./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --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 01:57:57,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:57:57,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:57:57,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:57:57,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:57:57,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:57:57,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:57:57,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:57:57,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:57:57,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:57:57,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:57:57,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:57:57,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:57:57,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:57:57,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:57:57,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:57:57,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:57:57,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:57:57,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:57:57,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:57:57,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:57:57,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:57:57,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:57:57,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:57:57,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:57:57,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:57:57,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:57:57,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:57:57,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:57:57,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:57:57,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:57:57,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:57:57,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:57:57,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:57:57,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:57:57,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:57:57,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:57:57,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:57:57,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:57:57,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:57:57,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:57:57,238 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:57:57,272 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:57:57,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:57:57,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:57:57,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:57:57,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:57:57,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:57:57,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:57:57,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:57:57,276 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:57:57,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:57:57,277 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:57:57,277 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:57:57,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:57:57,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:57:57,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:57:57,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:57:57,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:57:57,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:57:57,278 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:57:57,279 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:57:57,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:57:57,279 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:57:57,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:57:57,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:57:57,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:57:57,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:57:57,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:57:57,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:57:57,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:57:57,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:57:57,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:57:57,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:57:57,281 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:57:57,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:57:57,282 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:57:57,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:57:57,282 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:57:57,282 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:57:57,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:57:57,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:57:57,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:57:57,603 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:57:57,603 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:57:57,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2023-08-29 01:57:58,844 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:57:59,132 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:57:59,133 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2023-08-29 01:57:59,147 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae1128923/44b9dc91c11842e1810d8356703a643c/FLAG7e2180f6b [2023-08-29 01:57:59,162 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae1128923/44b9dc91c11842e1810d8356703a643c [2023-08-29 01:57:59,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:57:59,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:57:59,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:57:59,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:57:59,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:57:59,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40afa367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59, skipping insertion in model container [2023-08-29 01:57:59,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:57:59,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:57:59,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:57:59,631 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:57:59,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:57:59,740 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:57:59,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59 WrapperNode [2023-08-29 01:57:59,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:57:59,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:57:59,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:57:59,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:57:59,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,819 INFO L138 Inliner]: procedures = 263, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2023-08-29 01:57:59,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:57:59,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:57:59,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:57:59,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:57:59,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,864 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:57:59,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:57:59,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:57:59,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:57:59,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59" (1/1) ... [2023-08-29 01:57:59,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:57:59,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:57:59,902 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 01:57:59,929 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 01:57:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:57:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:57:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 01:57:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:57:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 01:57:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:57:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 01:57:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 01:57:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:57:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:57:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:57:59,945 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 01:58:00,121 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:58:00,123 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:58:00,318 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:58:00,333 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:58:00,333 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 01:58:00,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:58:00 BoogieIcfgContainer [2023-08-29 01:58:00,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:58:00,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:58:00,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:58:00,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:58:00,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:57:59" (1/3) ... [2023-08-29 01:58:00,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54df03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:58:00, skipping insertion in model container [2023-08-29 01:58:00,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:59" (2/3) ... [2023-08-29 01:58:00,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54df03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:58:00, skipping insertion in model container [2023-08-29 01:58:00,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:58:00" (3/3) ... [2023-08-29 01:58:00,373 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2023-08-29 01:58:00,382 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:58:00,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:58:00,392 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-29 01:58:00,392 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:58:00,496 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 01:58:00,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 99 transitions, 206 flow [2023-08-29 01:58:00,606 INFO L130 PetriNetUnfolder]: 0/98 cut-off events. [2023-08-29 01:58:00,607 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 01:58:00,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 0/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-29 01:58:00,610 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 99 transitions, 206 flow [2023-08-29 01:58:00,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 91 transitions, 185 flow [2023-08-29 01:58:00,620 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:58:00,638 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 91 transitions, 185 flow [2023-08-29 01:58:00,645 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 91 transitions, 185 flow [2023-08-29 01:58:00,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 91 transitions, 185 flow [2023-08-29 01:58:00,674 INFO L130 PetriNetUnfolder]: 0/91 cut-off events. [2023-08-29 01:58:00,676 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:00,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 0/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 01:58:00,679 INFO L119 LiptonReduction]: Number of co-enabled transitions 1836 [2023-08-29 01:58:03,273 INFO L134 LiptonReduction]: Checked pairs total: 10947 [2023-08-29 01:58:03,273 INFO L136 LiptonReduction]: Total number of compositions: 50 [2023-08-29 01:58:03,291 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:58:03,302 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;@749f0219, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:58:03,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-29 01:58:03,312 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-29 01:58:03,312 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:03,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:03,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:03,314 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:03,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:03,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1539204769, now seen corresponding path program 1 times [2023-08-29 01:58:03,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:03,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859007776] [2023-08-29 01:58:03,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:03,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:03,951 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 01:58:03,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:03,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859007776] [2023-08-29 01:58:03,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859007776] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:03,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:03,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:58:03,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346020719] [2023-08-29 01:58:03,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:03,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:58:03,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:03,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:58:03,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:58:04,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 149 [2023-08-29 01:58:04,216 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states 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 01:58:04,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:04,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 149 [2023-08-29 01:58:04,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:04,469 INFO L130 PetriNetUnfolder]: 182/519 cut-off events. [2023-08-29 01:58:04,469 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:04,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 519 events. 182/519 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2536 event pairs, 83 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 912. Up to 289 conditions per place. [2023-08-29 01:58:04,481 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 51 selfloop transitions, 22 changer transitions 0/87 dead transitions. [2023-08-29 01:58:04,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 87 transitions, 323 flow [2023-08-29 01:58:04,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:58:04,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:58:04,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 554 transitions. [2023-08-29 01:58:04,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6196868008948546 [2023-08-29 01:58:04,503 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 554 transitions. [2023-08-29 01:58:04,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 554 transitions. [2023-08-29 01:58:04,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:04,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 554 transitions. [2023-08-29 01:58:04,516 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 01:58:04,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states 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 01:58:04,523 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states 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 01:58:04,525 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 85 flow. Second operand 6 states and 554 transitions. [2023-08-29 01:58:04,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 87 transitions, 323 flow [2023-08-29 01:58:04,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 87 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:58:04,531 INFO L231 Difference]: Finished difference. Result has 54 places, 62 transitions, 234 flow [2023-08-29 01:58:04,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=234, PETRI_PLACES=54, PETRI_TRANSITIONS=62} [2023-08-29 01:58:04,537 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2023-08-29 01:58:04,538 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 62 transitions, 234 flow [2023-08-29 01:58:04,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states 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 01:58:04,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:04,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:04,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:58:04,539 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:04,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:04,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1776116605, now seen corresponding path program 1 times [2023-08-29 01:58:04,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:04,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871642671] [2023-08-29 01:58:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:04,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:04,778 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 01:58:04,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:04,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871642671] [2023-08-29 01:58:04,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871642671] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:04,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:04,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:58:04,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355395972] [2023-08-29 01:58:04,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:04,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:58:04,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:04,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:58:04,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:58:04,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 149 [2023-08-29 01:58:04,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 62 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states 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 01:58:04,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:04,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 149 [2023-08-29 01:58:04,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:05,065 INFO L130 PetriNetUnfolder]: 214/619 cut-off events. [2023-08-29 01:58:05,066 INFO L131 PetriNetUnfolder]: For 117/120 co-relation queries the response was YES. [2023-08-29 01:58:05,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 619 events. 214/619 cut-off events. For 117/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3221 event pairs, 86 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 1292. Up to 348 conditions per place. [2023-08-29 01:58:05,069 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 60 selfloop transitions, 26 changer transitions 0/104 dead transitions. [2023-08-29 01:58:05,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 104 transitions, 508 flow [2023-08-29 01:58:05,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:58:05,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:58:05,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2023-08-29 01:58:05,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6152125279642058 [2023-08-29 01:58:05,072 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 550 transitions. [2023-08-29 01:58:05,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 550 transitions. [2023-08-29 01:58:05,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:05,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 550 transitions. [2023-08-29 01:58:05,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 0 states have call successors, (0), 0 states 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 01:58:05,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states 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 01:58:05,076 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states 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 01:58:05,077 INFO L175 Difference]: Start difference. First operand has 54 places, 62 transitions, 234 flow. Second operand 6 states and 550 transitions. [2023-08-29 01:58:05,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 104 transitions, 508 flow [2023-08-29 01:58:05,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 104 transitions, 508 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:58:05,082 INFO L231 Difference]: Finished difference. Result has 64 places, 83 transitions, 418 flow [2023-08-29 01:58:05,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=418, PETRI_PLACES=64, PETRI_TRANSITIONS=83} [2023-08-29 01:58:05,083 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 19 predicate places. [2023-08-29 01:58:05,083 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 83 transitions, 418 flow [2023-08-29 01:58:05,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states 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 01:58:05,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:05,084 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:05,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:58:05,084 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:05,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:05,085 INFO L85 PathProgramCache]: Analyzing trace with hash 389650683, now seen corresponding path program 1 times [2023-08-29 01:58:05,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:05,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354799161] [2023-08-29 01:58:05,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:05,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:05,283 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 01:58:05,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:05,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354799161] [2023-08-29 01:58:05,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354799161] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:05,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:05,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:58:05,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462941758] [2023-08-29 01:58:05,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:05,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:58:05,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:05,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:58:05,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:58:05,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 149 [2023-08-29 01:58:05,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 83 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states 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 01:58:05,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:05,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 149 [2023-08-29 01:58:05,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:05,577 INFO L130 PetriNetUnfolder]: 416/961 cut-off events. [2023-08-29 01:58:05,577 INFO L131 PetriNetUnfolder]: For 608/611 co-relation queries the response was YES. [2023-08-29 01:58:05,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2669 conditions, 961 events. 416/961 cut-off events. For 608/611 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4872 event pairs, 176 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 2651. Up to 740 conditions per place. [2023-08-29 01:58:05,585 INFO L137 encePairwiseOnDemand]: 134/149 looper letters, 90 selfloop transitions, 53 changer transitions 0/150 dead transitions. [2023-08-29 01:58:05,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 150 transitions, 964 flow [2023-08-29 01:58:05,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:58:05,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:58:05,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 513 transitions. [2023-08-29 01:58:05,587 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5738255033557047 [2023-08-29 01:58:05,588 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 513 transitions. [2023-08-29 01:58:05,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 513 transitions. [2023-08-29 01:58:05,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:05,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 513 transitions. [2023-08-29 01:58:05,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states 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 01:58:05,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states 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 01:58:05,592 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states 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 01:58:05,592 INFO L175 Difference]: Start difference. First operand has 64 places, 83 transitions, 418 flow. Second operand 6 states and 513 transitions. [2023-08-29 01:58:05,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 150 transitions, 964 flow [2023-08-29 01:58:05,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 150 transitions, 964 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:58:05,600 INFO L231 Difference]: Finished difference. Result has 74 places, 130 transitions, 892 flow [2023-08-29 01:58:05,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=892, PETRI_PLACES=74, PETRI_TRANSITIONS=130} [2023-08-29 01:58:05,601 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 29 predicate places. [2023-08-29 01:58:05,601 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 130 transitions, 892 flow [2023-08-29 01:58:05,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states 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 01:58:05,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:05,602 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:05,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:58:05,602 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:05,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:05,603 INFO L85 PathProgramCache]: Analyzing trace with hash 195939132, now seen corresponding path program 1 times [2023-08-29 01:58:05,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:05,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569941395] [2023-08-29 01:58:05,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:05,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:05,817 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 01:58:05,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:05,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569941395] [2023-08-29 01:58:05,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569941395] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:05,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:05,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:58:05,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639337700] [2023-08-29 01:58:05,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:05,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:58:05,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:05,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:58:05,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:58:05,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 149 [2023-08-29 01:58:05,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 130 transitions, 892 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states 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 01:58:05,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:05,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 149 [2023-08-29 01:58:05,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:06,243 INFO L130 PetriNetUnfolder]: 527/1189 cut-off events. [2023-08-29 01:58:06,243 INFO L131 PetriNetUnfolder]: For 1459/1476 co-relation queries the response was YES. [2023-08-29 01:58:06,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4006 conditions, 1189 events. 527/1189 cut-off events. For 1459/1476 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6290 event pairs, 151 based on Foata normal form. 0/1138 useless extension candidates. Maximal degree in co-relation 3983. Up to 901 conditions per place. [2023-08-29 01:58:06,252 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 138 selfloop transitions, 83 changer transitions 0/228 dead transitions. [2023-08-29 01:58:06,253 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 228 transitions, 1804 flow [2023-08-29 01:58:06,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:58:06,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:58:06,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 533 transitions. [2023-08-29 01:58:06,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5961968680089486 [2023-08-29 01:58:06,266 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 533 transitions. [2023-08-29 01:58:06,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 533 transitions. [2023-08-29 01:58:06,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:06,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 533 transitions. [2023-08-29 01:58:06,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.83333333333333) internal successors, (533), 6 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:58:06,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states 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 01:58:06,270 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states 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 01:58:06,271 INFO L175 Difference]: Start difference. First operand has 74 places, 130 transitions, 892 flow. Second operand 6 states and 533 transitions. [2023-08-29 01:58:06,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 228 transitions, 1804 flow [2023-08-29 01:58:06,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 228 transitions, 1748 flow, removed 28 selfloop flow, removed 0 redundant places. [2023-08-29 01:58:06,284 INFO L231 Difference]: Finished difference. Result has 84 places, 199 transitions, 1600 flow [2023-08-29 01:58:06,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1600, PETRI_PLACES=84, PETRI_TRANSITIONS=199} [2023-08-29 01:58:06,285 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2023-08-29 01:58:06,285 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 199 transitions, 1600 flow [2023-08-29 01:58:06,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states 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 01:58:06,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:06,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:06,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 01:58:06,286 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:06,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:06,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1709265970, now seen corresponding path program 1 times [2023-08-29 01:58:06,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:06,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800726451] [2023-08-29 01:58:06,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:06,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:06,665 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 01:58:06,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:06,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800726451] [2023-08-29 01:58:06,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800726451] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:06,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:06,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:06,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399641004] [2023-08-29 01:58:06,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:06,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:06,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:06,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:06,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:07,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 01:58:07,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 199 transitions, 1600 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:07,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:07,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 01:58:07,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:07,813 INFO L130 PetriNetUnfolder]: 803/1970 cut-off events. [2023-08-29 01:58:07,814 INFO L131 PetriNetUnfolder]: For 4043/4117 co-relation queries the response was YES. [2023-08-29 01:58:07,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7888 conditions, 1970 events. 803/1970 cut-off events. For 4043/4117 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 13288 event pairs, 71 based on Foata normal form. 24/1953 useless extension candidates. Maximal degree in co-relation 7860. Up to 694 conditions per place. [2023-08-29 01:58:07,831 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 301 selfloop transitions, 64 changer transitions 0/418 dead transitions. [2023-08-29 01:58:07,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 418 transitions, 4038 flow [2023-08-29 01:58:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 01:58:07,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 01:58:07,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2023-08-29 01:58:07,834 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5784014643075046 [2023-08-29 01:58:07,834 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2023-08-29 01:58:07,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2023-08-29 01:58:07,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:07,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2023-08-29 01:58:07,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.18181818181819) internal successors, (948), 11 states have internal predecessors, (948), 0 states have call successors, (0), 0 states 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 01:58:07,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states 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 01:58:07,840 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states 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 01:58:07,840 INFO L175 Difference]: Start difference. First operand has 84 places, 199 transitions, 1600 flow. Second operand 11 states and 948 transitions. [2023-08-29 01:58:07,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 418 transitions, 4038 flow [2023-08-29 01:58:07,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 418 transitions, 3892 flow, removed 73 selfloop flow, removed 0 redundant places. [2023-08-29 01:58:07,870 INFO L231 Difference]: Finished difference. Result has 101 places, 252 transitions, 2332 flow [2023-08-29 01:58:07,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1518, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2332, PETRI_PLACES=101, PETRI_TRANSITIONS=252} [2023-08-29 01:58:07,871 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 56 predicate places. [2023-08-29 01:58:07,871 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 252 transitions, 2332 flow [2023-08-29 01:58:07,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:07,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:07,872 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:07,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 01:58:07,872 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:07,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:07,873 INFO L85 PathProgramCache]: Analyzing trace with hash 191672506, now seen corresponding path program 2 times [2023-08-29 01:58:07,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:07,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821334258] [2023-08-29 01:58:07,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:07,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:08,214 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 01:58:08,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:08,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821334258] [2023-08-29 01:58:08,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821334258] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:08,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:08,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:08,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683769213] [2023-08-29 01:58:08,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:08,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:08,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:08,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:08,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:08,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 01:58:08,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 252 transitions, 2332 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:08,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:08,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 01:58:08,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:09,200 INFO L130 PetriNetUnfolder]: 855/2074 cut-off events. [2023-08-29 01:58:09,200 INFO L131 PetriNetUnfolder]: For 6273/6354 co-relation queries the response was YES. [2023-08-29 01:58:09,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8901 conditions, 2074 events. 855/2074 cut-off events. For 6273/6354 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 14096 event pairs, 91 based on Foata normal form. 16/2045 useless extension candidates. Maximal degree in co-relation 8864. Up to 1237 conditions per place. [2023-08-29 01:58:09,221 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 181 selfloop transitions, 88 changer transitions 0/322 dead transitions. [2023-08-29 01:58:09,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 322 transitions, 3421 flow [2023-08-29 01:58:09,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 01:58:09,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 01:58:09,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 780 transitions. [2023-08-29 01:58:09,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5816554809843401 [2023-08-29 01:58:09,225 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 780 transitions. [2023-08-29 01:58:09,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 780 transitions. [2023-08-29 01:58:09,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:09,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 780 transitions. [2023-08-29 01:58:09,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.66666666666667) internal successors, (780), 9 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 01:58:09,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:58:09,229 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:58:09,230 INFO L175 Difference]: Start difference. First operand has 101 places, 252 transitions, 2332 flow. Second operand 9 states and 780 transitions. [2023-08-29 01:58:09,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 322 transitions, 3421 flow [2023-08-29 01:58:09,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 322 transitions, 3416 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-29 01:58:09,310 INFO L231 Difference]: Finished difference. Result has 111 places, 273 transitions, 2980 flow [2023-08-29 01:58:09,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2327, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2980, PETRI_PLACES=111, PETRI_TRANSITIONS=273} [2023-08-29 01:58:09,311 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 66 predicate places. [2023-08-29 01:58:09,311 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 273 transitions, 2980 flow [2023-08-29 01:58:09,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:09,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:09,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:09,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 01:58:09,313 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:09,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:09,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1081218985, now seen corresponding path program 1 times [2023-08-29 01:58:09,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:09,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378862799] [2023-08-29 01:58:09,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:09,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:09,572 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 01:58:09,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:09,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378862799] [2023-08-29 01:58:09,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378862799] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:09,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:09,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:09,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345192826] [2023-08-29 01:58:09,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:09,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:09,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:09,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:09,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:10,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 01:58:10,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 273 transitions, 2980 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:10,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:10,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 01:58:10,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:10,644 INFO L130 PetriNetUnfolder]: 929/2221 cut-off events. [2023-08-29 01:58:10,644 INFO L131 PetriNetUnfolder]: For 9139/9187 co-relation queries the response was YES. [2023-08-29 01:58:10,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10018 conditions, 2221 events. 929/2221 cut-off events. For 9139/9187 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 15036 event pairs, 83 based on Foata normal form. 16/2190 useless extension candidates. Maximal degree in co-relation 9977. Up to 797 conditions per place. [2023-08-29 01:58:10,669 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 336 selfloop transitions, 70 changer transitions 0/489 dead transitions. [2023-08-29 01:58:10,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 489 transitions, 5479 flow [2023-08-29 01:58:10,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:10,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:10,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 867 transitions. [2023-08-29 01:58:10,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5818791946308725 [2023-08-29 01:58:10,673 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 867 transitions. [2023-08-29 01:58:10,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 867 transitions. [2023-08-29 01:58:10,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:10,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 867 transitions. [2023-08-29 01:58:10,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.7) internal successors, (867), 10 states have internal predecessors, (867), 0 states have call successors, (0), 0 states 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 01:58:10,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:10,679 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:10,679 INFO L175 Difference]: Start difference. First operand has 111 places, 273 transitions, 2980 flow. Second operand 10 states and 867 transitions. [2023-08-29 01:58:10,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 489 transitions, 5479 flow [2023-08-29 01:58:10,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 489 transitions, 5410 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-29 01:58:10,726 INFO L231 Difference]: Finished difference. Result has 121 places, 326 transitions, 3779 flow [2023-08-29 01:58:10,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2924, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3779, PETRI_PLACES=121, PETRI_TRANSITIONS=326} [2023-08-29 01:58:10,727 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 76 predicate places. [2023-08-29 01:58:10,727 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 326 transitions, 3779 flow [2023-08-29 01:58:10,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:10,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:10,728 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:10,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 01:58:10,728 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:10,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:10,729 INFO L85 PathProgramCache]: Analyzing trace with hash 842864954, now seen corresponding path program 3 times [2023-08-29 01:58:10,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:10,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286413528] [2023-08-29 01:58:10,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:10,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:11,068 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 01:58:11,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:11,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286413528] [2023-08-29 01:58:11,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286413528] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:11,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:11,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:11,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128435705] [2023-08-29 01:58:11,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:11,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:11,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:11,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:11,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:11,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 01:58:11,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 326 transitions, 3779 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:11,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:11,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 01:58:11,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:12,251 INFO L130 PetriNetUnfolder]: 1008/2408 cut-off events. [2023-08-29 01:58:12,251 INFO L131 PetriNetUnfolder]: For 12584/12639 co-relation queries the response was YES. [2023-08-29 01:58:12,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11484 conditions, 2408 events. 1008/2408 cut-off events. For 12584/12639 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 16675 event pairs, 101 based on Foata normal form. 14/2368 useless extension candidates. Maximal degree in co-relation 11437. Up to 1349 conditions per place. [2023-08-29 01:58:12,284 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 219 selfloop transitions, 117 changer transitions 0/419 dead transitions. [2023-08-29 01:58:12,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 419 transitions, 5320 flow [2023-08-29 01:58:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:12,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:12,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 866 transitions. [2023-08-29 01:58:12,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5812080536912752 [2023-08-29 01:58:12,291 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 866 transitions. [2023-08-29 01:58:12,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 866 transitions. [2023-08-29 01:58:12,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:12,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 866 transitions. [2023-08-29 01:58:12,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.6) internal successors, (866), 10 states have internal predecessors, (866), 0 states have call successors, (0), 0 states 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 01:58:12,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:12,297 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:12,297 INFO L175 Difference]: Start difference. First operand has 121 places, 326 transitions, 3779 flow. Second operand 10 states and 866 transitions. [2023-08-29 01:58:12,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 419 transitions, 5320 flow [2023-08-29 01:58:12,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 419 transitions, 5309 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 01:58:12,359 INFO L231 Difference]: Finished difference. Result has 133 places, 358 transitions, 4795 flow [2023-08-29 01:58:12,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=3772, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4795, PETRI_PLACES=133, PETRI_TRANSITIONS=358} [2023-08-29 01:58:12,362 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 88 predicate places. [2023-08-29 01:58:12,363 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 358 transitions, 4795 flow [2023-08-29 01:58:12,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:12,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:12,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:12,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 01:58:12,364 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:12,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:12,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2076080314, now seen corresponding path program 4 times [2023-08-29 01:58:12,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:12,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127888379] [2023-08-29 01:58:12,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:12,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:12,625 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 01:58:12,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:12,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127888379] [2023-08-29 01:58:12,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127888379] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:12,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:12,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:12,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99933253] [2023-08-29 01:58:12,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:12,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:12,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:12,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:12,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:13,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 01:58:13,034 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 358 transitions, 4795 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:13,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:13,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 01:58:13,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:13,783 INFO L130 PetriNetUnfolder]: 1043/2497 cut-off events. [2023-08-29 01:58:13,783 INFO L131 PetriNetUnfolder]: For 18636/18775 co-relation queries the response was YES. [2023-08-29 01:58:13,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12691 conditions, 2497 events. 1043/2497 cut-off events. For 18636/18775 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 17550 event pairs, 97 based on Foata normal form. 45/2483 useless extension candidates. Maximal degree in co-relation 12639. Up to 733 conditions per place. [2023-08-29 01:58:13,810 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 352 selfloop transitions, 103 changer transitions 0/538 dead transitions. [2023-08-29 01:58:13,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 538 transitions, 7165 flow [2023-08-29 01:58:13,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:13,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 872 transitions. [2023-08-29 01:58:13,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5852348993288591 [2023-08-29 01:58:13,814 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 872 transitions. [2023-08-29 01:58:13,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 872 transitions. [2023-08-29 01:58:13,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:13,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 872 transitions. [2023-08-29 01:58:13,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.2) internal successors, (872), 10 states have internal predecessors, (872), 0 states have call successors, (0), 0 states 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 01:58:13,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:13,820 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:13,820 INFO L175 Difference]: Start difference. First operand has 133 places, 358 transitions, 4795 flow. Second operand 10 states and 872 transitions. [2023-08-29 01:58:13,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 538 transitions, 7165 flow [2023-08-29 01:58:13,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 538 transitions, 7077 flow, removed 18 selfloop flow, removed 4 redundant places. [2023-08-29 01:58:13,902 INFO L231 Difference]: Finished difference. Result has 145 places, 384 transitions, 5487 flow [2023-08-29 01:58:13,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4722, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5487, PETRI_PLACES=145, PETRI_TRANSITIONS=384} [2023-08-29 01:58:13,904 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 100 predicate places. [2023-08-29 01:58:13,904 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 384 transitions, 5487 flow [2023-08-29 01:58:13,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:13,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:13,905 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:13,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 01:58:13,905 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:13,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:13,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1402981190, now seen corresponding path program 5 times [2023-08-29 01:58:13,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:13,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404286942] [2023-08-29 01:58:13,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:13,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:14,189 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 01:58:14,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:14,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404286942] [2023-08-29 01:58:14,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404286942] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:14,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:14,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:14,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65641572] [2023-08-29 01:58:14,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:14,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:14,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:14,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:14,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:14,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 01:58:14,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 384 transitions, 5487 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:14,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:14,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 01:58:14,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:15,380 INFO L130 PetriNetUnfolder]: 1138/2727 cut-off events. [2023-08-29 01:58:15,380 INFO L131 PetriNetUnfolder]: For 27774/27913 co-relation queries the response was YES. [2023-08-29 01:58:15,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14788 conditions, 2727 events. 1138/2727 cut-off events. For 27774/27913 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 19577 event pairs, 115 based on Foata normal form. 37/2694 useless extension candidates. Maximal degree in co-relation 14729. Up to 1444 conditions per place. [2023-08-29 01:58:15,407 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 267 selfloop transitions, 145 changer transitions 0/495 dead transitions. [2023-08-29 01:58:15,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 495 transitions, 7537 flow [2023-08-29 01:58:15,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:15,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:15,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 868 transitions. [2023-08-29 01:58:15,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5825503355704698 [2023-08-29 01:58:15,410 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 868 transitions. [2023-08-29 01:58:15,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 868 transitions. [2023-08-29 01:58:15,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:15,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 868 transitions. [2023-08-29 01:58:15,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.8) internal successors, (868), 10 states have internal predecessors, (868), 0 states have call successors, (0), 0 states 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 01:58:15,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:15,416 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:15,416 INFO L175 Difference]: Start difference. First operand has 145 places, 384 transitions, 5487 flow. Second operand 10 states and 868 transitions. [2023-08-29 01:58:15,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 495 transitions, 7537 flow [2023-08-29 01:58:15,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 495 transitions, 7436 flow, removed 48 selfloop flow, removed 2 redundant places. [2023-08-29 01:58:15,500 INFO L231 Difference]: Finished difference. Result has 158 places, 425 transitions, 6837 flow [2023-08-29 01:58:15,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=5396, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6837, PETRI_PLACES=158, PETRI_TRANSITIONS=425} [2023-08-29 01:58:15,501 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 113 predicate places. [2023-08-29 01:58:15,501 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 425 transitions, 6837 flow [2023-08-29 01:58:15,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:15,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:15,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:15,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 01:58:15,502 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:15,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:15,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1212173786, now seen corresponding path program 1 times [2023-08-29 01:58:15,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:15,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388314572] [2023-08-29 01:58:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:15,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:15,759 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 01:58:15,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:15,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388314572] [2023-08-29 01:58:15,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388314572] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:15,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:15,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:15,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40757362] [2023-08-29 01:58:15,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:15,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:15,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:15,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:15,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:16,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 01:58:16,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 425 transitions, 6837 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:16,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:16,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 01:58:16,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:17,245 INFO L130 PetriNetUnfolder]: 1710/3768 cut-off events. [2023-08-29 01:58:17,245 INFO L131 PetriNetUnfolder]: For 40498/40556 co-relation queries the response was YES. [2023-08-29 01:58:17,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21365 conditions, 3768 events. 1710/3768 cut-off events. For 40498/40556 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 26646 event pairs, 355 based on Foata normal form. 23/3731 useless extension candidates. Maximal degree in co-relation 21300. Up to 2593 conditions per place. [2023-08-29 01:58:17,285 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 407 selfloop transitions, 230 changer transitions 0/648 dead transitions. [2023-08-29 01:58:17,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 648 transitions, 9881 flow [2023-08-29 01:58:17,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:17,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 820 transitions. [2023-08-29 01:58:17,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5503355704697986 [2023-08-29 01:58:17,289 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 820 transitions. [2023-08-29 01:58:17,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 820 transitions. [2023-08-29 01:58:17,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:17,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 820 transitions. [2023-08-29 01:58:17,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states 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 01:58:17,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:17,294 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:17,294 INFO L175 Difference]: Start difference. First operand has 158 places, 425 transitions, 6837 flow. Second operand 10 states and 820 transitions. [2023-08-29 01:58:17,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 648 transitions, 9881 flow [2023-08-29 01:58:17,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 648 transitions, 9746 flow, removed 44 selfloop flow, removed 4 redundant places. [2023-08-29 01:58:17,446 INFO L231 Difference]: Finished difference. Result has 169 places, 509 transitions, 8285 flow [2023-08-29 01:58:17,447 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=6702, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8285, PETRI_PLACES=169, PETRI_TRANSITIONS=509} [2023-08-29 01:58:17,448 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 124 predicate places. [2023-08-29 01:58:17,448 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 509 transitions, 8285 flow [2023-08-29 01:58:17,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:17,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:17,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:17,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 01:58:17,449 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:17,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:17,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1244559529, now seen corresponding path program 2 times [2023-08-29 01:58:17,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:17,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629122836] [2023-08-29 01:58:17,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:17,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:17,756 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 01:58:17,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:17,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629122836] [2023-08-29 01:58:17,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629122836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:17,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:17,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:17,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735106504] [2023-08-29 01:58:17,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:17,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:17,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:17,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:17,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:18,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 01:58:18,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 509 transitions, 8285 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:18,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:18,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 01:58:18,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:18,832 INFO L130 PetriNetUnfolder]: 1392/3270 cut-off events. [2023-08-29 01:58:18,832 INFO L131 PetriNetUnfolder]: For 41898/42000 co-relation queries the response was YES. [2023-08-29 01:58:18,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19372 conditions, 3270 events. 1392/3270 cut-off events. For 41898/42000 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 24229 event pairs, 134 based on Foata normal form. 28/3234 useless extension candidates. Maximal degree in co-relation 19302. Up to 2060 conditions per place. [2023-08-29 01:58:18,868 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 299 selfloop transitions, 154 changer transitions 0/589 dead transitions. [2023-08-29 01:58:18,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 589 transitions, 10106 flow [2023-08-29 01:58:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 01:58:18,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 01:58:18,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 774 transitions. [2023-08-29 01:58:18,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5771812080536913 [2023-08-29 01:58:18,872 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 774 transitions. [2023-08-29 01:58:18,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 774 transitions. [2023-08-29 01:58:18,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:18,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 774 transitions. [2023-08-29 01:58:18,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.0) internal successors, (774), 9 states have internal predecessors, (774), 0 states have call successors, (0), 0 states 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 01:58:18,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:58:18,876 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:58:18,876 INFO L175 Difference]: Start difference. First operand has 169 places, 509 transitions, 8285 flow. Second operand 9 states and 774 transitions. [2023-08-29 01:58:18,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 589 transitions, 10106 flow [2023-08-29 01:58:19,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 589 transitions, 10067 flow, removed 19 selfloop flow, removed 1 redundant places. [2023-08-29 01:58:19,125 INFO L231 Difference]: Finished difference. Result has 179 places, 532 transitions, 9286 flow [2023-08-29 01:58:19,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=8252, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9286, PETRI_PLACES=179, PETRI_TRANSITIONS=532} [2023-08-29 01:58:19,127 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 134 predicate places. [2023-08-29 01:58:19,127 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 532 transitions, 9286 flow [2023-08-29 01:58:19,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:19,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:19,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:19,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 01:58:19,128 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:19,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:19,128 INFO L85 PathProgramCache]: Analyzing trace with hash 759309596, now seen corresponding path program 6 times [2023-08-29 01:58:19,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:19,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616124666] [2023-08-29 01:58:19,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:19,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:19,428 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 01:58:19,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:19,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616124666] [2023-08-29 01:58:19,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616124666] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:19,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:19,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:19,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399216104] [2023-08-29 01:58:19,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:19,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:19,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:19,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:19,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:19,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 01:58:19,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 532 transitions, 9286 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:19,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:19,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 01:58:19,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:20,619 INFO L130 PetriNetUnfolder]: 1435/3366 cut-off events. [2023-08-29 01:58:20,619 INFO L131 PetriNetUnfolder]: For 55172/55378 co-relation queries the response was YES. [2023-08-29 01:58:20,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21038 conditions, 3366 events. 1435/3366 cut-off events. For 55172/55378 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 25118 event pairs, 140 based on Foata normal form. 47/3337 useless extension candidates. Maximal degree in co-relation 20964. Up to 1781 conditions per place. [2023-08-29 01:58:20,659 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 356 selfloop transitions, 169 changer transitions 0/637 dead transitions. [2023-08-29 01:58:20,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 637 transitions, 11646 flow [2023-08-29 01:58:20,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:20,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:20,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 868 transitions. [2023-08-29 01:58:20,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5825503355704698 [2023-08-29 01:58:20,662 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 868 transitions. [2023-08-29 01:58:20,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 868 transitions. [2023-08-29 01:58:20,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:20,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 868 transitions. [2023-08-29 01:58:20,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.8) internal successors, (868), 10 states have internal predecessors, (868), 0 states have call successors, (0), 0 states 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 01:58:20,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:20,668 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:20,668 INFO L175 Difference]: Start difference. First operand has 179 places, 532 transitions, 9286 flow. Second operand 10 states and 868 transitions. [2023-08-29 01:58:20,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 637 transitions, 11646 flow [2023-08-29 01:58:20,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 637 transitions, 11440 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-08-29 01:58:20,896 INFO L231 Difference]: Finished difference. Result has 186 places, 561 transitions, 10524 flow [2023-08-29 01:58:20,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=9087, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10524, PETRI_PLACES=186, PETRI_TRANSITIONS=561} [2023-08-29 01:58:20,897 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 141 predicate places. [2023-08-29 01:58:20,897 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 561 transitions, 10524 flow [2023-08-29 01:58:20,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:20,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:20,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:20,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 01:58:20,898 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:20,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:20,899 INFO L85 PathProgramCache]: Analyzing trace with hash -629270941, now seen corresponding path program 3 times [2023-08-29 01:58:20,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:20,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863971047] [2023-08-29 01:58:20,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:20,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:21,210 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 01:58:21,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:21,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863971047] [2023-08-29 01:58:21,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863971047] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:21,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:21,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:21,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632493852] [2023-08-29 01:58:21,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:21,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:21,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:21,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:21,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:21,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 01:58:21,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 561 transitions, 10524 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:21,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:21,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 01:58:21,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:22,564 INFO L130 PetriNetUnfolder]: 1522/3541 cut-off events. [2023-08-29 01:58:22,564 INFO L131 PetriNetUnfolder]: For 60321/60452 co-relation queries the response was YES. [2023-08-29 01:58:22,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22529 conditions, 3541 events. 1522/3541 cut-off events. For 60321/60452 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 26573 event pairs, 194 based on Foata normal form. 43/3513 useless extension candidates. Maximal degree in co-relation 22451. Up to 2188 conditions per place. [2023-08-29 01:58:22,606 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 335 selfloop transitions, 190 changer transitions 0/663 dead transitions. [2023-08-29 01:58:22,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 663 transitions, 12834 flow [2023-08-29 01:58:22,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:22,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:22,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 859 transitions. [2023-08-29 01:58:22,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5765100671140939 [2023-08-29 01:58:22,612 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 859 transitions. [2023-08-29 01:58:22,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 859 transitions. [2023-08-29 01:58:22,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:22,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 859 transitions. [2023-08-29 01:58:22,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 85.9) internal successors, (859), 10 states have internal predecessors, (859), 0 states have call successors, (0), 0 states 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 01:58:22,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:22,619 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:22,619 INFO L175 Difference]: Start difference. First operand has 186 places, 561 transitions, 10524 flow. Second operand 10 states and 859 transitions. [2023-08-29 01:58:22,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 663 transitions, 12834 flow [2023-08-29 01:58:22,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 663 transitions, 12650 flow, removed 54 selfloop flow, removed 4 redundant places. [2023-08-29 01:58:22,906 INFO L231 Difference]: Finished difference. Result has 196 places, 595 transitions, 11820 flow [2023-08-29 01:58:22,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=10343, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11820, PETRI_PLACES=196, PETRI_TRANSITIONS=595} [2023-08-29 01:58:22,907 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 151 predicate places. [2023-08-29 01:58:22,907 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 595 transitions, 11820 flow [2023-08-29 01:58:22,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:22,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:22,907 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:22,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 01:58:22,907 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:22,908 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:22,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1152685874, now seen corresponding path program 1 times [2023-08-29 01:58:22,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:22,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481561911] [2023-08-29 01:58:22,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:22,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:23,157 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 01:58:23,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:23,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481561911] [2023-08-29 01:58:23,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481561911] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:23,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:23,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:23,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246120891] [2023-08-29 01:58:23,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:23,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:23,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:23,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:23,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:23,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 01:58:23,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 595 transitions, 11820 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:23,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:23,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 01:58:23,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:24,784 INFO L130 PetriNetUnfolder]: 2054/4522 cut-off events. [2023-08-29 01:58:24,785 INFO L131 PetriNetUnfolder]: For 77374/77418 co-relation queries the response was YES. [2023-08-29 01:58:24,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29662 conditions, 4522 events. 2054/4522 cut-off events. For 77374/77418 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 33508 event pairs, 464 based on Foata normal form. 28/4476 useless extension candidates. Maximal degree in co-relation 29580. Up to 3199 conditions per place. [2023-08-29 01:58:24,835 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 499 selfloop transitions, 308 changer transitions 0/823 dead transitions. [2023-08-29 01:58:24,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 823 transitions, 16406 flow [2023-08-29 01:58:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:24,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:24,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 797 transitions. [2023-08-29 01:58:24,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5348993288590604 [2023-08-29 01:58:24,838 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 797 transitions. [2023-08-29 01:58:24,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 797 transitions. [2023-08-29 01:58:24,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:24,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 797 transitions. [2023-08-29 01:58:24,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.7) internal successors, (797), 10 states have internal predecessors, (797), 0 states have call successors, (0), 0 states 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 01:58:24,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:24,842 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:24,842 INFO L175 Difference]: Start difference. First operand has 196 places, 595 transitions, 11820 flow. Second operand 10 states and 797 transitions. [2023-08-29 01:58:24,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 823 transitions, 16406 flow [2023-08-29 01:58:25,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 823 transitions, 16298 flow, removed 21 selfloop flow, removed 4 redundant places. [2023-08-29 01:58:25,164 INFO L231 Difference]: Finished difference. Result has 207 places, 689 transitions, 14279 flow [2023-08-29 01:58:25,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=11712, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14279, PETRI_PLACES=207, PETRI_TRANSITIONS=689} [2023-08-29 01:58:25,165 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 162 predicate places. [2023-08-29 01:58:25,166 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 689 transitions, 14279 flow [2023-08-29 01:58:25,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:25,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:25,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:25,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 01:58:25,167 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:25,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:25,167 INFO L85 PathProgramCache]: Analyzing trace with hash 274183847, now seen corresponding path program 4 times [2023-08-29 01:58:25,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:25,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968522896] [2023-08-29 01:58:25,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:25,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:25,477 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 01:58:25,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:25,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968522896] [2023-08-29 01:58:25,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968522896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:25,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:25,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:25,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441816713] [2023-08-29 01:58:25,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:25,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:25,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:25,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:25,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:25,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 01:58:25,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 689 transitions, 14279 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:25,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:25,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 01:58:25,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:27,077 INFO L130 PetriNetUnfolder]: 1690/3918 cut-off events. [2023-08-29 01:58:27,077 INFO L131 PetriNetUnfolder]: For 77143/77290 co-relation queries the response was YES. [2023-08-29 01:58:27,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27137 conditions, 3918 events. 1690/3918 cut-off events. For 77143/77290 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 30037 event pairs, 148 based on Foata normal form. 54/3896 useless extension candidates. Maximal degree in co-relation 27049. Up to 1244 conditions per place. [2023-08-29 01:58:27,123 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 583 selfloop transitions, 148 changer transitions 0/893 dead transitions. [2023-08-29 01:58:27,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 893 transitions, 18024 flow [2023-08-29 01:58:27,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 01:58:27,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 01:58:27,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 944 transitions. [2023-08-29 01:58:27,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5759609517998779 [2023-08-29 01:58:27,125 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 944 transitions. [2023-08-29 01:58:27,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 944 transitions. [2023-08-29 01:58:27,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:27,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 944 transitions. [2023-08-29 01:58:27,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.81818181818181) internal successors, (944), 11 states have internal predecessors, (944), 0 states have call successors, (0), 0 states 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 01:58:27,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states 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 01:58:27,130 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states 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 01:58:27,130 INFO L175 Difference]: Start difference. First operand has 207 places, 689 transitions, 14279 flow. Second operand 11 states and 944 transitions. [2023-08-29 01:58:27,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 893 transitions, 18024 flow [2023-08-29 01:58:27,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 893 transitions, 17957 flow, removed 28 selfloop flow, removed 2 redundant places. [2023-08-29 01:58:27,489 INFO L231 Difference]: Finished difference. Result has 222 places, 719 transitions, 15283 flow [2023-08-29 01:58:27,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=14222, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15283, PETRI_PLACES=222, PETRI_TRANSITIONS=719} [2023-08-29 01:58:27,490 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 177 predicate places. [2023-08-29 01:58:27,491 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 719 transitions, 15283 flow [2023-08-29 01:58:27,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:27,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:27,491 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:27,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 01:58:27,492 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:27,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:27,492 INFO L85 PathProgramCache]: Analyzing trace with hash -523263794, now seen corresponding path program 2 times [2023-08-29 01:58:27,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:27,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824944389] [2023-08-29 01:58:27,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:27,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:27,721 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 01:58:27,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:27,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824944389] [2023-08-29 01:58:27,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824944389] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:27,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:27,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:27,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939344312] [2023-08-29 01:58:27,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:27,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:27,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:27,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:27,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:27,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 01:58:27,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 719 transitions, 15283 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:27,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:27,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 01:58:27,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:29,413 INFO L130 PetriNetUnfolder]: 2069/4526 cut-off events. [2023-08-29 01:58:29,413 INFO L131 PetriNetUnfolder]: For 90757/90811 co-relation queries the response was YES. [2023-08-29 01:58:29,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32560 conditions, 4526 events. 2069/4526 cut-off events. For 90757/90811 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 33234 event pairs, 437 based on Foata normal form. 23/4483 useless extension candidates. Maximal degree in co-relation 32465. Up to 1759 conditions per place. [2023-08-29 01:58:29,455 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 744 selfloop transitions, 211 changer transitions 0/968 dead transitions. [2023-08-29 01:58:29,455 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 968 transitions, 19951 flow [2023-08-29 01:58:29,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:29,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:29,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 837 transitions. [2023-08-29 01:58:29,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.561744966442953 [2023-08-29 01:58:29,457 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 837 transitions. [2023-08-29 01:58:29,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 837 transitions. [2023-08-29 01:58:29,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:29,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 837 transitions. [2023-08-29 01:58:29,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.7) internal successors, (837), 10 states have internal predecessors, (837), 0 states have call successors, (0), 0 states 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 01:58:29,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:29,461 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:29,462 INFO L175 Difference]: Start difference. First operand has 222 places, 719 transitions, 15283 flow. Second operand 10 states and 837 transitions. [2023-08-29 01:58:29,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 968 transitions, 19951 flow [2023-08-29 01:58:29,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 968 transitions, 19754 flow, removed 98 selfloop flow, removed 1 redundant places. [2023-08-29 01:58:29,833 INFO L231 Difference]: Finished difference. Result has 236 places, 794 transitions, 16822 flow [2023-08-29 01:58:29,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=15148, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16822, PETRI_PLACES=236, PETRI_TRANSITIONS=794} [2023-08-29 01:58:29,834 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 191 predicate places. [2023-08-29 01:58:29,834 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 794 transitions, 16822 flow [2023-08-29 01:58:29,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:29,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:29,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:29,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 01:58:29,835 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:29,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:29,835 INFO L85 PathProgramCache]: Analyzing trace with hash -285610316, now seen corresponding path program 2 times [2023-08-29 01:58:29,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:29,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689251634] [2023-08-29 01:58:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:29,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:30,050 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 01:58:30,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:30,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689251634] [2023-08-29 01:58:30,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689251634] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:30,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:30,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:30,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215735725] [2023-08-29 01:58:30,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:30,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:30,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:30,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:30,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:30,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 01:58:30,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 794 transitions, 16822 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:30,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:30,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 01:58:30,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:31,731 INFO L130 PetriNetUnfolder]: 2006/4392 cut-off events. [2023-08-29 01:58:31,732 INFO L131 PetriNetUnfolder]: For 96536/96572 co-relation queries the response was YES. [2023-08-29 01:58:31,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32930 conditions, 4392 events. 2006/4392 cut-off events. For 96536/96572 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 32132 event pairs, 362 based on Foata normal form. 50/4377 useless extension candidates. Maximal degree in co-relation 32828. Up to 1744 conditions per place. [2023-08-29 01:58:31,787 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 843 selfloop transitions, 160 changer transitions 0/1019 dead transitions. [2023-08-29 01:58:31,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 1019 transitions, 22081 flow [2023-08-29 01:58:31,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 01:58:31,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 01:58:31,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 873 transitions. [2023-08-29 01:58:31,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5326418547895058 [2023-08-29 01:58:31,789 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 873 transitions. [2023-08-29 01:58:31,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 873 transitions. [2023-08-29 01:58:31,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:31,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 873 transitions. [2023-08-29 01:58:31,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.36363636363636) internal successors, (873), 11 states have internal predecessors, (873), 0 states have call successors, (0), 0 states 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 01:58:31,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states 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 01:58:31,791 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states 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 01:58:31,792 INFO L175 Difference]: Start difference. First operand has 236 places, 794 transitions, 16822 flow. Second operand 11 states and 873 transitions. [2023-08-29 01:58:31,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 1019 transitions, 22081 flow [2023-08-29 01:58:32,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 1019 transitions, 21942 flow, removed 65 selfloop flow, removed 2 redundant places. [2023-08-29 01:58:32,253 INFO L231 Difference]: Finished difference. Result has 250 places, 833 transitions, 17927 flow [2023-08-29 01:58:32,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=16729, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=794, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17927, PETRI_PLACES=250, PETRI_TRANSITIONS=833} [2023-08-29 01:58:32,254 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 205 predicate places. [2023-08-29 01:58:32,254 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 833 transitions, 17927 flow [2023-08-29 01:58:32,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:32,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:32,255 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:32,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 01:58:32,255 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:32,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:32,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1199982051, now seen corresponding path program 5 times [2023-08-29 01:58:32,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:32,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618047575] [2023-08-29 01:58:32,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:32,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:32,527 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 01:58:32,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:32,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618047575] [2023-08-29 01:58:32,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618047575] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:32,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:32,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:32,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009230024] [2023-08-29 01:58:32,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:32,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:32,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:32,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:32,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:32,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 01:58:32,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 833 transitions, 17927 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:32,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:32,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 01:58:32,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:34,104 INFO L130 PetriNetUnfolder]: 1760/4023 cut-off events. [2023-08-29 01:58:34,104 INFO L131 PetriNetUnfolder]: For 103801/103945 co-relation queries the response was YES. [2023-08-29 01:58:34,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31910 conditions, 4023 events. 1760/4023 cut-off events. For 103801/103945 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 30665 event pairs, 188 based on Foata normal form. 48/3993 useless extension candidates. Maximal degree in co-relation 31802. Up to 2485 conditions per place. [2023-08-29 01:58:34,159 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 540 selfloop transitions, 233 changer transitions 0/962 dead transitions. [2023-08-29 01:58:34,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 962 transitions, 21488 flow [2023-08-29 01:58:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:34,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:34,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 861 transitions. [2023-08-29 01:58:34,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5778523489932886 [2023-08-29 01:58:34,161 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 861 transitions. [2023-08-29 01:58:34,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 861 transitions. [2023-08-29 01:58:34,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:34,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 861 transitions. [2023-08-29 01:58:34,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 0 states have call successors, (0), 0 states 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 01:58:34,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:34,164 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:34,164 INFO L175 Difference]: Start difference. First operand has 250 places, 833 transitions, 17927 flow. Second operand 10 states and 861 transitions. [2023-08-29 01:58:34,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 962 transitions, 21488 flow [2023-08-29 01:58:34,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 962 transitions, 21282 flow, removed 53 selfloop flow, removed 3 redundant places. [2023-08-29 01:58:34,698 INFO L231 Difference]: Finished difference. Result has 262 places, 878 transitions, 19854 flow [2023-08-29 01:58:34,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=17743, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=833, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=19854, PETRI_PLACES=262, PETRI_TRANSITIONS=878} [2023-08-29 01:58:34,699 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 217 predicate places. [2023-08-29 01:58:34,700 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 878 transitions, 19854 flow [2023-08-29 01:58:34,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:34,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:34,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:34,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 01:58:34,700 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:34,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:34,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1194263780, now seen corresponding path program 3 times [2023-08-29 01:58:34,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:34,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971940030] [2023-08-29 01:58:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:34,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:34,899 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 01:58:34,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:34,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971940030] [2023-08-29 01:58:34,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971940030] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:34,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:34,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:34,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624269830] [2023-08-29 01:58:34,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:34,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:34,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:34,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:34,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:35,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 01:58:35,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 878 transitions, 19854 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:35,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:35,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 01:58:35,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:36,835 INFO L130 PetriNetUnfolder]: 2083/4547 cut-off events. [2023-08-29 01:58:36,835 INFO L131 PetriNetUnfolder]: For 118130/118176 co-relation queries the response was YES. [2023-08-29 01:58:36,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36418 conditions, 4547 events. 2083/4547 cut-off events. For 118130/118176 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 33518 event pairs, 447 based on Foata normal form. 28/4512 useless extension candidates. Maximal degree in co-relation 36304. Up to 2142 conditions per place. [2023-08-29 01:58:36,896 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 842 selfloop transitions, 174 changer transitions 0/1032 dead transitions. [2023-08-29 01:58:36,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 1032 transitions, 23870 flow [2023-08-29 01:58:36,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:36,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:36,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 805 transitions. [2023-08-29 01:58:36,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540268456375839 [2023-08-29 01:58:36,898 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 805 transitions. [2023-08-29 01:58:36,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 805 transitions. [2023-08-29 01:58:36,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:36,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 805 transitions. [2023-08-29 01:58:36,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.5) internal successors, (805), 10 states have internal predecessors, (805), 0 states have call successors, (0), 0 states 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 01:58:36,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:36,902 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:36,902 INFO L175 Difference]: Start difference. First operand has 262 places, 878 transitions, 19854 flow. Second operand 10 states and 805 transitions. [2023-08-29 01:58:36,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 1032 transitions, 23870 flow [2023-08-29 01:58:37,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 1032 transitions, 23672 flow, removed 70 selfloop flow, removed 3 redundant places. [2023-08-29 01:58:37,667 INFO L231 Difference]: Finished difference. Result has 272 places, 903 transitions, 20663 flow [2023-08-29 01:58:37,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=19668, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=878, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=704, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20663, PETRI_PLACES=272, PETRI_TRANSITIONS=903} [2023-08-29 01:58:37,669 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 227 predicate places. [2023-08-29 01:58:37,669 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 903 transitions, 20663 flow [2023-08-29 01:58:37,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:37,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:37,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:37,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 01:58:37,670 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:37,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:37,671 INFO L85 PathProgramCache]: Analyzing trace with hash 364009928, now seen corresponding path program 3 times [2023-08-29 01:58:37,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:37,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158199601] [2023-08-29 01:58:37,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:37,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:37,911 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 01:58:37,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:37,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158199601] [2023-08-29 01:58:37,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158199601] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:37,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:37,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:37,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470772072] [2023-08-29 01:58:37,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:37,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:37,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:37,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:37,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:38,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 01:58:38,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 903 transitions, 20663 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:38,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:38,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 01:58:38,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:39,832 INFO L130 PetriNetUnfolder]: 2198/4759 cut-off events. [2023-08-29 01:58:39,833 INFO L131 PetriNetUnfolder]: For 127982/128015 co-relation queries the response was YES. [2023-08-29 01:58:39,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38781 conditions, 4759 events. 2198/4759 cut-off events. For 127982/128015 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 34966 event pairs, 482 based on Foata normal form. 14/4699 useless extension candidates. Maximal degree in co-relation 38664. Up to 3606 conditions per place. [2023-08-29 01:58:39,898 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 565 selfloop transitions, 417 changer transitions 0/998 dead transitions. [2023-08-29 01:58:39,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 998 transitions, 23786 flow [2023-08-29 01:58:39,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 01:58:39,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 01:58:39,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 741 transitions. [2023-08-29 01:58:39,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5525727069351231 [2023-08-29 01:58:39,901 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 741 transitions. [2023-08-29 01:58:39,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 741 transitions. [2023-08-29 01:58:39,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:39,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 741 transitions. [2023-08-29 01:58:39,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.33333333333333) internal successors, (741), 9 states have internal predecessors, (741), 0 states have call successors, (0), 0 states 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 01:58:39,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:58:39,904 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:58:39,905 INFO L175 Difference]: Start difference. First operand has 272 places, 903 transitions, 20663 flow. Second operand 9 states and 741 transitions. [2023-08-29 01:58:39,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 998 transitions, 23786 flow [2023-08-29 01:58:40,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 998 transitions, 23539 flow, removed 78 selfloop flow, removed 3 redundant places. [2023-08-29 01:58:40,648 INFO L231 Difference]: Finished difference. Result has 280 places, 918 transitions, 22108 flow [2023-08-29 01:58:40,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=20459, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=903, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=402, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=22108, PETRI_PLACES=280, PETRI_TRANSITIONS=918} [2023-08-29 01:58:40,649 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 235 predicate places. [2023-08-29 01:58:40,649 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 918 transitions, 22108 flow [2023-08-29 01:58:40,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:40,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:40,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:40,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 01:58:40,650 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:40,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:40,651 INFO L85 PathProgramCache]: Analyzing trace with hash 2022772808, now seen corresponding path program 4 times [2023-08-29 01:58:40,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:40,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986645624] [2023-08-29 01:58:40,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:40,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:40,882 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 01:58:40,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:40,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986645624] [2023-08-29 01:58:40,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986645624] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:40,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:40,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:40,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938874260] [2023-08-29 01:58:40,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:40,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:40,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:40,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:40,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:41,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 01:58:41,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 918 transitions, 22108 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:41,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:41,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 01:58:41,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:43,067 INFO L130 PetriNetUnfolder]: 2280/4924 cut-off events. [2023-08-29 01:58:43,067 INFO L131 PetriNetUnfolder]: For 138997/139030 co-relation queries the response was YES. [2023-08-29 01:58:43,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41579 conditions, 4924 events. 2280/4924 cut-off events. For 138997/139030 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 36425 event pairs, 469 based on Foata normal form. 25/4882 useless extension candidates. Maximal degree in co-relation 41460. Up to 3516 conditions per place. [2023-08-29 01:58:43,135 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 648 selfloop transitions, 433 changer transitions 0/1097 dead transitions. [2023-08-29 01:58:43,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 1097 transitions, 26717 flow [2023-08-29 01:58:43,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:43,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:43,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 822 transitions. [2023-08-29 01:58:43,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5516778523489932 [2023-08-29 01:58:43,137 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 822 transitions. [2023-08-29 01:58:43,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 822 transitions. [2023-08-29 01:58:43,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:43,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 822 transitions. [2023-08-29 01:58:43,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.2) internal successors, (822), 10 states have internal predecessors, (822), 0 states have call successors, (0), 0 states 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 01:58:43,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:43,141 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:43,141 INFO L175 Difference]: Start difference. First operand has 280 places, 918 transitions, 22108 flow. Second operand 10 states and 822 transitions. [2023-08-29 01:58:43,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 1097 transitions, 26717 flow [2023-08-29 01:58:43,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 1097 transitions, 26454 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-29 01:58:43,854 INFO L231 Difference]: Finished difference. Result has 290 places, 968 transitions, 24025 flow [2023-08-29 01:58:43,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=21849, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=918, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=384, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=24025, PETRI_PLACES=290, PETRI_TRANSITIONS=968} [2023-08-29 01:58:43,855 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 245 predicate places. [2023-08-29 01:58:43,855 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 968 transitions, 24025 flow [2023-08-29 01:58:43,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:43,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:43,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:43,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 01:58:43,856 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:43,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:43,856 INFO L85 PathProgramCache]: Analyzing trace with hash 414952538, now seen corresponding path program 5 times [2023-08-29 01:58:43,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:43,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197895963] [2023-08-29 01:58:43,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:43,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:44,092 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 01:58:44,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:44,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197895963] [2023-08-29 01:58:44,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197895963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:44,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:44,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:44,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822800756] [2023-08-29 01:58:44,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:44,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:44,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:44,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:44,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:44,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 01:58:44,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 968 transitions, 24025 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:44,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:44,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 01:58:44,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:46,327 INFO L130 PetriNetUnfolder]: 2300/4964 cut-off events. [2023-08-29 01:58:46,327 INFO L131 PetriNetUnfolder]: For 150165/150198 co-relation queries the response was YES. [2023-08-29 01:58:46,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43719 conditions, 4964 events. 2300/4964 cut-off events. For 150165/150198 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 36762 event pairs, 473 based on Foata normal form. 25/4917 useless extension candidates. Maximal degree in co-relation 43595. Up to 3684 conditions per place. [2023-08-29 01:58:46,401 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 625 selfloop transitions, 458 changer transitions 0/1099 dead transitions. [2023-08-29 01:58:46,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 1099 transitions, 27936 flow [2023-08-29 01:58:46,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:46,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:46,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 822 transitions. [2023-08-29 01:58:46,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5516778523489932 [2023-08-29 01:58:46,403 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 822 transitions. [2023-08-29 01:58:46,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 822 transitions. [2023-08-29 01:58:46,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:46,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 822 transitions. [2023-08-29 01:58:46,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.2) internal successors, (822), 10 states have internal predecessors, (822), 0 states have call successors, (0), 0 states 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 01:58:46,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:46,407 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:46,407 INFO L175 Difference]: Start difference. First operand has 290 places, 968 transitions, 24025 flow. Second operand 10 states and 822 transitions. [2023-08-29 01:58:46,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 1099 transitions, 27936 flow [2023-08-29 01:58:47,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 1099 transitions, 27653 flow, removed 52 selfloop flow, removed 3 redundant places. [2023-08-29 01:58:47,311 INFO L231 Difference]: Finished difference. Result has 300 places, 1001 transitions, 25683 flow [2023-08-29 01:58:47,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=23742, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=426, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=25683, PETRI_PLACES=300, PETRI_TRANSITIONS=1001} [2023-08-29 01:58:47,312 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 255 predicate places. [2023-08-29 01:58:47,312 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 1001 transitions, 25683 flow [2023-08-29 01:58:47,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:47,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:47,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:47,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 01:58:47,313 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:47,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:47,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1573861707, now seen corresponding path program 6 times [2023-08-29 01:58:47,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:47,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242982068] [2023-08-29 01:58:47,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:47,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:47,570 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 01:58:47,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:47,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242982068] [2023-08-29 01:58:47,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242982068] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:47,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:47,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:47,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438058949] [2023-08-29 01:58:47,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:47,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:47,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:47,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:47,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:47,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 01:58:47,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 1001 transitions, 25683 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:47,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:47,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 01:58:47,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:49,593 INFO L130 PetriNetUnfolder]: 1966/4400 cut-off events. [2023-08-29 01:58:49,593 INFO L131 PetriNetUnfolder]: For 159361/159503 co-relation queries the response was YES. [2023-08-29 01:58:49,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41274 conditions, 4400 events. 1966/4400 cut-off events. For 159361/159503 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 33651 event pairs, 208 based on Foata normal form. 47/4365 useless extension candidates. Maximal degree in co-relation 41146. Up to 2660 conditions per place. [2023-08-29 01:58:49,639 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 652 selfloop transitions, 278 changer transitions 0/1131 dead transitions. [2023-08-29 01:58:49,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 1131 transitions, 30332 flow [2023-08-29 01:58:49,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:58:49,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:58:49,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 861 transitions. [2023-08-29 01:58:49,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5778523489932886 [2023-08-29 01:58:49,641 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 861 transitions. [2023-08-29 01:58:49,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 861 transitions. [2023-08-29 01:58:49,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:49,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 861 transitions. [2023-08-29 01:58:49,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 0 states have call successors, (0), 0 states 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 01:58:49,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:49,645 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:58:49,645 INFO L175 Difference]: Start difference. First operand has 300 places, 1001 transitions, 25683 flow. Second operand 10 states and 861 transitions. [2023-08-29 01:58:49,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 1131 transitions, 30332 flow [2023-08-29 01:58:50,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 1131 transitions, 29851 flow, removed 67 selfloop flow, removed 5 redundant places. [2023-08-29 01:58:50,449 INFO L231 Difference]: Finished difference. Result has 309 places, 1032 transitions, 27380 flow [2023-08-29 01:58:50,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=25221, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=733, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=27380, PETRI_PLACES=309, PETRI_TRANSITIONS=1032} [2023-08-29 01:58:50,450 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 264 predicate places. [2023-08-29 01:58:50,450 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 1032 transitions, 27380 flow [2023-08-29 01:58:50,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 01:58:50,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:50,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:50,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 01:58:50,451 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:50,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:50,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1806564088, now seen corresponding path program 6 times [2023-08-29 01:58:50,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:50,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107305253] [2023-08-29 01:58:50,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:50,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:50,675 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 01:58:50,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:50,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107305253] [2023-08-29 01:58:50,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107305253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:50,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:50,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:50,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091218151] [2023-08-29 01:58:50,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:50,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:50,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:50,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:50,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:50,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 01:58:50,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 1032 transitions, 27380 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:50,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:50,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 01:58:50,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:53,133 INFO L130 PetriNetUnfolder]: 2305/4971 cut-off events. [2023-08-29 01:58:53,133 INFO L131 PetriNetUnfolder]: For 173202/173233 co-relation queries the response was YES. [2023-08-29 01:58:53,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46066 conditions, 4971 events. 2305/4971 cut-off events. For 173202/173233 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 36710 event pairs, 449 based on Foata normal form. 51/4951 useless extension candidates. Maximal degree in co-relation 45934. Up to 2515 conditions per place. [2023-08-29 01:58:53,211 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 957 selfloop transitions, 243 changer transitions 0/1215 dead transitions. [2023-08-29 01:58:53,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 1215 transitions, 32601 flow [2023-08-29 01:58:53,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 01:58:53,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 01:58:53,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 899 transitions. [2023-08-29 01:58:53,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5485051860890787 [2023-08-29 01:58:53,213 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 899 transitions. [2023-08-29 01:58:53,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 899 transitions. [2023-08-29 01:58:53,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:53,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 899 transitions. [2023-08-29 01:58:53,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 81.72727272727273) internal successors, (899), 11 states have internal predecessors, (899), 0 states have call successors, (0), 0 states 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 01:58:53,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states 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 01:58:53,217 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states 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 01:58:53,217 INFO L175 Difference]: Start difference. First operand has 309 places, 1032 transitions, 27380 flow. Second operand 11 states and 899 transitions. [2023-08-29 01:58:53,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 1215 transitions, 32601 flow [2023-08-29 01:58:54,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 1215 transitions, 32292 flow, removed 88 selfloop flow, removed 4 redundant places. [2023-08-29 01:58:54,248 INFO L231 Difference]: Finished difference. Result has 322 places, 1049 transitions, 28339 flow [2023-08-29 01:58:54,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=27155, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1032, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=793, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=28339, PETRI_PLACES=322, PETRI_TRANSITIONS=1049} [2023-08-29 01:58:54,249 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 277 predicate places. [2023-08-29 01:58:54,249 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 1049 transitions, 28339 flow [2023-08-29 01:58:54,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:54,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:54,249 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:54,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 01:58:54,250 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:54,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:54,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1210359308, now seen corresponding path program 4 times [2023-08-29 01:58:54,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:54,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780091052] [2023-08-29 01:58:54,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:54,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:54,484 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 01:58:54,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:54,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780091052] [2023-08-29 01:58:54,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780091052] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:54,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:54,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:54,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996584573] [2023-08-29 01:58:54,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:54,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:54,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:54,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:54,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:54,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 01:58:54,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 1049 transitions, 28339 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:54,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:54,703 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 01:58:54,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:56,804 INFO L130 PetriNetUnfolder]: 2330/5013 cut-off events. [2023-08-29 01:58:56,804 INFO L131 PetriNetUnfolder]: For 184779/184791 co-relation queries the response was YES. [2023-08-29 01:58:56,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48019 conditions, 5013 events. 2330/5013 cut-off events. For 184779/184791 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 37168 event pairs, 513 based on Foata normal form. 17/4954 useless extension candidates. Maximal degree in co-relation 47881. Up to 3882 conditions per place. [2023-08-29 01:58:56,874 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 727 selfloop transitions, 418 changer transitions 0/1160 dead transitions. [2023-08-29 01:58:56,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 1160 transitions, 32839 flow [2023-08-29 01:58:56,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 01:58:56,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 01:58:56,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 714 transitions. [2023-08-29 01:58:56,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5324384787472036 [2023-08-29 01:58:56,876 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 714 transitions. [2023-08-29 01:58:56,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 714 transitions. [2023-08-29 01:58:56,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:56,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 714 transitions. [2023-08-29 01:58:56,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 0 states have call successors, (0), 0 states 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 01:58:56,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:58:56,878 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:58:56,879 INFO L175 Difference]: Start difference. First operand has 322 places, 1049 transitions, 28339 flow. Second operand 9 states and 714 transitions. [2023-08-29 01:58:56,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 1160 transitions, 32839 flow [2023-08-29 01:58:57,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 1160 transitions, 32491 flow, removed 135 selfloop flow, removed 2 redundant places. [2023-08-29 01:58:57,818 INFO L231 Difference]: Finished difference. Result has 331 places, 1062 transitions, 29725 flow [2023-08-29 01:58:57,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=28039, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=405, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=632, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=29725, PETRI_PLACES=331, PETRI_TRANSITIONS=1062} [2023-08-29 01:58:57,819 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 286 predicate places. [2023-08-29 01:58:57,819 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 1062 transitions, 29725 flow [2023-08-29 01:58:57,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:57,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:57,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:57,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 01:58:57,820 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:58:57,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:57,820 INFO L85 PathProgramCache]: Analyzing trace with hash -743994444, now seen corresponding path program 5 times [2023-08-29 01:58:57,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:57,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610347060] [2023-08-29 01:58:57,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:57,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:58,040 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 01:58:58,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:58,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610347060] [2023-08-29 01:58:58,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610347060] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:58,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:58,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:58:58,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348726455] [2023-08-29 01:58:58,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:58,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:58:58,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:58,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:58:58,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:58:58,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 01:58:58,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 1062 transitions, 29725 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:58:58,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:58,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 01:58:58,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:00,413 INFO L130 PetriNetUnfolder]: 2404/5172 cut-off events. [2023-08-29 01:59:00,413 INFO L131 PetriNetUnfolder]: For 195109/195121 co-relation queries the response was YES. [2023-08-29 01:59:00,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50233 conditions, 5172 events. 2404/5172 cut-off events. For 195109/195121 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 38573 event pairs, 498 based on Foata normal form. 28/5130 useless extension candidates. Maximal degree in co-relation 50092. Up to 3793 conditions per place. [2023-08-29 01:59:00,490 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 791 selfloop transitions, 419 changer transitions 0/1225 dead transitions. [2023-08-29 01:59:00,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 1225 transitions, 35213 flow [2023-08-29 01:59:00,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:59:00,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:59:00,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 795 transitions. [2023-08-29 01:59:00,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5335570469798657 [2023-08-29 01:59:00,491 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 795 transitions. [2023-08-29 01:59:00,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 795 transitions. [2023-08-29 01:59:00,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:00,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 795 transitions. [2023-08-29 01:59:00,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.5) internal successors, (795), 10 states have internal predecessors, (795), 0 states have call successors, (0), 0 states 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 01:59:00,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:00,494 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:00,494 INFO L175 Difference]: Start difference. First operand has 331 places, 1062 transitions, 29725 flow. Second operand 10 states and 795 transitions. [2023-08-29 01:59:00,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 1225 transitions, 35213 flow [2023-08-29 01:59:01,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 1225 transitions, 34931 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-29 01:59:01,523 INFO L231 Difference]: Finished difference. Result has 341 places, 1098 transitions, 31523 flow [2023-08-29 01:59:01,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=29445, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=383, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=31523, PETRI_PLACES=341, PETRI_TRANSITIONS=1098} [2023-08-29 01:59:01,524 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 296 predicate places. [2023-08-29 01:59:01,524 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 1098 transitions, 31523 flow [2023-08-29 01:59:01,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:59:01,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:01,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:01,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-29 01:59:01,525 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:01,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:01,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1113404018, now seen corresponding path program 6 times [2023-08-29 01:59:01,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:01,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128360757] [2023-08-29 01:59:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:01,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:01,740 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 01:59:01,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:01,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128360757] [2023-08-29 01:59:01,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128360757] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:01,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:01,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 01:59:01,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342562885] [2023-08-29 01:59:01,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:01,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 01:59:01,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:01,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 01:59:01,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 01:59:01,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 01:59:01,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 1098 transitions, 31523 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:59:01,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:01,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 01:59:01,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:04,316 INFO L130 PetriNetUnfolder]: 2422/5213 cut-off events. [2023-08-29 01:59:04,316 INFO L131 PetriNetUnfolder]: For 204888/204898 co-relation queries the response was YES. [2023-08-29 01:59:04,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52122 conditions, 5213 events. 2422/5213 cut-off events. For 204888/204898 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 38970 event pairs, 492 based on Foata normal form. 28/5166 useless extension candidates. Maximal degree in co-relation 51976. Up to 3959 conditions per place. [2023-08-29 01:59:04,401 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 764 selfloop transitions, 454 changer transitions 0/1233 dead transitions. [2023-08-29 01:59:04,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1233 transitions, 36600 flow [2023-08-29 01:59:04,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:59:04,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:59:04,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 792 transitions. [2023-08-29 01:59:04,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5315436241610738 [2023-08-29 01:59:04,403 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 792 transitions. [2023-08-29 01:59:04,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 792 transitions. [2023-08-29 01:59:04,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:04,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 792 transitions. [2023-08-29 01:59:04,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.2) internal successors, (792), 10 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 01:59:04,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:04,407 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:04,407 INFO L175 Difference]: Start difference. First operand has 341 places, 1098 transitions, 31523 flow. Second operand 10 states and 792 transitions. [2023-08-29 01:59:04,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1233 transitions, 36600 flow [2023-08-29 01:59:05,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 1233 transitions, 36382 flow, removed 71 selfloop flow, removed 4 redundant places. [2023-08-29 01:59:05,535 INFO L231 Difference]: Finished difference. Result has 348 places, 1118 transitions, 33080 flow [2023-08-29 01:59:05,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=31293, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1097, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=433, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=645, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=33080, PETRI_PLACES=348, PETRI_TRANSITIONS=1118} [2023-08-29 01:59:05,537 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 303 predicate places. [2023-08-29 01:59:05,537 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 1118 transitions, 33080 flow [2023-08-29 01:59:05,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 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 01:59:05,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:05,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:05,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-29 01:59:05,538 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:05,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:05,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1675085254, now seen corresponding path program 1 times [2023-08-29 01:59:05,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:05,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135053330] [2023-08-29 01:59:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:05,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:05,678 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 01:59:05,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:05,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135053330] [2023-08-29 01:59:05,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135053330] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:05,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:05,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:59:05,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787345701] [2023-08-29 01:59:05,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:05,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:59:05,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:05,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:59:05,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:59:05,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 149 [2023-08-29 01:59:05,843 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 1118 transitions, 33080 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states 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 01:59:05,843 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:05,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 149 [2023-08-29 01:59:05,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:07,637 INFO L130 PetriNetUnfolder]: 2180/4768 cut-off events. [2023-08-29 01:59:07,638 INFO L131 PetriNetUnfolder]: For 214477/214594 co-relation queries the response was YES. [2023-08-29 01:59:07,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49874 conditions, 4768 events. 2180/4768 cut-off events. For 214477/214594 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 35977 event pairs, 274 based on Foata normal form. 46/4768 useless extension candidates. Maximal degree in co-relation 49727. Up to 3463 conditions per place. [2023-08-29 01:59:07,711 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 708 selfloop transitions, 93 changer transitions 168/1228 dead transitions. [2023-08-29 01:59:07,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 1228 transitions, 37913 flow [2023-08-29 01:59:07,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:59:07,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:59:07,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2023-08-29 01:59:07,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6129753914988815 [2023-08-29 01:59:07,712 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2023-08-29 01:59:07,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2023-08-29 01:59:07,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:07,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2023-08-29 01:59:07,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states 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 01:59:07,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states 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 01:59:07,713 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states 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 01:59:07,714 INFO L175 Difference]: Start difference. First operand has 348 places, 1118 transitions, 33080 flow. Second operand 6 states and 548 transitions. [2023-08-29 01:59:07,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 1228 transitions, 37913 flow [2023-08-29 01:59:08,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1228 transitions, 37285 flow, removed 70 selfloop flow, removed 6 redundant places. [2023-08-29 01:59:08,684 INFO L231 Difference]: Finished difference. Result has 352 places, 1048 transitions, 31050 flow [2023-08-29 01:59:08,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=32452, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1070, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=31050, PETRI_PLACES=352, PETRI_TRANSITIONS=1048} [2023-08-29 01:59:08,686 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 307 predicate places. [2023-08-29 01:59:08,686 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 1048 transitions, 31050 flow [2023-08-29 01:59:08,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states 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 01:59:08,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:08,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:08,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-29 01:59:08,687 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:08,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:08,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2022430577, now seen corresponding path program 1 times [2023-08-29 01:59:08,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:08,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196801177] [2023-08-29 01:59:08,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:08,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:08,990 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 01:59:08,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:08,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196801177] [2023-08-29 01:59:08,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196801177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:08,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:08,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 01:59:08,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051467230] [2023-08-29 01:59:08,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:08,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 01:59:08,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:08,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 01:59:08,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 01:59:09,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 149 [2023-08-29 01:59:09,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 1048 transitions, 31050 flow. Second operand has 9 states, 9 states have (on average 70.33333333333333) internal successors, (633), 9 states have internal predecessors, (633), 0 states have call successors, (0), 0 states 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 01:59:09,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:09,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 149 [2023-08-29 01:59:09,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:11,245 INFO L130 PetriNetUnfolder]: 2302/5081 cut-off events. [2023-08-29 01:59:11,246 INFO L131 PetriNetUnfolder]: For 211237/211249 co-relation queries the response was YES. [2023-08-29 01:59:11,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51682 conditions, 5081 events. 2302/5081 cut-off events. For 211237/211249 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 38042 event pairs, 499 based on Foata normal form. 24/5089 useless extension candidates. Maximal degree in co-relation 51532. Up to 3653 conditions per place. [2023-08-29 01:59:11,328 INFO L137 encePairwiseOnDemand]: 132/149 looper letters, 712 selfloop transitions, 420 changer transitions 32/1179 dead transitions. [2023-08-29 01:59:11,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1179 transitions, 35365 flow [2023-08-29 01:59:11,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 01:59:11,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 01:59:11,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 666 transitions. [2023-08-29 01:59:11,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5587248322147651 [2023-08-29 01:59:11,330 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 666 transitions. [2023-08-29 01:59:11,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 666 transitions. [2023-08-29 01:59:11,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:11,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 666 transitions. [2023-08-29 01:59:11,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 83.25) internal successors, (666), 8 states have internal predecessors, (666), 0 states have call successors, (0), 0 states 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 01:59:11,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states 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 01:59:11,332 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states 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 01:59:11,332 INFO L175 Difference]: Start difference. First operand has 352 places, 1048 transitions, 31050 flow. Second operand 8 states and 666 transitions. [2023-08-29 01:59:11,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1179 transitions, 35365 flow [2023-08-29 01:59:12,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1179 transitions, 34249 flow, removed 152 selfloop flow, removed 4 redundant places. [2023-08-29 01:59:12,394 INFO L231 Difference]: Finished difference. Result has 359 places, 1056 transitions, 31713 flow [2023-08-29 01:59:12,395 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=30066, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=404, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=628, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=31713, PETRI_PLACES=359, PETRI_TRANSITIONS=1056} [2023-08-29 01:59:12,395 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 314 predicate places. [2023-08-29 01:59:12,395 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 1056 transitions, 31713 flow [2023-08-29 01:59:12,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 70.33333333333333) internal successors, (633), 9 states have internal predecessors, (633), 0 states have call successors, (0), 0 states 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 01:59:12,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:12,396 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:12,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-29 01:59:12,396 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:12,397 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:12,397 INFO L85 PathProgramCache]: Analyzing trace with hash 906309544, now seen corresponding path program 1 times [2023-08-29 01:59:12,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:12,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536753724] [2023-08-29 01:59:12,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:12,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:12,711 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 01:59:12,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:12,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536753724] [2023-08-29 01:59:12,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536753724] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:12,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:12,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 01:59:12,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166134948] [2023-08-29 01:59:12,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:12,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 01:59:12,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:12,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 01:59:12,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 01:59:13,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 149 [2023-08-29 01:59:13,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 1056 transitions, 31713 flow. Second operand has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 0 states have call successors, (0), 0 states 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 01:59:13,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:13,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 149 [2023-08-29 01:59:13,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:14,806 INFO L130 PetriNetUnfolder]: 1971/4534 cut-off events. [2023-08-29 01:59:14,807 INFO L131 PetriNetUnfolder]: For 224971/225116 co-relation queries the response was YES. [2023-08-29 01:59:14,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48138 conditions, 4534 events. 1971/4534 cut-off events. For 224971/225116 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 35174 event pairs, 239 based on Foata normal form. 88/4600 useless extension candidates. Maximal degree in co-relation 47984. Up to 2951 conditions per place. [2023-08-29 01:59:14,883 INFO L137 encePairwiseOnDemand]: 141/149 looper letters, 608 selfloop transitions, 35 changer transitions 336/1172 dead transitions. [2023-08-29 01:59:14,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 1172 transitions, 35818 flow [2023-08-29 01:59:14,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 01:59:14,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 01:59:14,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 782 transitions. [2023-08-29 01:59:14,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5831469052945563 [2023-08-29 01:59:14,884 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 782 transitions. [2023-08-29 01:59:14,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 782 transitions. [2023-08-29 01:59:14,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:14,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 782 transitions. [2023-08-29 01:59:14,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.88888888888889) internal successors, (782), 9 states have internal predecessors, (782), 0 states have call successors, (0), 0 states 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 01:59:14,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:59:14,886 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:59:14,887 INFO L175 Difference]: Start difference. First operand has 359 places, 1056 transitions, 31713 flow. Second operand 9 states and 782 transitions. [2023-08-29 01:59:14,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 1172 transitions, 35818 flow [2023-08-29 01:59:15,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 1172 transitions, 35702 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 01:59:15,914 INFO L231 Difference]: Finished difference. Result has 370 places, 824 transitions, 24288 flow [2023-08-29 01:59:15,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=31627, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1021, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=24288, PETRI_PLACES=370, PETRI_TRANSITIONS=824} [2023-08-29 01:59:15,915 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 325 predicate places. [2023-08-29 01:59:15,915 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 824 transitions, 24288 flow [2023-08-29 01:59:15,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 0 states have call successors, (0), 0 states 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 01:59:15,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:15,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:15,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-29 01:59:15,916 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:15,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:15,916 INFO L85 PathProgramCache]: Analyzing trace with hash -194410995, now seen corresponding path program 2 times [2023-08-29 01:59:15,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:15,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174335227] [2023-08-29 01:59:15,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:15,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:16,352 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 01:59:16,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:16,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174335227] [2023-08-29 01:59:16,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174335227] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:16,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:16,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 01:59:16,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131992563] [2023-08-29 01:59:16,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:16,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 01:59:16,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:16,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 01:59:16,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 01:59:16,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 01:59:16,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 824 transitions, 24288 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 01:59:16,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:16,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 01:59:16,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:18,538 INFO L130 PetriNetUnfolder]: 1674/3914 cut-off events. [2023-08-29 01:59:18,538 INFO L131 PetriNetUnfolder]: For 181354/181366 co-relation queries the response was YES. [2023-08-29 01:59:18,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41281 conditions, 3914 events. 1674/3914 cut-off events. For 181354/181366 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 29318 event pairs, 402 based on Foata normal form. 15/3919 useless extension candidates. Maximal degree in co-relation 41121. Up to 1691 conditions per place. [2023-08-29 01:59:18,598 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 563 selfloop transitions, 26 changer transitions 385/989 dead transitions. [2023-08-29 01:59:18,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 989 transitions, 28349 flow [2023-08-29 01:59:18,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:59:18,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:59:18,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 805 transitions. [2023-08-29 01:59:18,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540268456375839 [2023-08-29 01:59:18,600 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 805 transitions. [2023-08-29 01:59:18,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 805 transitions. [2023-08-29 01:59:18,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:18,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 805 transitions. [2023-08-29 01:59:18,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.5) internal successors, (805), 10 states have internal predecessors, (805), 0 states have call successors, (0), 0 states 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 01:59:18,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:18,603 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:18,603 INFO L175 Difference]: Start difference. First operand has 370 places, 824 transitions, 24288 flow. Second operand 10 states and 805 transitions. [2023-08-29 01:59:18,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 989 transitions, 28349 flow [2023-08-29 01:59:19,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 989 transitions, 27045 flow, removed 159 selfloop flow, removed 12 redundant places. [2023-08-29 01:59:19,402 INFO L231 Difference]: Finished difference. Result has 369 places, 572 transitions, 15165 flow [2023-08-29 01:59:19,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=23244, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=798, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15165, PETRI_PLACES=369, PETRI_TRANSITIONS=572} [2023-08-29 01:59:19,403 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 324 predicate places. [2023-08-29 01:59:19,403 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 572 transitions, 15165 flow [2023-08-29 01:59:19,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 01:59:19,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:19,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:19,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-29 01:59:19,404 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:19,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:19,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1815637884, now seen corresponding path program 2 times [2023-08-29 01:59:19,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:19,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856961181] [2023-08-29 01:59:19,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:19,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:19,775 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 01:59:19,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:19,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856961181] [2023-08-29 01:59:19,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856961181] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:19,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:19,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 01:59:19,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874703268] [2023-08-29 01:59:19,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:19,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 01:59:19,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:19,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 01:59:19,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-29 01:59:20,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 149 [2023-08-29 01:59:20,034 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 572 transitions, 15165 flow. Second operand has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 0 states have call successors, (0), 0 states 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 01:59:20,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:20,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 149 [2023-08-29 01:59:20,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:20,784 INFO L130 PetriNetUnfolder]: 914/2269 cut-off events. [2023-08-29 01:59:20,785 INFO L131 PetriNetUnfolder]: For 105787/105851 co-relation queries the response was YES. [2023-08-29 01:59:20,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24313 conditions, 2269 events. 914/2269 cut-off events. For 105787/105851 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 15829 event pairs, 156 based on Foata normal form. 36/2292 useless extension candidates. Maximal degree in co-relation 24166. Up to 1784 conditions per place. [2023-08-29 01:59:20,820 INFO L137 encePairwiseOnDemand]: 137/149 looper letters, 423 selfloop transitions, 39 changer transitions 9/592 dead transitions. [2023-08-29 01:59:20,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 592 transitions, 16490 flow [2023-08-29 01:59:20,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 01:59:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 01:59:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 692 transitions. [2023-08-29 01:59:20,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5805369127516778 [2023-08-29 01:59:20,821 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 692 transitions. [2023-08-29 01:59:20,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 692 transitions. [2023-08-29 01:59:20,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:20,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 692 transitions. [2023-08-29 01:59:20,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 86.5) internal successors, (692), 8 states have internal predecessors, (692), 0 states have call successors, (0), 0 states 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 01:59:20,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states 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 01:59:20,823 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states 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 01:59:20,823 INFO L175 Difference]: Start difference. First operand has 369 places, 572 transitions, 15165 flow. Second operand 8 states and 692 transitions. [2023-08-29 01:59:20,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 592 transitions, 16490 flow [2023-08-29 01:59:21,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 592 transitions, 14815 flow, removed 66 selfloop flow, removed 46 redundant places. [2023-08-29 01:59:21,232 INFO L231 Difference]: Finished difference. Result has 311 places, 572 transitions, 13635 flow [2023-08-29 01:59:21,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13546, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13635, PETRI_PLACES=311, PETRI_TRANSITIONS=572} [2023-08-29 01:59:21,233 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 266 predicate places. [2023-08-29 01:59:21,233 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 572 transitions, 13635 flow [2023-08-29 01:59:21,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 0 states have call successors, (0), 0 states 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 01:59:21,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:21,233 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:21,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-29 01:59:21,233 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:21,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:21,234 INFO L85 PathProgramCache]: Analyzing trace with hash 31039561, now seen corresponding path program 3 times [2023-08-29 01:59:21,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:21,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020840168] [2023-08-29 01:59:21,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:21,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:21,656 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 01:59:21,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:21,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020840168] [2023-08-29 01:59:21,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020840168] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:21,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:21,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 01:59:21,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047377824] [2023-08-29 01:59:21,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:21,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 01:59:21,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:21,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 01:59:21,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 01:59:22,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 01:59:22,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 572 transitions, 13635 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 01:59:22,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:22,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 01:59:22,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:23,314 INFO L130 PetriNetUnfolder]: 1055/2503 cut-off events. [2023-08-29 01:59:23,315 INFO L131 PetriNetUnfolder]: For 79825/79837 co-relation queries the response was YES. [2023-08-29 01:59:23,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23828 conditions, 2503 events. 1055/2503 cut-off events. For 79825/79837 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 17042 event pairs, 187 based on Foata normal form. 15/2508 useless extension candidates. Maximal degree in co-relation 23705. Up to 845 conditions per place. [2023-08-29 01:59:23,345 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 198 selfloop transitions, 25 changer transitions 558/787 dead transitions. [2023-08-29 01:59:23,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 787 transitions, 18439 flow [2023-08-29 01:59:23,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:59:23,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:59:23,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 781 transitions. [2023-08-29 01:59:23,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5241610738255034 [2023-08-29 01:59:23,347 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 781 transitions. [2023-08-29 01:59:23,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 781 transitions. [2023-08-29 01:59:23,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:23,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 781 transitions. [2023-08-29 01:59:23,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.1) internal successors, (781), 10 states have internal predecessors, (781), 0 states have call successors, (0), 0 states 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 01:59:23,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:23,349 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:23,349 INFO L175 Difference]: Start difference. First operand has 311 places, 572 transitions, 13635 flow. Second operand 10 states and 781 transitions. [2023-08-29 01:59:23,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 787 transitions, 18439 flow [2023-08-29 01:59:23,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 787 transitions, 18198 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-08-29 01:59:23,696 INFO L231 Difference]: Finished difference. Result has 315 places, 217 transitions, 4034 flow [2023-08-29 01:59:23,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13459, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4034, PETRI_PLACES=315, PETRI_TRANSITIONS=217} [2023-08-29 01:59:23,697 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 270 predicate places. [2023-08-29 01:59:23,697 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 217 transitions, 4034 flow [2023-08-29 01:59:23,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 01:59:23,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:23,698 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:23,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-29 01:59:23,698 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:23,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:23,698 INFO L85 PathProgramCache]: Analyzing trace with hash -833565660, now seen corresponding path program 3 times [2023-08-29 01:59:23,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:23,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563870923] [2023-08-29 01:59:23,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:23,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:24,064 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 01:59:24,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:24,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563870923] [2023-08-29 01:59:24,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563870923] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:24,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:24,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 01:59:24,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117381709] [2023-08-29 01:59:24,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:24,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 01:59:24,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:24,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 01:59:24,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 01:59:24,362 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2023-08-29 01:59:24,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 217 transitions, 4034 flow. Second operand has 9 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 0 states have call successors, (0), 0 states 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 01:59:24,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:24,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2023-08-29 01:59:24,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:24,704 INFO L130 PetriNetUnfolder]: 289/793 cut-off events. [2023-08-29 01:59:24,705 INFO L131 PetriNetUnfolder]: For 19303/19303 co-relation queries the response was YES. [2023-08-29 01:59:24,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7524 conditions, 793 events. 289/793 cut-off events. For 19303/19303 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4210 event pairs, 50 based on Foata normal form. 11/802 useless extension candidates. Maximal degree in co-relation 7399. Up to 589 conditions per place. [2023-08-29 01:59:24,717 INFO L137 encePairwiseOnDemand]: 137/149 looper letters, 157 selfloop transitions, 35 changer transitions 30/256 dead transitions. [2023-08-29 01:59:24,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 256 transitions, 5171 flow [2023-08-29 01:59:24,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 01:59:24,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 01:59:24,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 769 transitions. [2023-08-29 01:59:24,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5734526472781506 [2023-08-29 01:59:24,719 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 769 transitions. [2023-08-29 01:59:24,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 769 transitions. [2023-08-29 01:59:24,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:24,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 769 transitions. [2023-08-29 01:59:24,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.44444444444444) internal successors, (769), 9 states have internal predecessors, (769), 0 states have call successors, (0), 0 states 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 01:59:24,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:59:24,722 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:59:24,722 INFO L175 Difference]: Start difference. First operand has 315 places, 217 transitions, 4034 flow. Second operand 9 states and 769 transitions. [2023-08-29 01:59:24,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 256 transitions, 5171 flow [2023-08-29 01:59:24,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 256 transitions, 3742 flow, removed 120 selfloop flow, removed 79 redundant places. [2023-08-29 01:59:24,792 INFO L231 Difference]: Finished difference. Result has 218 places, 217 transitions, 2885 flow [2023-08-29 01:59:24,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2791, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2885, PETRI_PLACES=218, PETRI_TRANSITIONS=217} [2023-08-29 01:59:24,793 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 173 predicate places. [2023-08-29 01:59:24,793 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 217 transitions, 2885 flow [2023-08-29 01:59:24,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 0 states have call successors, (0), 0 states 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 01:59:24,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:24,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:24,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-29 01:59:24,793 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:24,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:24,794 INFO L85 PathProgramCache]: Analyzing trace with hash -170968354, now seen corresponding path program 4 times [2023-08-29 01:59:24,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:24,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039730124] [2023-08-29 01:59:24,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:24,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:25,135 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 01:59:25,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:25,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039730124] [2023-08-29 01:59:25,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039730124] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:25,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:25,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 01:59:25,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785492345] [2023-08-29 01:59:25,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:25,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 01:59:25,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:25,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 01:59:25,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 01:59:25,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 149 [2023-08-29 01:59:25,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 217 transitions, 2885 flow. Second operand has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 0 states have call successors, (0), 0 states 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 01:59:25,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:25,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 149 [2023-08-29 01:59:25,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:25,798 INFO L130 PetriNetUnfolder]: 302/820 cut-off events. [2023-08-29 01:59:25,798 INFO L131 PetriNetUnfolder]: For 10729/10729 co-relation queries the response was YES. [2023-08-29 01:59:25,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6131 conditions, 820 events. 302/820 cut-off events. For 10729/10729 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4354 event pairs, 54 based on Foata normal form. 11/825 useless extension candidates. Maximal degree in co-relation 6043. Up to 502 conditions per place. [2023-08-29 01:59:25,806 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 151 selfloop transitions, 30 changer transitions 64/279 dead transitions. [2023-08-29 01:59:25,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 279 transitions, 4225 flow [2023-08-29 01:59:25,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 01:59:25,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 01:59:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 778 transitions. [2023-08-29 01:59:25,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5801640566741237 [2023-08-29 01:59:25,809 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 778 transitions. [2023-08-29 01:59:25,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 778 transitions. [2023-08-29 01:59:25,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:25,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 778 transitions. [2023-08-29 01:59:25,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.44444444444444) internal successors, (778), 9 states have internal predecessors, (778), 0 states have call successors, (0), 0 states 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 01:59:25,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:59:25,812 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:59:25,812 INFO L175 Difference]: Start difference. First operand has 218 places, 217 transitions, 2885 flow. Second operand 9 states and 778 transitions. [2023-08-29 01:59:25,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 279 transitions, 4225 flow [2023-08-29 01:59:25,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 279 transitions, 4034 flow, removed 30 selfloop flow, removed 10 redundant places. [2023-08-29 01:59:25,857 INFO L231 Difference]: Finished difference. Result has 218 places, 213 transitions, 2771 flow [2023-08-29 01:59:25,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2760, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2771, PETRI_PLACES=218, PETRI_TRANSITIONS=213} [2023-08-29 01:59:25,858 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 173 predicate places. [2023-08-29 01:59:25,858 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 213 transitions, 2771 flow [2023-08-29 01:59:25,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 0 states have call successors, (0), 0 states 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 01:59:25,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:25,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:25,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-29 01:59:25,859 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:25,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:25,859 INFO L85 PathProgramCache]: Analyzing trace with hash -787920113, now seen corresponding path program 4 times [2023-08-29 01:59:25,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:25,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756091202] [2023-08-29 01:59:25,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:25,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:26,340 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 01:59:26,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:26,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756091202] [2023-08-29 01:59:26,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756091202] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:26,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:26,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 01:59:26,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832946424] [2023-08-29 01:59:26,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:26,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 01:59:26,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:26,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 01:59:26,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 01:59:26,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 01:59:26,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 213 transitions, 2771 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 01:59:26,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:26,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 01:59:26,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:27,141 INFO L130 PetriNetUnfolder]: 291/798 cut-off events. [2023-08-29 01:59:27,141 INFO L131 PetriNetUnfolder]: For 10140/10140 co-relation queries the response was YES. [2023-08-29 01:59:27,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5965 conditions, 798 events. 291/798 cut-off events. For 10140/10140 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4279 event pairs, 32 based on Foata normal form. 9/806 useless extension candidates. Maximal degree in co-relation 5877. Up to 356 conditions per place. [2023-08-29 01:59:27,149 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 202 selfloop transitions, 37 changer transitions 81/326 dead transitions. [2023-08-29 01:59:27,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 326 transitions, 4409 flow [2023-08-29 01:59:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:59:27,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:59:27,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 769 transitions. [2023-08-29 01:59:27,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5161073825503356 [2023-08-29 01:59:27,150 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 769 transitions. [2023-08-29 01:59:27,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 769 transitions. [2023-08-29 01:59:27,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:27,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 769 transitions. [2023-08-29 01:59:27,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.9) internal successors, (769), 10 states have internal predecessors, (769), 0 states have call successors, (0), 0 states 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 01:59:27,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:27,152 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:27,152 INFO L175 Difference]: Start difference. First operand has 218 places, 213 transitions, 2771 flow. Second operand 10 states and 769 transitions. [2023-08-29 01:59:27,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 326 transitions, 4409 flow [2023-08-29 01:59:27,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 326 transitions, 4146 flow, removed 26 selfloop flow, removed 12 redundant places. [2023-08-29 01:59:27,188 INFO L231 Difference]: Finished difference. Result has 215 places, 195 transitions, 2456 flow [2023-08-29 01:59:27,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2569, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2456, PETRI_PLACES=215, PETRI_TRANSITIONS=195} [2023-08-29 01:59:27,189 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 170 predicate places. [2023-08-29 01:59:27,189 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 195 transitions, 2456 flow [2023-08-29 01:59:27,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 01:59:27,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:27,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:27,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-29 01:59:27,190 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:27,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:27,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2129359247, now seen corresponding path program 5 times [2023-08-29 01:59:27,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:27,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394850042] [2023-08-29 01:59:27,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:27,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:27,663 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 01:59:27,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:27,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394850042] [2023-08-29 01:59:27,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394850042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:27,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:27,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 01:59:27,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384003869] [2023-08-29 01:59:27,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:27,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 01:59:27,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:27,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 01:59:27,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-08-29 01:59:27,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 01:59:27,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 195 transitions, 2456 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 01:59:27,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:27,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 01:59:27,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:28,321 INFO L130 PetriNetUnfolder]: 239/693 cut-off events. [2023-08-29 01:59:28,321 INFO L131 PetriNetUnfolder]: For 8478/8478 co-relation queries the response was YES. [2023-08-29 01:59:28,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5159 conditions, 693 events. 239/693 cut-off events. For 8478/8478 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3636 event pairs, 39 based on Foata normal form. 4/697 useless extension candidates. Maximal degree in co-relation 5073. Up to 476 conditions per place. [2023-08-29 01:59:28,326 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 149 selfloop transitions, 31 changer transitions 42/228 dead transitions. [2023-08-29 01:59:28,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 228 transitions, 3131 flow [2023-08-29 01:59:28,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 01:59:28,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 01:59:28,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 672 transitions. [2023-08-29 01:59:28,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5011185682326622 [2023-08-29 01:59:28,328 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 672 transitions. [2023-08-29 01:59:28,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 672 transitions. [2023-08-29 01:59:28,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:28,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 672 transitions. [2023-08-29 01:59:28,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.66666666666667) internal successors, (672), 9 states have internal predecessors, (672), 0 states have call successors, (0), 0 states 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 01:59:28,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:59:28,331 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states 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 01:59:28,331 INFO L175 Difference]: Start difference. First operand has 215 places, 195 transitions, 2456 flow. Second operand 9 states and 672 transitions. [2023-08-29 01:59:28,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 228 transitions, 3131 flow [2023-08-29 01:59:28,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 228 transitions, 3010 flow, removed 7 selfloop flow, removed 11 redundant places. [2023-08-29 01:59:28,369 INFO L231 Difference]: Finished difference. Result has 213 places, 176 transitions, 2082 flow [2023-08-29 01:59:28,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2337, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2082, PETRI_PLACES=213, PETRI_TRANSITIONS=176} [2023-08-29 01:59:28,370 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 168 predicate places. [2023-08-29 01:59:28,370 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 176 transitions, 2082 flow [2023-08-29 01:59:28,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 01:59:28,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:28,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:28,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-29 01:59:28,370 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:28,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:28,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1301568573, now seen corresponding path program 6 times [2023-08-29 01:59:28,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:28,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477429639] [2023-08-29 01:59:28,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:28,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:28,768 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 01:59:28,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:28,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477429639] [2023-08-29 01:59:28,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477429639] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:28,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:28,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 01:59:28,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420551044] [2023-08-29 01:59:28,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:28,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 01:59:28,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:28,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 01:59:28,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 01:59:29,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 01:59:29,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 176 transitions, 2082 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 01:59:29,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:29,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 01:59:29,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:29,421 INFO L130 PetriNetUnfolder]: 203/569 cut-off events. [2023-08-29 01:59:29,421 INFO L131 PetriNetUnfolder]: For 6774/6774 co-relation queries the response was YES. [2023-08-29 01:59:29,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4158 conditions, 569 events. 203/569 cut-off events. For 6774/6774 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2680 event pairs, 27 based on Foata normal form. 9/577 useless extension candidates. Maximal degree in co-relation 4074. Up to 333 conditions per place. [2023-08-29 01:59:29,426 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 135 selfloop transitions, 24 changer transitions 76/241 dead transitions. [2023-08-29 01:59:29,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 241 transitions, 3053 flow [2023-08-29 01:59:29,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:59:29,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:59:29,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 754 transitions. [2023-08-29 01:59:29,427 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5060402684563758 [2023-08-29 01:59:29,427 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 754 transitions. [2023-08-29 01:59:29,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 754 transitions. [2023-08-29 01:59:29,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:29,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 754 transitions. [2023-08-29 01:59:29,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.4) internal successors, (754), 10 states have internal predecessors, (754), 0 states have call successors, (0), 0 states 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 01:59:29,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:29,429 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:29,429 INFO L175 Difference]: Start difference. First operand has 213 places, 176 transitions, 2082 flow. Second operand 10 states and 754 transitions. [2023-08-29 01:59:29,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 241 transitions, 3053 flow [2023-08-29 01:59:29,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 241 transitions, 2849 flow, removed 16 selfloop flow, removed 20 redundant places. [2023-08-29 01:59:29,453 INFO L231 Difference]: Finished difference. Result has 201 places, 155 transitions, 1660 flow [2023-08-29 01:59:29,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1878, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1660, PETRI_PLACES=201, PETRI_TRANSITIONS=155} [2023-08-29 01:59:29,453 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 156 predicate places. [2023-08-29 01:59:29,453 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 155 transitions, 1660 flow [2023-08-29 01:59:29,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 01:59:29,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:29,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:29,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-29 01:59:29,454 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:29,455 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:29,455 INFO L85 PathProgramCache]: Analyzing trace with hash -549311811, now seen corresponding path program 7 times [2023-08-29 01:59:29,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:29,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295586399] [2023-08-29 01:59:29,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:29,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:29,934 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 01:59:29,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:29,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295586399] [2023-08-29 01:59:29,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295586399] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:29,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:29,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 01:59:29,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557385799] [2023-08-29 01:59:29,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:29,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 01:59:29,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:29,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 01:59:29,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 01:59:30,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 01:59:30,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 155 transitions, 1660 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 01:59:30,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:30,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 01:59:30,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:30,810 INFO L130 PetriNetUnfolder]: 148/423 cut-off events. [2023-08-29 01:59:30,810 INFO L131 PetriNetUnfolder]: For 3517/3517 co-relation queries the response was YES. [2023-08-29 01:59:30,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2750 conditions, 423 events. 148/423 cut-off events. For 3517/3517 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1774 event pairs, 21 based on Foata normal form. 9/431 useless extension candidates. Maximal degree in co-relation 2674. Up to 106 conditions per place. [2023-08-29 01:59:30,814 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 46 selfloop transitions, 9 changer transitions 193/250 dead transitions. [2023-08-29 01:59:30,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 250 transitions, 2944 flow [2023-08-29 01:59:30,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 01:59:30,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 01:59:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 766 transitions. [2023-08-29 01:59:30,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5140939597315436 [2023-08-29 01:59:30,816 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 766 transitions. [2023-08-29 01:59:30,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 766 transitions. [2023-08-29 01:59:30,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:30,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 766 transitions. [2023-08-29 01:59:30,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.6) internal successors, (766), 10 states have internal predecessors, (766), 0 states have call successors, (0), 0 states 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 01:59:30,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:30,821 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 01:59:30,821 INFO L175 Difference]: Start difference. First operand has 201 places, 155 transitions, 1660 flow. Second operand 10 states and 766 transitions. [2023-08-29 01:59:30,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 250 transitions, 2944 flow [2023-08-29 01:59:30,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 250 transitions, 2774 flow, removed 7 selfloop flow, removed 20 redundant places. [2023-08-29 01:59:30,835 INFO L231 Difference]: Finished difference. Result has 183 places, 55 transitions, 519 flow [2023-08-29 01:59:30,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1476, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=519, PETRI_PLACES=183, PETRI_TRANSITIONS=55} [2023-08-29 01:59:30,836 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 138 predicate places. [2023-08-29 01:59:30,836 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 55 transitions, 519 flow [2023-08-29 01:59:30,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states 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 01:59:30,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:30,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:30,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-29 01:59:30,836 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:59:30,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:30,837 INFO L85 PathProgramCache]: Analyzing trace with hash -282308628, now seen corresponding path program 5 times [2023-08-29 01:59:30,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:30,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893195617] [2023-08-29 01:59:30,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:30,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:31,095 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 01:59:31,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:31,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893195617] [2023-08-29 01:59:31,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893195617] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:31,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:31,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 01:59:31,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936769379] [2023-08-29 01:59:31,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:31,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 01:59:31,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:31,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 01:59:31,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-29 01:59:31,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2023-08-29 01:59:31,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 55 transitions, 519 flow. Second operand has 9 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 0 states have call successors, (0), 0 states 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 01:59:31,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:31,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2023-08-29 01:59:31,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:31,442 INFO L130 PetriNetUnfolder]: 21/92 cut-off events. [2023-08-29 01:59:31,442 INFO L131 PetriNetUnfolder]: For 536/536 co-relation queries the response was YES. [2023-08-29 01:59:31,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 92 events. 21/92 cut-off events. For 536/536 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 162 event pairs, 0 based on Foata normal form. 11/103 useless extension candidates. Maximal degree in co-relation 509. Up to 27 conditions per place. [2023-08-29 01:59:31,443 INFO L137 encePairwiseOnDemand]: 142/149 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2023-08-29 01:59:31,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 78 transitions, 878 flow [2023-08-29 01:59:31,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 01:59:31,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 01:59:31,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 663 transitions. [2023-08-29 01:59:31,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5562080536912751 [2023-08-29 01:59:31,444 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 663 transitions. [2023-08-29 01:59:31,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 663 transitions. [2023-08-29 01:59:31,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:31,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 663 transitions. [2023-08-29 01:59:31,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 82.875) internal successors, (663), 8 states have internal predecessors, (663), 0 states have call successors, (0), 0 states 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 01:59:31,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states 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 01:59:31,447 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states 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 01:59:31,447 INFO L175 Difference]: Start difference. First operand has 183 places, 55 transitions, 519 flow. Second operand 8 states and 663 transitions. [2023-08-29 01:59:31,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 78 transitions, 878 flow [2023-08-29 01:59:31,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 78 transitions, 497 flow, removed 35 selfloop flow, removed 75 redundant places. [2023-08-29 01:59:31,451 INFO L231 Difference]: Finished difference. Result has 87 places, 0 transitions, 0 flow [2023-08-29 01:59:31,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=87, PETRI_TRANSITIONS=0} [2023-08-29 01:59:31,451 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 42 predicate places. [2023-08-29 01:59:31,452 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 0 transitions, 0 flow [2023-08-29 01:59:31,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 0 states have call successors, (0), 0 states 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 01:59:31,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-29 01:59:31,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-29 01:59:31,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-29 01:59:31,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-29 01:59:31,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-29 01:59:31,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-29 01:59:31,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-29 01:59:31,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-29 01:59:31,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-29 01:59:31,458 INFO L445 BasicCegarLoop]: Path program histogram: [7, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1] [2023-08-29 01:59:31,462 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:59:31,463 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:59:31,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:59:31 BasicIcfg [2023-08-29 01:59:31,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:59:31,466 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:59:31,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:59:31,467 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:59:31,467 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:58:00" (3/4) ... [2023-08-29 01:59:31,469 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 01:59:31,474 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 01:59:31,478 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-08-29 01:59:31,478 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 01:59:31,478 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 01:59:31,505 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 01:59:31,505 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:59:31,506 INFO L158 Benchmark]: Toolchain (without parser) took 92340.69ms. Allocated memory was 90.2MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 66.6MB in the beginning and 872.1MB in the end (delta: -805.5MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2023-08-29 01:59:31,506 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:59:31,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 575.06ms. Allocated memory is still 90.2MB. Free memory was 66.6MB in the beginning and 62.6MB in the end (delta: 3.9MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2023-08-29 01:59:31,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.87ms. Allocated memory is still 90.2MB. Free memory was 62.6MB in the beginning and 60.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 01:59:31,507 INFO L158 Benchmark]: Boogie Preprocessor took 47.44ms. Allocated memory is still 90.2MB. Free memory was 60.0MB in the beginning and 58.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:59:31,507 INFO L158 Benchmark]: RCFGBuilder took 466.87ms. Allocated memory is still 90.2MB. Free memory was 58.0MB in the beginning and 41.5MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 01:59:31,507 INFO L158 Benchmark]: TraceAbstraction took 91098.17ms. Allocated memory was 90.2MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 65.1MB in the beginning and 875.2MB in the end (delta: -810.1MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2023-08-29 01:59:31,508 INFO L158 Benchmark]: Witness Printer took 39.07ms. Allocated memory is still 2.0GB. Free memory was 875.2MB in the beginning and 872.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:59:31,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 575.06ms. Allocated memory is still 90.2MB. Free memory was 66.6MB in the beginning and 62.6MB in the end (delta: 3.9MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.87ms. Allocated memory is still 90.2MB. Free memory was 62.6MB in the beginning and 60.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.44ms. Allocated memory is still 90.2MB. Free memory was 60.0MB in the beginning and 58.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 466.87ms. Allocated memory is still 90.2MB. Free memory was 58.0MB in the beginning and 41.5MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 91098.17ms. Allocated memory was 90.2MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 65.1MB in the beginning and 875.2MB in the end (delta: -810.1MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 39.07ms. Allocated memory is still 2.0GB. Free memory was 875.2MB in the beginning and 872.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 95 PlacesBefore, 45 PlacesAfterwards, 91 TransitionsBefore, 41 TransitionsAfterwards, 1836 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, 10947 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2229, independent: 1730, independent conditional: 0, independent unconditional: 1730, dependent: 499, dependent conditional: 0, dependent unconditional: 499, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 709, independent: 665, independent conditional: 0, independent unconditional: 665, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2229, independent: 1065, independent conditional: 0, independent unconditional: 1065, dependent: 455, dependent conditional: 0, dependent unconditional: 455, unknown: 709, unknown conditional: 0, unknown unconditional: 709] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 85, Positive conditional cache size: 0, Positive unconditional cache size: 85, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 934]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 129 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 90.9s, OverallIterations: 41, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 75.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10906 SdHoareTripleChecker+Valid, 20.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8667 mSDsluCounter, 5097 SdHoareTripleChecker+Invalid, 17.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4295 mSDsCounter, 2524 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36755 IncrementalHoareTripleChecker+Invalid, 39279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2524 mSolverCounterUnsat, 802 mSDtfsCounter, 36755 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 641 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 540 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33080occurred in iteration=28, InterpolantAutomatonStates: 380, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 874 NumberOfCodeBlocks, 874 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 833 ConstructedInterpolants, 0 QuantifiedInterpolants, 14682 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 41 InterpolantComputations, 41 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 01:59:31,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE