./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.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 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:45:00,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:45:00,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:45:00,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:45:00,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:45:00,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:45:00,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:45:00,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:45:00,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:45:00,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:45:00,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:45:00,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:45:00,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:45:00,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:45:00,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:45:00,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:45:00,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:45:00,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:45:00,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:45:00,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:45:00,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:45:00,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:45:00,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:45:00,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:45:00,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:45:00,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:45:00,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:45:00,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:45:00,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:45:00,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:45:00,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:45:00,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:45:00,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:45:00,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:45:00,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:45:00,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:45:00,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:45:00,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:45:00,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:45:00,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:45:00,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:45:00,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:45:00,154 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:45:00,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:45:00,155 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:45:00,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:45:00,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:45:00,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:45:00,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:45:00,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:45:00,158 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:45:00,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:45:00,159 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:45:00,159 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:45:00,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:45:00,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:45:00,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:45:00,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:45:00,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:45:00,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:45:00,160 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:45:00,160 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:45:00,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:45:00,161 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:45:00,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:45:00,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:45:00,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:45:00,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:45:00,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:45:00,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:45:00,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:45:00,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:45:00,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:45:00,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:45:00,163 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:45:00,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:45:00,163 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:45:00,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:45:00,164 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:45:00,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:45:00,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:45:00,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:45:00,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:45:00,469 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:45:00,469 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:45:00,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-29 18:45:01,698 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:45:01,960 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:45:01,961 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-29 18:45:01,974 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f27c80b/96fdb44ae90642929d9242aea34821d3/FLAGd32548820 [2023-08-29 18:45:01,989 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f27c80b/96fdb44ae90642929d9242aea34821d3 [2023-08-29 18:45:01,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:45:01,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:45:01,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:45:01,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:45:02,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:45:02,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:45:01" (1/1) ... [2023-08-29 18:45:02,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2326fb94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02, skipping insertion in model container [2023-08-29 18:45:02,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:45:01" (1/1) ... [2023-08-29 18:45:02,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:45:02,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:45:02,171 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-08-29 18:45:02,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:45:02,327 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:45:02,341 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-08-29 18:45:02,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:45:02,421 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:45:02,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02 WrapperNode [2023-08-29 18:45:02,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:45:02,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:45:02,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:45:02,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:45:02,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02" (1/1) ... [2023-08-29 18:45:02,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02" (1/1) ... [2023-08-29 18:45:02,491 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 173 [2023-08-29 18:45:02,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:45:02,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:45:02,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:45:02,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:45:02,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02" (1/1) ... [2023-08-29 18:45:02,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02" (1/1) ... [2023-08-29 18:45:02,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02" (1/1) ... [2023-08-29 18:45:02,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02" (1/1) ... [2023-08-29 18:45:02,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02" (1/1) ... [2023-08-29 18:45:02,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02" (1/1) ... [2023-08-29 18:45:02,535 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02" (1/1) ... [2023-08-29 18:45:02,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02" (1/1) ... [2023-08-29 18:45:02,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:45:02,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:45:02,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:45:02,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:45:02,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02" (1/1) ... [2023-08-29 18:45:02,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:45:02,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:45:02,569 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 18:45:02,576 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 18:45:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:45:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 18:45:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:45:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:45:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 18:45:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 18:45:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:45:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:45:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:45:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:45:02,605 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 18:45:02,743 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:45:02,745 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:45:03,053 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:45:03,062 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:45:03,062 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 18:45:03,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:45:03 BoogieIcfgContainer [2023-08-29 18:45:03,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:45:03,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:45:03,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:45:03,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:45:03,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:45:01" (1/3) ... [2023-08-29 18:45:03,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea97b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:45:03, skipping insertion in model container [2023-08-29 18:45:03,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:45:02" (2/3) ... [2023-08-29 18:45:03,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea97b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:45:03, skipping insertion in model container [2023-08-29 18:45:03,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:45:03" (3/3) ... [2023-08-29 18:45:03,071 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-29 18:45:03,078 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:45:03,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:45:03,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-29 18:45:03,087 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:45:03,159 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 18:45:03,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 202 transitions, 409 flow [2023-08-29 18:45:03,269 INFO L130 PetriNetUnfolder]: 8/204 cut-off events. [2023-08-29 18:45:03,269 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:45:03,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 204 events. 8/204 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 211 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 157. Up to 2 conditions per place. [2023-08-29 18:45:03,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 197 places, 202 transitions, 409 flow [2023-08-29 18:45:03,282 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 200 transitions, 403 flow [2023-08-29 18:45:03,286 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:45:03,295 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 200 transitions, 403 flow [2023-08-29 18:45:03,297 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 200 transitions, 403 flow [2023-08-29 18:45:03,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 200 transitions, 403 flow [2023-08-29 18:45:03,336 INFO L130 PetriNetUnfolder]: 8/200 cut-off events. [2023-08-29 18:45:03,337 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:45:03,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 200 events. 8/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 203 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 157. Up to 2 conditions per place. [2023-08-29 18:45:03,344 INFO L119 LiptonReduction]: Number of co-enabled transitions 12180 [2023-08-29 18:45:07,790 INFO L134 LiptonReduction]: Checked pairs total: 32354 [2023-08-29 18:45:07,790 INFO L136 LiptonReduction]: Total number of compositions: 175 [2023-08-29 18:45:07,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:45:07,809 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;@211749c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:45:07,809 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-08-29 18:45:07,813 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-29 18:45:07,813 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:45:07,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:07,814 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 18:45:07,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:07,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:07,819 INFO L85 PathProgramCache]: Analyzing trace with hash 195755589, now seen corresponding path program 1 times [2023-08-29 18:45:07,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:07,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334803201] [2023-08-29 18:45:07,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:07,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:08,081 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 18:45:08,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:08,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334803201] [2023-08-29 18:45:08,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334803201] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:08,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:08,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:45:08,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747340060] [2023-08-29 18:45:08,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:08,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:45:08,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:08,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:45:08,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:45:08,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 377 [2023-08-29 18:45:08,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:08,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 377 [2023-08-29 18:45:08,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:08,384 INFO L130 PetriNetUnfolder]: 318/966 cut-off events. [2023-08-29 18:45:08,396 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:45:08,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1648 conditions, 966 events. 318/966 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 5894 event pairs, 59 based on Foata normal form. 29/910 useless extension candidates. Maximal degree in co-relation 1639. Up to 346 conditions per place. [2023-08-29 18:45:08,404 INFO L137 encePairwiseOnDemand]: 372/377 looper letters, 54 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2023-08-29 18:45:08,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 78 transitions, 273 flow [2023-08-29 18:45:08,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:45:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:45:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 621 transitions. [2023-08-29 18:45:08,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5490716180371353 [2023-08-29 18:45:08,450 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 621 transitions. [2023-08-29 18:45:08,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 621 transitions. [2023-08-29 18:45:08,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:08,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 621 transitions. [2023-08-29 18:45:08,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,464 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,466 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 113 flow. Second operand 3 states and 621 transitions. [2023-08-29 18:45:08,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 78 transitions, 273 flow [2023-08-29 18:45:08,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 78 transitions, 272 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:45:08,471 INFO L231 Difference]: Finished difference. Result has 59 places, 55 transitions, 130 flow [2023-08-29 18:45:08,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=59, PETRI_TRANSITIONS=55} [2023-08-29 18:45:08,476 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-08-29 18:45:08,476 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 130 flow [2023-08-29 18:45:08,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:08,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:45:08,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:45:08,478 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:08,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:08,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1725663993, now seen corresponding path program 1 times [2023-08-29 18:45:08,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:08,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821910531] [2023-08-29 18:45:08,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:08,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:08,524 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 18:45:08,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:08,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821910531] [2023-08-29 18:45:08,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821910531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:08,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:08,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:45:08,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155664974] [2023-08-29 18:45:08,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:08,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:45:08,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:08,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:45:08,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:45:08,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 377 [2023-08-29 18:45:08,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:08,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 377 [2023-08-29 18:45:08,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:08,718 INFO L130 PetriNetUnfolder]: 378/1079 cut-off events. [2023-08-29 18:45:08,718 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2023-08-29 18:45:08,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1972 conditions, 1079 events. 378/1079 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 6335 event pairs, 325 based on Foata normal form. 0/984 useless extension candidates. Maximal degree in co-relation 1962. Up to 754 conditions per place. [2023-08-29 18:45:08,723 INFO L137 encePairwiseOnDemand]: 371/377 looper letters, 47 selfloop transitions, 5 changer transitions 0/71 dead transitions. [2023-08-29 18:45:08,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 71 transitions, 270 flow [2023-08-29 18:45:08,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:45:08,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:45:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 598 transitions. [2023-08-29 18:45:08,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2023-08-29 18:45:08,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 598 transitions. [2023-08-29 18:45:08,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 598 transitions. [2023-08-29 18:45:08,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:08,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 598 transitions. [2023-08-29 18:45:08,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,732 INFO L175 Difference]: Start difference. First operand has 59 places, 55 transitions, 130 flow. Second operand 3 states and 598 transitions. [2023-08-29 18:45:08,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 71 transitions, 270 flow [2023-08-29 18:45:08,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 262 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:45:08,735 INFO L231 Difference]: Finished difference. Result has 61 places, 59 transitions, 162 flow [2023-08-29 18:45:08,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=61, PETRI_TRANSITIONS=59} [2023-08-29 18:45:08,736 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2023-08-29 18:45:08,737 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 59 transitions, 162 flow [2023-08-29 18:45:08,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:08,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:45:08,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:45:08,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:08,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:08,738 INFO L85 PathProgramCache]: Analyzing trace with hash -810340528, now seen corresponding path program 1 times [2023-08-29 18:45:08,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:08,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644616744] [2023-08-29 18:45:08,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:08,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:08,779 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 18:45:08,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:08,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644616744] [2023-08-29 18:45:08,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644616744] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:08,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:08,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:45:08,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65689122] [2023-08-29 18:45:08,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:08,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:45:08,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:08,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:45:08,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:45:08,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 377 [2023-08-29 18:45:08,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 59 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:08,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 377 [2023-08-29 18:45:08,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:08,984 INFO L130 PetriNetUnfolder]: 550/1579 cut-off events. [2023-08-29 18:45:08,984 INFO L131 PetriNetUnfolder]: For 76/94 co-relation queries the response was YES. [2023-08-29 18:45:08,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2954 conditions, 1579 events. 550/1579 cut-off events. For 76/94 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 10845 event pairs, 83 based on Foata normal form. 9/1479 useless extension candidates. Maximal degree in co-relation 2943. Up to 596 conditions per place. [2023-08-29 18:45:08,991 INFO L137 encePairwiseOnDemand]: 372/377 looper letters, 58 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2023-08-29 18:45:08,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 344 flow [2023-08-29 18:45:08,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:45:08,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:45:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 619 transitions. [2023-08-29 18:45:08,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5473032714412025 [2023-08-29 18:45:08,994 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 619 transitions. [2023-08-29 18:45:08,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 619 transitions. [2023-08-29 18:45:08,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:08,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 619 transitions. [2023-08-29 18:45:08,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,998 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:08,998 INFO L175 Difference]: Start difference. First operand has 61 places, 59 transitions, 162 flow. Second operand 3 states and 619 transitions. [2023-08-29 18:45:08,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 344 flow [2023-08-29 18:45:09,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 85 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:45:09,002 INFO L231 Difference]: Finished difference. Result has 63 places, 62 transitions, 182 flow [2023-08-29 18:45:09,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=63, PETRI_TRANSITIONS=62} [2023-08-29 18:45:09,003 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2023-08-29 18:45:09,003 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 62 transitions, 182 flow [2023-08-29 18:45:09,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:09,003 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:45:09,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:45:09,004 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:09,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:09,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1501933197, now seen corresponding path program 1 times [2023-08-29 18:45:09,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:09,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546744905] [2023-08-29 18:45:09,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:09,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:09,035 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 18:45:09,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:09,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546744905] [2023-08-29 18:45:09,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546744905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:09,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:09,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:45:09,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524921650] [2023-08-29 18:45:09,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:09,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:45:09,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:09,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:45:09,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:45:09,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 377 [2023-08-29 18:45:09,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 62 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,047 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:09,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 377 [2023-08-29 18:45:09,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:09,211 INFO L130 PetriNetUnfolder]: 472/1458 cut-off events. [2023-08-29 18:45:09,211 INFO L131 PetriNetUnfolder]: For 118/138 co-relation queries the response was YES. [2023-08-29 18:45:09,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2757 conditions, 1458 events. 472/1458 cut-off events. For 118/138 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10133 event pairs, 390 based on Foata normal form. 9/1335 useless extension candidates. Maximal degree in co-relation 2745. Up to 974 conditions per place. [2023-08-29 18:45:09,219 INFO L137 encePairwiseOnDemand]: 373/377 looper letters, 43 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2023-08-29 18:45:09,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 75 transitions, 304 flow [2023-08-29 18:45:09,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:45:09,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:45:09,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 597 transitions. [2023-08-29 18:45:09,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5278514588859416 [2023-08-29 18:45:09,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 597 transitions. [2023-08-29 18:45:09,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 597 transitions. [2023-08-29 18:45:09,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:09,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 597 transitions. [2023-08-29 18:45:09,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,226 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,227 INFO L175 Difference]: Start difference. First operand has 63 places, 62 transitions, 182 flow. Second operand 3 states and 597 transitions. [2023-08-29 18:45:09,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 75 transitions, 304 flow [2023-08-29 18:45:09,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 75 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:45:09,230 INFO L231 Difference]: Finished difference. Result has 64 places, 64 transitions, 198 flow [2023-08-29 18:45:09,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2023-08-29 18:45:09,231 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-08-29 18:45:09,231 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 198 flow [2023-08-29 18:45:09,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:09,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:45:09,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:45:09,232 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:09,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:09,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1476521583, now seen corresponding path program 1 times [2023-08-29 18:45:09,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:09,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247738420] [2023-08-29 18:45:09,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:09,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:09,320 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 18:45:09,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:09,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247738420] [2023-08-29 18:45:09,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247738420] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:09,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:09,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:45:09,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891782698] [2023-08-29 18:45:09,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:09,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:45:09,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:09,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:45:09,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:45:09,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 377 [2023-08-29 18:45:09,354 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 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 18:45:09,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:09,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 377 [2023-08-29 18:45:09,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:09,471 INFO L130 PetriNetUnfolder]: 251/782 cut-off events. [2023-08-29 18:45:09,471 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2023-08-29 18:45:09,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1547 conditions, 782 events. 251/782 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4422 event pairs, 95 based on Foata normal form. 19/737 useless extension candidates. Maximal degree in co-relation 1534. Up to 345 conditions per place. [2023-08-29 18:45:09,475 INFO L137 encePairwiseOnDemand]: 367/377 looper letters, 53 selfloop transitions, 10 changer transitions 0/85 dead transitions. [2023-08-29 18:45:09,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 367 flow [2023-08-29 18:45:09,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:45:09,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:45:09,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2023-08-29 18:45:09,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5322723253757736 [2023-08-29 18:45:09,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 602 transitions. [2023-08-29 18:45:09,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 602 transitions. [2023-08-29 18:45:09,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:09,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 602 transitions. [2023-08-29 18:45:09,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,483 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 198 flow. Second operand 3 states and 602 transitions. [2023-08-29 18:45:09,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 367 flow [2023-08-29 18:45:09,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 85 transitions, 344 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-29 18:45:09,486 INFO L231 Difference]: Finished difference. Result has 61 places, 64 transitions, 210 flow [2023-08-29 18:45:09,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=61, PETRI_TRANSITIONS=64} [2023-08-29 18:45:09,487 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2023-08-29 18:45:09,487 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 210 flow [2023-08-29 18:45:09,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 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 18:45:09,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:09,488 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:45:09,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:45:09,488 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:09,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:09,489 INFO L85 PathProgramCache]: Analyzing trace with hash 889366370, now seen corresponding path program 1 times [2023-08-29 18:45:09,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:09,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700837226] [2023-08-29 18:45:09,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:09,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:09,520 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 18:45:09,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:09,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700837226] [2023-08-29 18:45:09,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700837226] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:09,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:09,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:45:09,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83600939] [2023-08-29 18:45:09,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:09,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:45:09,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:09,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:45:09,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:45:09,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 377 [2023-08-29 18:45:09,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:09,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 377 [2023-08-29 18:45:09,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:09,628 INFO L130 PetriNetUnfolder]: 250/786 cut-off events. [2023-08-29 18:45:09,628 INFO L131 PetriNetUnfolder]: For 155/159 co-relation queries the response was YES. [2023-08-29 18:45:09,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 786 events. 250/786 cut-off events. For 155/159 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4463 event pairs, 187 based on Foata normal form. 2/712 useless extension candidates. Maximal degree in co-relation 1746. Up to 525 conditions per place. [2023-08-29 18:45:09,632 INFO L137 encePairwiseOnDemand]: 374/377 looper letters, 45 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2023-08-29 18:45:09,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 71 transitions, 330 flow [2023-08-29 18:45:09,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:45:09,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:45:09,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 589 transitions. [2023-08-29 18:45:09,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5207780725022104 [2023-08-29 18:45:09,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 589 transitions. [2023-08-29 18:45:09,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 589 transitions. [2023-08-29 18:45:09,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:09,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 589 transitions. [2023-08-29 18:45:09,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,640 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,640 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 210 flow. Second operand 3 states and 589 transitions. [2023-08-29 18:45:09,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 71 transitions, 330 flow [2023-08-29 18:45:09,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 71 transitions, 318 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:45:09,643 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 206 flow [2023-08-29 18:45:09,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2023-08-29 18:45:09,644 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2023-08-29 18:45:09,644 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 206 flow [2023-08-29 18:45:09,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:09,645 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:45:09,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:45:09,645 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:09,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:09,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1603755271, now seen corresponding path program 1 times [2023-08-29 18:45:09,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:09,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753414993] [2023-08-29 18:45:09,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:09,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:09,695 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 18:45:09,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:09,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753414993] [2023-08-29 18:45:09,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753414993] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:09,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:09,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:45:09,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191385085] [2023-08-29 18:45:09,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:09,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:45:09,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:09,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:45:09,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:45:09,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 377 [2023-08-29 18:45:09,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:09,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 377 [2023-08-29 18:45:09,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:09,826 INFO L130 PetriNetUnfolder]: 316/942 cut-off events. [2023-08-29 18:45:09,826 INFO L131 PetriNetUnfolder]: For 202/208 co-relation queries the response was YES. [2023-08-29 18:45:09,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2100 conditions, 942 events. 316/942 cut-off events. For 202/208 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 5437 event pairs, 226 based on Foata normal form. 2/839 useless extension candidates. Maximal degree in co-relation 2087. Up to 658 conditions per place. [2023-08-29 18:45:09,831 INFO L137 encePairwiseOnDemand]: 372/377 looper letters, 58 selfloop transitions, 5 changer transitions 0/82 dead transitions. [2023-08-29 18:45:09,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 82 transitions, 392 flow [2023-08-29 18:45:09,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:45:09,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:45:09,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2023-08-29 18:45:09,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5322723253757736 [2023-08-29 18:45:09,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 602 transitions. [2023-08-29 18:45:09,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 602 transitions. [2023-08-29 18:45:09,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:09,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 602 transitions. [2023-08-29 18:45:09,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,838 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 206 flow. Second operand 3 states and 602 transitions. [2023-08-29 18:45:09,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 82 transitions, 392 flow [2023-08-29 18:45:09,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 82 transitions, 380 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:45:09,840 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 229 flow [2023-08-29 18:45:09,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2023-08-29 18:45:09,841 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 5 predicate places. [2023-08-29 18:45:09,841 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 229 flow [2023-08-29 18:45:09,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:09,842 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:45:09,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:45:09,842 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:09,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:09,843 INFO L85 PathProgramCache]: Analyzing trace with hash -684315748, now seen corresponding path program 1 times [2023-08-29 18:45:09,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:09,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561149199] [2023-08-29 18:45:09,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:09,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:09,870 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 18:45:09,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:09,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561149199] [2023-08-29 18:45:09,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561149199] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:09,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:09,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:45:09,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867883199] [2023-08-29 18:45:09,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:09,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:45:09,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:09,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:45:09,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:45:09,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 377 [2023-08-29 18:45:09,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:09,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:09,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 377 [2023-08-29 18:45:09,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:10,007 INFO L130 PetriNetUnfolder]: 411/1172 cut-off events. [2023-08-29 18:45:10,008 INFO L131 PetriNetUnfolder]: For 390/418 co-relation queries the response was YES. [2023-08-29 18:45:10,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2816 conditions, 1172 events. 411/1172 cut-off events. For 390/418 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 7153 event pairs, 159 based on Foata normal form. 3/1073 useless extension candidates. Maximal degree in co-relation 2802. Up to 609 conditions per place. [2023-08-29 18:45:10,015 INFO L137 encePairwiseOnDemand]: 372/377 looper letters, 66 selfloop transitions, 5 changer transitions 2/91 dead transitions. [2023-08-29 18:45:10,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 91 transitions, 457 flow [2023-08-29 18:45:10,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:45:10,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:45:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2023-08-29 18:45:10,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5411140583554377 [2023-08-29 18:45:10,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 612 transitions. [2023-08-29 18:45:10,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 612 transitions. [2023-08-29 18:45:10,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:10,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 612 transitions. [2023-08-29 18:45:10,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,021 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,022 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 229 flow. Second operand 3 states and 612 transitions. [2023-08-29 18:45:10,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 91 transitions, 457 flow [2023-08-29 18:45:10,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 91 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:45:10,033 INFO L231 Difference]: Finished difference. Result has 65 places, 68 transitions, 260 flow [2023-08-29 18:45:10,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=65, PETRI_TRANSITIONS=68} [2023-08-29 18:45:10,034 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2023-08-29 18:45:10,034 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 68 transitions, 260 flow [2023-08-29 18:45:10,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:10,035 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 18:45:10,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 18:45:10,036 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:10,036 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:10,036 INFO L85 PathProgramCache]: Analyzing trace with hash -904642401, now seen corresponding path program 1 times [2023-08-29 18:45:10,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:10,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239755741] [2023-08-29 18:45:10,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:10,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:10,077 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 18:45:10,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:10,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239755741] [2023-08-29 18:45:10,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239755741] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:10,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:10,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:45:10,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410153680] [2023-08-29 18:45:10,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:10,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:45:10,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:10,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:45:10,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:45:10,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 377 [2023-08-29 18:45:10,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 68 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:10,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 377 [2023-08-29 18:45:10,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:10,208 INFO L130 PetriNetUnfolder]: 344/1022 cut-off events. [2023-08-29 18:45:10,208 INFO L131 PetriNetUnfolder]: For 405/452 co-relation queries the response was YES. [2023-08-29 18:45:10,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2521 conditions, 1022 events. 344/1022 cut-off events. For 405/452 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6149 event pairs, 226 based on Foata normal form. 23/965 useless extension candidates. Maximal degree in co-relation 2506. Up to 725 conditions per place. [2023-08-29 18:45:10,214 INFO L137 encePairwiseOnDemand]: 374/377 looper letters, 49 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2023-08-29 18:45:10,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 76 transitions, 390 flow [2023-08-29 18:45:10,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:45:10,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:45:10,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 589 transitions. [2023-08-29 18:45:10,216 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5207780725022104 [2023-08-29 18:45:10,216 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 589 transitions. [2023-08-29 18:45:10,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 589 transitions. [2023-08-29 18:45:10,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:10,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 589 transitions. [2023-08-29 18:45:10,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,220 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,221 INFO L175 Difference]: Start difference. First operand has 65 places, 68 transitions, 260 flow. Second operand 3 states and 589 transitions. [2023-08-29 18:45:10,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 76 transitions, 390 flow [2023-08-29 18:45:10,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 76 transitions, 376 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-29 18:45:10,224 INFO L231 Difference]: Finished difference. Result has 64 places, 67 transitions, 250 flow [2023-08-29 18:45:10,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=64, PETRI_TRANSITIONS=67} [2023-08-29 18:45:10,225 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-08-29 18:45:10,225 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 67 transitions, 250 flow [2023-08-29 18:45:10,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:10,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:45:10,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 18:45:10,226 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:10,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:10,227 INFO L85 PathProgramCache]: Analyzing trace with hash -258938913, now seen corresponding path program 1 times [2023-08-29 18:45:10,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:10,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691074181] [2023-08-29 18:45:10,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:10,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:10,361 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 18:45:10,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:10,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691074181] [2023-08-29 18:45:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691074181] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:10,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:10,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 18:45:10,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599783934] [2023-08-29 18:45:10,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:10,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 18:45:10,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:10,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 18:45:10,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-29 18:45:10,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 377 [2023-08-29 18:45:10,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 67 transitions, 250 flow. Second operand has 5 states, 5 states have (on average 181.4) internal successors, (907), 5 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:10,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 377 [2023-08-29 18:45:10,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:10,532 INFO L130 PetriNetUnfolder]: 126/461 cut-off events. [2023-08-29 18:45:10,532 INFO L131 PetriNetUnfolder]: For 128/133 co-relation queries the response was YES. [2023-08-29 18:45:10,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 461 events. 126/461 cut-off events. For 128/133 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2112 event pairs, 38 based on Foata normal form. 10/433 useless extension candidates. Maximal degree in co-relation 1101. Up to 200 conditions per place. [2023-08-29 18:45:10,534 INFO L137 encePairwiseOnDemand]: 368/377 looper letters, 49 selfloop transitions, 9 changer transitions 10/86 dead transitions. [2023-08-29 18:45:10,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 86 transitions, 432 flow [2023-08-29 18:45:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 18:45:10,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 18:45:10,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 777 transitions. [2023-08-29 18:45:10,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5152519893899205 [2023-08-29 18:45:10,537 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 777 transitions. [2023-08-29 18:45:10,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 777 transitions. [2023-08-29 18:45:10,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:10,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 777 transitions. [2023-08-29 18:45:10,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 194.25) internal successors, (777), 4 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,542 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,542 INFO L175 Difference]: Start difference. First operand has 64 places, 67 transitions, 250 flow. Second operand 4 states and 777 transitions. [2023-08-29 18:45:10,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 86 transitions, 432 flow [2023-08-29 18:45:10,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 86 transitions, 408 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-29 18:45:10,545 INFO L231 Difference]: Finished difference. Result has 62 places, 60 transitions, 214 flow [2023-08-29 18:45:10,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=62, PETRI_TRANSITIONS=60} [2023-08-29 18:45:10,545 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 5 predicate places. [2023-08-29 18:45:10,546 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 60 transitions, 214 flow [2023-08-29 18:45:10,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 181.4) internal successors, (907), 5 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:10,546 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] [2023-08-29 18:45:10,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 18:45:10,547 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:10,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:10,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1666647957, now seen corresponding path program 1 times [2023-08-29 18:45:10,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:10,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082643871] [2023-08-29 18:45:10,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:10,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:10,578 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 18:45:10,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:10,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082643871] [2023-08-29 18:45:10,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082643871] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:10,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:10,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:45:10,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262561231] [2023-08-29 18:45:10,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:10,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:45:10,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:10,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:45:10,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:45:10,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 377 [2023-08-29 18:45:10,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 60 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:10,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 377 [2023-08-29 18:45:10,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:10,682 INFO L130 PetriNetUnfolder]: 153/475 cut-off events. [2023-08-29 18:45:10,682 INFO L131 PetriNetUnfolder]: For 187/188 co-relation queries the response was YES. [2023-08-29 18:45:10,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1208 conditions, 475 events. 153/475 cut-off events. For 187/188 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2032 event pairs, 88 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 1193. Up to 300 conditions per place. [2023-08-29 18:45:10,684 INFO L137 encePairwiseOnDemand]: 371/377 looper letters, 42 selfloop transitions, 6 changer transitions 17/78 dead transitions. [2023-08-29 18:45:10,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 78 transitions, 402 flow [2023-08-29 18:45:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:45:10,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:45:10,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 598 transitions. [2023-08-29 18:45:10,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2023-08-29 18:45:10,687 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 598 transitions. [2023-08-29 18:45:10,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 598 transitions. [2023-08-29 18:45:10,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:10,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 598 transitions. [2023-08-29 18:45:10,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,691 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,691 INFO L175 Difference]: Start difference. First operand has 62 places, 60 transitions, 214 flow. Second operand 3 states and 598 transitions. [2023-08-29 18:45:10,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 78 transitions, 402 flow [2023-08-29 18:45:10,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 78 transitions, 401 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:45:10,693 INFO L231 Difference]: Finished difference. Result has 65 places, 53 transitions, 217 flow [2023-08-29 18:45:10,694 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=65, PETRI_TRANSITIONS=53} [2023-08-29 18:45:10,694 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2023-08-29 18:45:10,694 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 53 transitions, 217 flow [2023-08-29 18:45:10,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:10,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:10,695 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:45:10,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 18:45:10,695 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:10,696 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:10,696 INFO L85 PathProgramCache]: Analyzing trace with hash 42359985, now seen corresponding path program 1 times [2023-08-29 18:45:10,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:10,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237331795] [2023-08-29 18:45:10,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:10,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:10,900 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 18:45:10,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:10,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237331795] [2023-08-29 18:45:10,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237331795] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:10,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:10,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 18:45:10,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583207414] [2023-08-29 18:45:10,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:10,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 18:45:10,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:10,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 18:45:10,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-29 18:45:11,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 377 [2023-08-29 18:45:11,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 53 transitions, 217 flow. Second operand has 5 states, 5 states have (on average 186.2) internal successors, (931), 5 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:11,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 377 [2023-08-29 18:45:11,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:11,088 INFO L130 PetriNetUnfolder]: 67/275 cut-off events. [2023-08-29 18:45:11,088 INFO L131 PetriNetUnfolder]: For 267/268 co-relation queries the response was YES. [2023-08-29 18:45:11,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 763 conditions, 275 events. 67/275 cut-off events. For 267/268 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1019 event pairs, 29 based on Foata normal form. 4/274 useless extension candidates. Maximal degree in co-relation 747. Up to 113 conditions per place. [2023-08-29 18:45:11,090 INFO L137 encePairwiseOnDemand]: 372/377 looper letters, 35 selfloop transitions, 7 changer transitions 6/65 dead transitions. [2023-08-29 18:45:11,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 65 transitions, 367 flow [2023-08-29 18:45:11,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 18:45:11,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 18:45:11,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 769 transitions. [2023-08-29 18:45:11,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5099469496021221 [2023-08-29 18:45:11,092 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 769 transitions. [2023-08-29 18:45:11,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 769 transitions. [2023-08-29 18:45:11,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:11,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 769 transitions. [2023-08-29 18:45:11,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 192.25) internal successors, (769), 4 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 18:45:11,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,097 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,097 INFO L175 Difference]: Start difference. First operand has 65 places, 53 transitions, 217 flow. Second operand 4 states and 769 transitions. [2023-08-29 18:45:11,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 65 transitions, 367 flow [2023-08-29 18:45:11,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 65 transitions, 342 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-29 18:45:11,100 INFO L231 Difference]: Finished difference. Result has 64 places, 53 transitions, 211 flow [2023-08-29 18:45:11,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2023-08-29 18:45:11,100 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-08-29 18:45:11,100 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 211 flow [2023-08-29 18:45:11,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 186.2) internal successors, (931), 5 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:11,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:45:11,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 18:45:11,102 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:11,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:11,102 INFO L85 PathProgramCache]: Analyzing trace with hash -954223597, now seen corresponding path program 2 times [2023-08-29 18:45:11,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:11,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219974814] [2023-08-29 18:45:11,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:11,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:11,192 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 18:45:11,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:11,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219974814] [2023-08-29 18:45:11,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219974814] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:11,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:11,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:45:11,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532213047] [2023-08-29 18:45:11,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:11,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:45:11,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:11,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:45:11,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:45:11,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 377 [2023-08-29 18:45:11,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:11,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 377 [2023-08-29 18:45:11,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:11,304 INFO L130 PetriNetUnfolder]: 103/394 cut-off events. [2023-08-29 18:45:11,304 INFO L131 PetriNetUnfolder]: For 263/273 co-relation queries the response was YES. [2023-08-29 18:45:11,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 394 events. 103/394 cut-off events. For 263/273 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1801 event pairs, 26 based on Foata normal form. 11/399 useless extension candidates. Maximal degree in co-relation 1082. Up to 153 conditions per place. [2023-08-29 18:45:11,306 INFO L137 encePairwiseOnDemand]: 368/377 looper letters, 59 selfloop transitions, 10 changer transitions 1/86 dead transitions. [2023-08-29 18:45:11,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 86 transitions, 488 flow [2023-08-29 18:45:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:45:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:45:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 605 transitions. [2023-08-29 18:45:11,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5349248452696729 [2023-08-29 18:45:11,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 605 transitions. [2023-08-29 18:45:11,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 605 transitions. [2023-08-29 18:45:11,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:11,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 605 transitions. [2023-08-29 18:45:11,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,312 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 377.0) internal successors, (1508), 4 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,312 INFO L175 Difference]: Start difference. First operand has 64 places, 53 transitions, 211 flow. Second operand 3 states and 605 transitions. [2023-08-29 18:45:11,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 86 transitions, 488 flow [2023-08-29 18:45:11,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 86 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:45:11,314 INFO L231 Difference]: Finished difference. Result has 65 places, 61 transitions, 298 flow [2023-08-29 18:45:11,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=65, PETRI_TRANSITIONS=61} [2023-08-29 18:45:11,315 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2023-08-29 18:45:11,315 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 61 transitions, 298 flow [2023-08-29 18:45:11,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:45:11,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:45:11,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 18:45:11,316 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 18:45:11,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:45:11,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1974478611, now seen corresponding path program 3 times [2023-08-29 18:45:11,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:45:11,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120713372] [2023-08-29 18:45:11,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:45:11,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:45:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:45:11,484 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 18:45:11,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:45:11,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120713372] [2023-08-29 18:45:11,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120713372] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:45:11,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:45:11,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:45:11,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588457201] [2023-08-29 18:45:11,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:45:11,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:45:11,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:45:11,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:45:11,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:45:11,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 377 [2023-08-29 18:45:11,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:45:11,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 377 [2023-08-29 18:45:11,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:45:11,645 INFO L130 PetriNetUnfolder]: 29/174 cut-off events. [2023-08-29 18:45:11,645 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2023-08-29 18:45:11,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 174 events. 29/174 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 538 event pairs, 6 based on Foata normal form. 14/187 useless extension candidates. Maximal degree in co-relation 465. Up to 104 conditions per place. [2023-08-29 18:45:11,646 INFO L137 encePairwiseOnDemand]: 373/377 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2023-08-29 18:45:11,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 64 transitions, 380 flow [2023-08-29 18:45:11,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 18:45:11,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 18:45:11,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 763 transitions. [2023-08-29 18:45:11,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5059681697612732 [2023-08-29 18:45:11,650 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 763 transitions. [2023-08-29 18:45:11,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 763 transitions. [2023-08-29 18:45:11,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:45:11,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 763 transitions. [2023-08-29 18:45:11,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 190.75) internal successors, (763), 4 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,655 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 377.0) internal successors, (1885), 5 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,655 INFO L175 Difference]: Start difference. First operand has 65 places, 61 transitions, 298 flow. Second operand 4 states and 763 transitions. [2023-08-29 18:45:11,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 64 transitions, 380 flow [2023-08-29 18:45:11,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 64 transitions, 338 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-29 18:45:11,657 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2023-08-29 18:45:11,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2023-08-29 18:45:11,658 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 1 predicate places. [2023-08-29 18:45:11,658 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2023-08-29 18:45:11,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:45:11,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2023-08-29 18:45:11,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2023-08-29 18:45:11,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2023-08-29 18:45:11,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2023-08-29 18:45:11,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2023-08-29 18:45:11,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2023-08-29 18:45:11,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2023-08-29 18:45:11,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2023-08-29 18:45:11,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2023-08-29 18:45:11,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2023-08-29 18:45:11,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2023-08-29 18:45:11,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2023-08-29 18:45:11,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2023-08-29 18:45:11,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2023-08-29 18:45:11,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 18:45:11,670 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:45:11,675 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 18:45:11,675 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:45:11,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:45:11 BasicIcfg [2023-08-29 18:45:11,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:45:11,682 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:45:11,682 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:45:11,682 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:45:11,683 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:45:03" (3/4) ... [2023-08-29 18:45:11,687 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 18:45:11,692 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 18:45:11,697 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-29 18:45:11,698 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-29 18:45:11,698 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 18:45:11,698 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 18:45:11,738 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 18:45:11,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:45:11,739 INFO L158 Benchmark]: Toolchain (without parser) took 9745.79ms. Allocated memory was 73.4MB in the beginning and 161.5MB in the end (delta: 88.1MB). Free memory was 49.8MB in the beginning and 61.6MB in the end (delta: -11.8MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. [2023-08-29 18:45:11,739 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory was 38.4MB in the beginning and 38.4MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:45:11,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.47ms. Allocated memory is still 73.4MB. Free memory was 49.6MB in the beginning and 45.9MB in the end (delta: 3.7MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-08-29 18:45:11,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.75ms. Allocated memory is still 73.4MB. Free memory was 45.9MB in the beginning and 43.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:45:11,740 INFO L158 Benchmark]: Boogie Preprocessor took 44.94ms. Allocated memory is still 73.4MB. Free memory was 43.6MB in the beginning and 41.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:45:11,740 INFO L158 Benchmark]: RCFGBuilder took 525.21ms. Allocated memory is still 73.4MB. Free memory was 41.8MB in the beginning and 46.7MB in the end (delta: -4.9MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2023-08-29 18:45:11,741 INFO L158 Benchmark]: TraceAbstraction took 8615.76ms. Allocated memory was 73.4MB in the beginning and 161.5MB in the end (delta: 88.1MB). Free memory was 45.9MB in the beginning and 64.7MB in the end (delta: -18.8MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2023-08-29 18:45:11,741 INFO L158 Benchmark]: Witness Printer took 56.30ms. Allocated memory is still 161.5MB. Free memory was 64.7MB in the beginning and 61.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:45:11,744 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory was 38.4MB in the beginning and 38.4MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.47ms. Allocated memory is still 73.4MB. Free memory was 49.6MB in the beginning and 45.9MB in the end (delta: 3.7MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.75ms. Allocated memory is still 73.4MB. Free memory was 45.9MB in the beginning and 43.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.94ms. Allocated memory is still 73.4MB. Free memory was 43.6MB in the beginning and 41.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.21ms. Allocated memory is still 73.4MB. Free memory was 41.8MB in the beginning and 46.7MB in the end (delta: -4.9MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8615.76ms. Allocated memory was 73.4MB in the beginning and 161.5MB in the end (delta: 88.1MB). Free memory was 45.9MB in the beginning and 64.7MB in the end (delta: -18.8MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. * Witness Printer took 56.30ms. Allocated memory is still 161.5MB. Free memory was 64.7MB in the beginning and 61.6MB 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: 4.5s, 196 PlacesBefore, 57 PlacesAfterwards, 200 TransitionsBefore, 55 TransitionsAfterwards, 12180 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 102 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 26 ConcurrentYvCompositions, 6 ChoiceCompositions, 175 TotalNumberOfCompositions, 32354 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15586, independent: 14897, independent conditional: 0, independent unconditional: 14897, dependent: 689, dependent conditional: 0, dependent unconditional: 689, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6730, independent: 6629, independent conditional: 0, independent unconditional: 6629, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15586, independent: 8268, independent conditional: 0, independent unconditional: 8268, dependent: 588, dependent conditional: 0, dependent unconditional: 588, unknown: 6730, unknown conditional: 0, unknown unconditional: 6730] , Statistics on independence cache: Total cache size (in pairs): 445, Positive cache size: 396, Positive conditional cache size: 0, Positive unconditional cache size: 396, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 738]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: 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, 277 locations, 14 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: 8.5s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 839 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 493 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1683 IncrementalHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 83 mSDtfsCounter, 1683 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=13, InterpolantAutomatonStates: 45, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 1031 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 18:45:11,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE