let ((.cse17 (* |ULTIMATE.start_main_~i~2#1| 28))) (or (forall ((v_ArrVal_2428 Int)) (= (select (select (let ((.cse16 (let ((.cse18 (store .cse6 |c_~#cache~0.base| (store (store (store .cse7 (+ .cse17 |c_~#cache~0.offset| 1) 0) (+ .cse17 2 |c_~#cache~0.offset|) 0) (+ .cse17 3 |c_~#cache~0.offset|) 0)))) (store .cse18 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse18 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse1 0))))) (store .cse16 |c_~#cache~0.base| (store (select .cse16 |c_~#cache~0.base|) (+ .cse17 |c_~#cache~0.offset|) v_ArrVal_2428))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse19) 0)) (not (= (select .cse2 (+ .cse17 |c_~#cache~0.offset| 4)) 0))))) (forall ((|ULTIMATE.start_main_~i~2#1| Int)) (let ((.cse20 (* |ULTIMATE.start_main_~i~2#1| 28))) (or (not (= (select .cse2 (+ .cse20 |c_~#cache~0.offset| 4)) 0)) (forall ((v_ArrVal_2428 Int)) (= (select (select (let ((.cse21 (let ((.cse22 (store .cse6 |c_~#cache~0.base| (store (store (store .cse7 (+ .cse20 |c_~#cache~0.offset| 1) 0) (+ .cse20 2 |c_~#cache~0.offset|) 0) (+ .cse20 3 |c_~#cache~0.offset|) 0)))) (store .cse22 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse22 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse1 0))))) (store .cse21 |c_~#cache~0.base| (store (select .cse21 |c_~#cache~0.base|) (+ .cse20 |c_~#cache~0.offset|) v_ArrVal_2428))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse15) 0))))) (forall ((|ULTIMATE.start_main_~i~2#1| Int)) (let ((.cse24 (* |ULTIMATE.start_main_~i~2#1| 28))) (or (forall ((v_ArrVal_2428 Int)) (= (select (select (let ((.cse23 (let ((.cse25 (store |c_#race| |c_~#cache~0.base| (store (store (store .cse11 (+ .cse24 |c_~#cache~0.offset| 1) 0) (+ .cse24 2 |c_~#cache~0.offset|) 0) (+ .cse24 3 |c_~#cache~0.offset|) 0)))) (store .cse25 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse25 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse1 0))))) (store .cse23 |c_~#cache~0.base| (store (select .cse23 |c_~#cache~0.base|) (+ .cse24 |c_~#cache~0.offset|) v_ArrVal_2428))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse19) 0)) (not (= (select .cse2 (+ .cse24 |c_~#cache~0.offset| 4)) 0))))) (forall ((|ULTIMATE.start_main_~i~2#1| Int)) (let ((.cse27 (* |ULTIMATE.start_main_~i~2#1| 28))) (or (forall ((v_ArrVal_2428 Int)) (= (select (select (let ((.cse26 (let ((.cse28 (store .cse6 |c_~#cache~0.base| (store (store (store .cse7 (+ .cse27 |c_~#cache~0.offset| 1) 0) (+ .cse27 2 |c_~#cache~0.offset|) 0) (+ .cse27 3 |c_~#cache~0.offset|) 0)))) (store .cse28 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse28 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse1 0))))) (store .cse26 |c_~#cache~0.base| (store (select .cse26 |c_~#cache~0.base|) (+ .cse27 |c_~#cache~0.offset|) v_ArrVal_2428))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse1) 0)) (not (= (select .cse2 (+ .cse27 |c_~#cache~0.offset| 4)) 0))))) (= (select .cse0 .cse19) 0) (forall ((|ULTIMATE.start_main_~i~2#1| Int)) (let ((.cse29 (* |ULTIMATE.start_main_~i~2#1| 28))) (or (not (= (select .cse2 (+ .cse29 |c_~#cache~0.offset| 4)) 0)) (forall ((v_ArrVal_2428 Int)) (= (select (select (let ((.cse30 (let ((.cse31 (store |c_#race| |c_~#cache~0.base| (store (store (store .cse11 (+ .cse29 |c_~#cache~0.offset| 1) 0) (+ .cse29 2 |c_~#cache~0.offset|) 0) (+ .cse29 3 |c_~#cache~0.offset|) 0)))) (store .cse31 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse31 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse1 0))))) (store .cse30 |c_~#cache~0.base| (store (select .cse30 |c_~#cache~0.base|) (+ .cse29 |c_~#cache~0.offset|) v_ArrVal_2428))) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) .cse15) 0))))))))) is different from true [2023-08-29 02:13:04,884 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] [2023-08-29 02:13:07,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:09,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:12,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:13,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:15,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:16,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:19,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:21,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:23,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:25,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:27,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:30,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:32,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:34,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:36,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:38,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:40,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:42,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:44,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:50,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:53,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:55,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:57,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:59,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:01,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:03,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:05,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:07,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:09,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:11,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:14,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:16,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:18,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:20,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:23,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:25,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:27,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:29,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:31,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:33,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] Killed by 15