./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:47:31,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:47:31,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:47:32,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:47:32,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:47:32,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:47:32,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:47:32,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:47:32,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:47:32,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:47:32,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:47:32,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:47:32,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:47:32,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:47:32,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:47:32,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:47:32,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:47:32,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:47:32,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:47:32,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:47:32,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:47:32,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:47:32,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:47:32,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:47:32,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:47:32,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:47:32,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:47:32,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:47:32,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:47:32,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:47:32,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:47:32,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:47:32,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:47:32,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:47:32,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:47:32,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:47:32,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:47:32,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:47:32,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:47:32,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:47:32,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:47:32,112 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-13 17:47:32,157 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:47:32,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:47:32,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:47:32,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:47:32,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:47:32,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:47:32,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:47:32,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:47:32,167 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:47:32,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:47:32,168 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:47:32,169 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:47:32,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:47:32,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:47:32,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:47:32,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:47:32,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:47:32,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:47:32,170 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-13 17:47:32,170 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:47:32,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:47:32,171 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:47:32,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:47:32,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:47:32,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:47:32,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:47:32,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:47:32,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:47:32,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:47:32,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:47:32,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:47:32,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:47:32,175 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:47:32,175 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:47:32,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:47:32,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:47:32,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2021-11-13 17:47:32,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:47:32,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:47:32,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:47:32,539 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:47:32,540 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:47:32,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2021-11-13 17:47:32,624 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/data/5350bcfff/19ec24a862014671ac1a43b3e55b180d/FLAG012a89283 [2021-11-13 17:47:33,226 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:47:33,227 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2021-11-13 17:47:33,243 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/data/5350bcfff/19ec24a862014671ac1a43b3e55b180d/FLAG012a89283 [2021-11-13 17:47:33,464 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/data/5350bcfff/19ec24a862014671ac1a43b3e55b180d [2021-11-13 17:47:33,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:47:33,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:47:33,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:47:33,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:47:33,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:47:33,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:47:33" (1/1) ... [2021-11-13 17:47:33,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b20aa6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:33, skipping insertion in model container [2021-11-13 17:47:33,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:47:33" (1/1) ... [2021-11-13 17:47:33,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:47:33,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:47:34,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:47:34,147 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:47:34,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:47:34,274 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:47:34,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:34 WrapperNode [2021-11-13 17:47:34,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:47:34,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:47:34,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:47:34,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:47:34,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:34" (1/1) ... [2021-11-13 17:47:34,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:34" (1/1) ... [2021-11-13 17:47:34,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:47:34,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:47:34,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:47:34,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:47:34,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:34" (1/1) ... [2021-11-13 17:47:34,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:34" (1/1) ... [2021-11-13 17:47:34,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:34" (1/1) ... [2021-11-13 17:47:34,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:34" (1/1) ... [2021-11-13 17:47:34,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:34" (1/1) ... [2021-11-13 17:47:34,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:34" (1/1) ... [2021-11-13 17:47:34,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:34" (1/1) ... [2021-11-13 17:47:34,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:47:34,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:47:34,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:47:34,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:47:34,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:34" (1/1) ... [2021-11-13 17:47:34,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:47:34,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:47:34,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:47:34,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbaf964-87fe-4642-8709-5eb0ad358968/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:47:34,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:47:34,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:47:34,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:47:34,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:47:34,511 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-13 17:47:34,511 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-13 17:47:34,511 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-13 17:47:34,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:47:34,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:47:34,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:47:34,514 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 17:47:34,974 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:47:34,974 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 17:47:34,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:47:34 BoogieIcfgContainer [2021-11-13 17:47:34,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:47:34,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:47:34,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:47:34,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:47:34,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:47:33" (1/3) ... [2021-11-13 17:47:34,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e9d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:47:34, skipping insertion in model container [2021-11-13 17:47:34,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:47:34" (2/3) ... [2021-11-13 17:47:34,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e9d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:47:34, skipping insertion in model container [2021-11-13 17:47:34,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:47:34" (3/3) ... [2021-11-13 17:47:34,996 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2021-11-13 17:47:35,002 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 17:47:35,002 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:47:35,002 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-13 17:47:35,002 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 17:47:35,072 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,072 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,072 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,072 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,073 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,073 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,073 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,073 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,073 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,074 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,074 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,074 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,074 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,074 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,075 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,076 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,077 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,078 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,079 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,080 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,080 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,093 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,094 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,094 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,095 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,095 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,095 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,096 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,096 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,096 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,096 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,097 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,097 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,098 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,098 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,098 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,098 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,100 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,100 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,101 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,101 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,101 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,104 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,104 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,104 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,105 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,105 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,106 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,106 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,106 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,106 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,107 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,107 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,107 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,108 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,108 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,108 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,108 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,111 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,111 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,111 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,112 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,112 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,112 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,112 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,113 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,114 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,118 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,118 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,119 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,119 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,121 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,121 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,122 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,122 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,122 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,129 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,130 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,130 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,130 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,130 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,130 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,131 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,131 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,131 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,133 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,133 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,133 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,134 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,134 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,134 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,134 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,135 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,135 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,135 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,135 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,135 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,136 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,136 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,136 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,136 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,137 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,137 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,137 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,137 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,137 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,138 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,138 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,138 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,138 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,139 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,139 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,139 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,139 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,139 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,140 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,140 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,140 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,150 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 17:47:35,161 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-13 17:47:35,226 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:47:35,237 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:47:35,237 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-13 17:47:35,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 102 transitions, 212 flow [2021-11-13 17:47:35,302 INFO L129 PetriNetUnfolder]: 0/101 cut-off events. [2021-11-13 17:47:35,303 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-13 17:47:35,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 0/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-13 17:47:35,305 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 102 transitions, 212 flow [2021-11-13 17:47:35,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 93 transitions, 189 flow [2021-11-13 17:47:35,326 INFO L129 PetriNetUnfolder]: 0/55 cut-off events. [2021-11-13 17:47:35,326 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 17:47:35,327 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:47:35,327 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:35,328 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:47:35,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:35,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1992182324, now seen corresponding path program 1 times [2021-11-13 17:47:35,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:35,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946197926] [2021-11-13 17:47:35,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:35,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:35,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:35,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:35,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946197926] [2021-11-13 17:47:35,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946197926] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:35,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:35,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:47:35,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881493356] [2021-11-13 17:47:35,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:35,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:47:35,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:35,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:47:35,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:47:35,864 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 102 [2021-11-13 17:47:35,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 93 transitions, 189 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:35,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:47:35,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 102 [2021-11-13 17:47:35,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:47:36,547 INFO L129 PetriNetUnfolder]: 347/953 cut-off events. [2021-11-13 17:47:36,548 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-13 17:47:36,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1693 conditions, 953 events. 347/953 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5257 event pairs, 150 based on Foata normal form. 0/853 useless extension candidates. Maximal degree in co-relation 1658. Up to 526 conditions per place. [2021-11-13 17:47:36,582 INFO L132 encePairwiseOnDemand]: 91/102 looper letters, 91 selfloop transitions, 22 changer transitions 0/171 dead transitions. [2021-11-13 17:47:36,582 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 171 transitions, 571 flow [2021-11-13 17:47:36,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:47:36,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-13 17:47:36,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 510 transitions. [2021-11-13 17:47:36,610 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-11-13 17:47:36,611 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 510 transitions. [2021-11-13 17:47:36,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 510 transitions. [2021-11-13 17:47:36,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:47:36,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 510 transitions. [2021-11-13 17:47:36,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:36,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:36,637 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:36,639 INFO L186 Difference]: Start difference. First operand has 97 places, 93 transitions, 189 flow. Second operand 6 states and 510 transitions. [2021-11-13 17:47:36,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 171 transitions, 571 flow [2021-11-13 17:47:36,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 171 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-13 17:47:36,656 INFO L242 Difference]: Finished difference. Result has 106 places, 114 transitions, 338 flow [2021-11-13 17:47:36,659 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=106, PETRI_TRANSITIONS=114} [2021-11-13 17:47:36,667 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 9 predicate places. [2021-11-13 17:47:36,671 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 114 transitions, 338 flow [2021-11-13 17:47:36,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:36,672 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:47:36,673 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:36,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:47:36,674 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:47:36,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:36,675 INFO L85 PathProgramCache]: Analyzing trace with hash -457706559, now seen corresponding path program 1 times [2021-11-13 17:47:36,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:36,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173870459] [2021-11-13 17:47:36,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:36,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:36,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:36,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173870459] [2021-11-13 17:47:36,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173870459] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:36,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:36,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:47:36,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983325310] [2021-11-13 17:47:36,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:36,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:47:36,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:36,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:47:36,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:47:36,976 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 102 [2021-11-13 17:47:36,977 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 114 transitions, 338 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:36,977 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:47:36,977 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 102 [2021-11-13 17:47:36,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:47:37,420 INFO L129 PetriNetUnfolder]: 332/948 cut-off events. [2021-11-13 17:47:37,420 INFO L130 PetriNetUnfolder]: For 392/398 co-relation queries the response was YES. [2021-11-13 17:47:37,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2085 conditions, 948 events. 332/948 cut-off events. For 392/398 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5363 event pairs, 155 based on Foata normal form. 0/871 useless extension candidates. Maximal degree in co-relation 2046. Up to 591 conditions per place. [2021-11-13 17:47:37,430 INFO L132 encePairwiseOnDemand]: 91/102 looper letters, 80 selfloop transitions, 26 changer transitions 0/164 dead transitions. [2021-11-13 17:47:37,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 164 transitions, 740 flow [2021-11-13 17:47:37,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:47:37,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-13 17:47:37,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 482 transitions. [2021-11-13 17:47:37,433 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7875816993464052 [2021-11-13 17:47:37,433 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 482 transitions. [2021-11-13 17:47:37,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 482 transitions. [2021-11-13 17:47:37,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:47:37,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 482 transitions. [2021-11-13 17:47:37,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.33333333333333) internal successors, (482), 6 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:37,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:37,439 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:37,439 INFO L186 Difference]: Start difference. First operand has 106 places, 114 transitions, 338 flow. Second operand 6 states and 482 transitions. [2021-11-13 17:47:37,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 164 transitions, 740 flow [2021-11-13 17:47:37,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 164 transitions, 740 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-13 17:47:37,450 INFO L242 Difference]: Finished difference. Result has 116 places, 135 transitions, 522 flow [2021-11-13 17:47:37,450 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=116, PETRI_TRANSITIONS=135} [2021-11-13 17:47:37,451 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 19 predicate places. [2021-11-13 17:47:37,451 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 135 transitions, 522 flow [2021-11-13 17:47:37,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:37,452 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:47:37,452 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:37,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:47:37,453 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:47:37,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:37,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1374572531, now seen corresponding path program 1 times [2021-11-13 17:47:37,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:37,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064217153] [2021-11-13 17:47:37,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:37,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:37,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:37,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:37,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064217153] [2021-11-13 17:47:37,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064217153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:37,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:37,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:47:37,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539187054] [2021-11-13 17:47:37,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:37,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:47:37,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:37,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:47:37,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:47:37,620 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 102 [2021-11-13 17:47:37,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 135 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:37,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:47:37,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 102 [2021-11-13 17:47:37,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:47:38,240 INFO L129 PetriNetUnfolder]: 502/1322 cut-off events. [2021-11-13 17:47:38,240 INFO L130 PetriNetUnfolder]: For 786/798 co-relation queries the response was YES. [2021-11-13 17:47:38,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3291 conditions, 1322 events. 502/1322 cut-off events. For 786/798 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7794 event pairs, 196 based on Foata normal form. 4/1231 useless extension candidates. Maximal degree in co-relation 3247. Up to 895 conditions per place. [2021-11-13 17:47:38,257 INFO L132 encePairwiseOnDemand]: 83/102 looper letters, 94 selfloop transitions, 69 changer transitions 4/223 dead transitions. [2021-11-13 17:47:38,257 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 223 transitions, 1192 flow [2021-11-13 17:47:38,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:47:38,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-13 17:47:38,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2021-11-13 17:47:38,260 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.815359477124183 [2021-11-13 17:47:38,261 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 499 transitions. [2021-11-13 17:47:38,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 499 transitions. [2021-11-13 17:47:38,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:47:38,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 499 transitions. [2021-11-13 17:47:38,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:38,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:38,267 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:38,267 INFO L186 Difference]: Start difference. First operand has 116 places, 135 transitions, 522 flow. Second operand 6 states and 499 transitions. [2021-11-13 17:47:38,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 223 transitions, 1192 flow [2021-11-13 17:47:38,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 223 transitions, 1192 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-13 17:47:38,289 INFO L242 Difference]: Finished difference. Result has 126 places, 198 transitions, 1108 flow [2021-11-13 17:47:38,290 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1108, PETRI_PLACES=126, PETRI_TRANSITIONS=198} [2021-11-13 17:47:38,293 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 29 predicate places. [2021-11-13 17:47:38,293 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 198 transitions, 1108 flow [2021-11-13 17:47:38,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:38,294 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:47:38,294 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:38,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:47:38,295 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:47:38,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:38,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1603585861, now seen corresponding path program 1 times [2021-11-13 17:47:38,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:38,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958039169] [2021-11-13 17:47:38,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:38,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:38,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:38,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:38,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958039169] [2021-11-13 17:47:38,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958039169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:38,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:38,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:47:38,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239877586] [2021-11-13 17:47:38,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:38,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:47:38,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:38,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:47:38,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:47:38,514 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 102 [2021-11-13 17:47:38,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 198 transitions, 1108 flow. Second operand has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:38,515 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:47:38,515 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 102 [2021-11-13 17:47:38,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:47:38,998 INFO L129 PetriNetUnfolder]: 545/1415 cut-off events. [2021-11-13 17:47:38,999 INFO L130 PetriNetUnfolder]: For 1820/1834 co-relation queries the response was YES. [2021-11-13 17:47:39,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4537 conditions, 1415 events. 545/1415 cut-off events. For 1820/1834 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 8584 event pairs, 155 based on Foata normal form. 0/1362 useless extension candidates. Maximal degree in co-relation 4488. Up to 995 conditions per place. [2021-11-13 17:47:39,020 INFO L132 encePairwiseOnDemand]: 87/102 looper letters, 145 selfloop transitions, 67 changer transitions 0/269 dead transitions. [2021-11-13 17:47:39,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 269 transitions, 1950 flow [2021-11-13 17:47:39,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:47:39,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-13 17:47:39,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 475 transitions. [2021-11-13 17:47:39,024 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7761437908496732 [2021-11-13 17:47:39,024 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 475 transitions. [2021-11-13 17:47:39,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 475 transitions. [2021-11-13 17:47:39,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:47:39,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 475 transitions. [2021-11-13 17:47:39,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:39,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:39,030 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:39,030 INFO L186 Difference]: Start difference. First operand has 126 places, 198 transitions, 1108 flow. Second operand 6 states and 475 transitions. [2021-11-13 17:47:39,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 269 transitions, 1950 flow [2021-11-13 17:47:39,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 269 transitions, 1886 flow, removed 32 selfloop flow, removed 0 redundant places. [2021-11-13 17:47:39,060 INFO L242 Difference]: Finished difference. Result has 136 places, 251 transitions, 1696 flow [2021-11-13 17:47:39,061 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1696, PETRI_PLACES=136, PETRI_TRANSITIONS=251} [2021-11-13 17:47:39,063 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 39 predicate places. [2021-11-13 17:47:39,063 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 251 transitions, 1696 flow [2021-11-13 17:47:39,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:39,064 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:47:39,064 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:39,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:47:39,065 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:47:39,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:39,066 INFO L85 PathProgramCache]: Analyzing trace with hash -162900079, now seen corresponding path program 1 times [2021-11-13 17:47:39,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:39,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245330728] [2021-11-13 17:47:39,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:39,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:39,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:39,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:39,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245330728] [2021-11-13 17:47:39,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245330728] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:39,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:39,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:47:39,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909613939] [2021-11-13 17:47:39,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:39,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:47:39,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:39,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:47:39,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:47:39,491 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:47:39,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 251 transitions, 1696 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:39,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:47:39,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:47:39,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:47:41,014 INFO L129 PetriNetUnfolder]: 1216/3142 cut-off events. [2021-11-13 17:47:41,014 INFO L130 PetriNetUnfolder]: For 6125/6131 co-relation queries the response was YES. [2021-11-13 17:47:41,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11146 conditions, 3142 events. 1216/3142 cut-off events. For 6125/6131 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 22502 event pairs, 146 based on Foata normal form. 11/3085 useless extension candidates. Maximal degree in co-relation 11084. Up to 1123 conditions per place. [2021-11-13 17:47:41,060 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 459 selfloop transitions, 70 changer transitions 2/577 dead transitions. [2021-11-13 17:47:41,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 577 transitions, 5158 flow [2021-11-13 17:47:41,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:47:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-13 17:47:41,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 974 transitions. [2021-11-13 17:47:41,065 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6366013071895424 [2021-11-13 17:47:41,065 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 974 transitions. [2021-11-13 17:47:41,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 974 transitions. [2021-11-13 17:47:41,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:47:41,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 974 transitions. [2021-11-13 17:47:41,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 64.93333333333334) internal successors, (974), 15 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:41,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:41,074 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:41,075 INFO L186 Difference]: Start difference. First operand has 136 places, 251 transitions, 1696 flow. Second operand 15 states and 974 transitions. [2021-11-13 17:47:41,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 577 transitions, 5158 flow [2021-11-13 17:47:41,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 577 transitions, 5010 flow, removed 74 selfloop flow, removed 0 redundant places. [2021-11-13 17:47:41,145 INFO L242 Difference]: Finished difference. Result has 158 places, 308 transitions, 2476 flow [2021-11-13 17:47:41,146 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=1622, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2476, PETRI_PLACES=158, PETRI_TRANSITIONS=308} [2021-11-13 17:47:41,149 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 61 predicate places. [2021-11-13 17:47:41,149 INFO L470 AbstractCegarLoop]: Abstraction has has 158 places, 308 transitions, 2476 flow [2021-11-13 17:47:41,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:41,152 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:47:41,152 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:41,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:47:41,152 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:47:41,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:41,153 INFO L85 PathProgramCache]: Analyzing trace with hash -543993391, now seen corresponding path program 2 times [2021-11-13 17:47:41,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:41,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114781799] [2021-11-13 17:47:41,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:41,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:41,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:41,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:41,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114781799] [2021-11-13 17:47:41,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114781799] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:41,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:41,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:47:41,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936657878] [2021-11-13 17:47:41,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:41,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:47:41,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:41,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:47:41,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:47:41,684 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:47:41,685 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 308 transitions, 2476 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:41,685 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:47:41,685 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:47:41,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:47:43,643 INFO L129 PetriNetUnfolder]: 1266/3252 cut-off events. [2021-11-13 17:47:43,643 INFO L130 PetriNetUnfolder]: For 8603/8621 co-relation queries the response was YES. [2021-11-13 17:47:43,668 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12343 conditions, 3252 events. 1266/3252 cut-off events. For 8603/8621 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 23543 event pairs, 187 based on Foata normal form. 5/3185 useless extension candidates. Maximal degree in co-relation 12270. Up to 1998 conditions per place. [2021-11-13 17:47:43,700 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 286 selfloop transitions, 95 changer transitions 0/427 dead transitions. [2021-11-13 17:47:43,701 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 427 transitions, 4124 flow [2021-11-13 17:47:43,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 17:47:43,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-13 17:47:43,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 782 transitions. [2021-11-13 17:47:43,705 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2021-11-13 17:47:43,705 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 782 transitions. [2021-11-13 17:47:43,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 782 transitions. [2021-11-13 17:47:43,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:47:43,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 782 transitions. [2021-11-13 17:47:43,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 65.16666666666667) internal successors, (782), 12 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:43,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 102.0) internal successors, (1326), 13 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:43,715 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 102.0) internal successors, (1326), 13 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:43,716 INFO L186 Difference]: Start difference. First operand has 158 places, 308 transitions, 2476 flow. Second operand 12 states and 782 transitions. [2021-11-13 17:47:43,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 427 transitions, 4124 flow [2021-11-13 17:47:43,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 427 transitions, 4109 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-11-13 17:47:43,825 INFO L242 Difference]: Finished difference. Result has 171 places, 332 transitions, 3167 flow [2021-11-13 17:47:43,826 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=2465, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3167, PETRI_PLACES=171, PETRI_TRANSITIONS=332} [2021-11-13 17:47:43,830 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 74 predicate places. [2021-11-13 17:47:43,830 INFO L470 AbstractCegarLoop]: Abstraction has has 171 places, 332 transitions, 3167 flow [2021-11-13 17:47:43,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:43,832 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:47:43,832 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:43,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:47:43,832 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:47:43,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:43,834 INFO L85 PathProgramCache]: Analyzing trace with hash -493656573, now seen corresponding path program 3 times [2021-11-13 17:47:43,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:43,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270814206] [2021-11-13 17:47:43,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:43,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:44,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:44,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270814206] [2021-11-13 17:47:44,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270814206] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:44,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:44,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:47:44,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169420457] [2021-11-13 17:47:44,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:44,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:47:44,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:44,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:47:44,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:47:44,151 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:47:44,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 332 transitions, 3167 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:44,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:47:44,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:47:44,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:47:46,785 INFO L129 PetriNetUnfolder]: 2419/6230 cut-off events. [2021-11-13 17:47:46,785 INFO L130 PetriNetUnfolder]: For 20803/20815 co-relation queries the response was YES. [2021-11-13 17:47:46,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24484 conditions, 6230 events. 2419/6230 cut-off events. For 20803/20815 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 52404 event pairs, 296 based on Foata normal form. 11/6105 useless extension candidates. Maximal degree in co-relation 24406. Up to 1324 conditions per place. [2021-11-13 17:47:46,908 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 825 selfloop transitions, 125 changer transitions 1/997 dead transitions. [2021-11-13 17:47:46,908 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 997 transitions, 10724 flow [2021-11-13 17:47:46,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 17:47:46,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-13 17:47:46,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1095 transitions. [2021-11-13 17:47:46,914 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6709558823529411 [2021-11-13 17:47:46,914 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1095 transitions. [2021-11-13 17:47:46,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1095 transitions. [2021-11-13 17:47:46,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:47:46,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1095 transitions. [2021-11-13 17:47:46,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 68.4375) internal successors, (1095), 16 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:46,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 102.0) internal successors, (1734), 17 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:46,925 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 102.0) internal successors, (1734), 17 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:46,925 INFO L186 Difference]: Start difference. First operand has 171 places, 332 transitions, 3167 flow. Second operand 16 states and 1095 transitions. [2021-11-13 17:47:46,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 997 transitions, 10724 flow [2021-11-13 17:47:47,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 997 transitions, 10579 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-11-13 17:47:47,102 INFO L242 Difference]: Finished difference. Result has 188 places, 409 transitions, 4777 flow [2021-11-13 17:47:47,103 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=3105, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4777, PETRI_PLACES=188, PETRI_TRANSITIONS=409} [2021-11-13 17:47:47,104 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 91 predicate places. [2021-11-13 17:47:47,104 INFO L470 AbstractCegarLoop]: Abstraction has has 188 places, 409 transitions, 4777 flow [2021-11-13 17:47:47,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:47,105 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:47:47,106 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:47,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 17:47:47,106 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:47:47,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:47,107 INFO L85 PathProgramCache]: Analyzing trace with hash 403233053, now seen corresponding path program 4 times [2021-11-13 17:47:47,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:47,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380811866] [2021-11-13 17:47:47,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:47,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:47,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:47,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:47,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380811866] [2021-11-13 17:47:47,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380811866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:47,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:47,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:47:47,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395280875] [2021-11-13 17:47:47,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:47,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:47:47,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:47,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:47:47,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:47:47,586 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:47:47,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 409 transitions, 4777 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:47,587 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:47:47,587 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:47:47,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:47:50,379 INFO L129 PetriNetUnfolder]: 2513/6411 cut-off events. [2021-11-13 17:47:50,379 INFO L130 PetriNetUnfolder]: For 28528/28564 co-relation queries the response was YES. [2021-11-13 17:47:50,435 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26616 conditions, 6411 events. 2513/6411 cut-off events. For 28528/28564 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 54355 event pairs, 426 based on Foata normal form. 13/6281 useless extension candidates. Maximal degree in co-relation 26529. Up to 3967 conditions per place. [2021-11-13 17:47:50,476 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 342 selfloop transitions, 173 changer transitions 0/561 dead transitions. [2021-11-13 17:47:50,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 561 transitions, 7206 flow [2021-11-13 17:47:50,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:47:50,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-13 17:47:50,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 901 transitions. [2021-11-13 17:47:50,481 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6309523809523809 [2021-11-13 17:47:50,481 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 901 transitions. [2021-11-13 17:47:50,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 901 transitions. [2021-11-13 17:47:50,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:47:50,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 901 transitions. [2021-11-13 17:47:50,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 64.35714285714286) internal successors, (901), 14 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:50,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 102.0) internal successors, (1530), 15 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:50,490 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 102.0) internal successors, (1530), 15 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:50,491 INFO L186 Difference]: Start difference. First operand has 188 places, 409 transitions, 4777 flow. Second operand 14 states and 901 transitions. [2021-11-13 17:47:50,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 561 transitions, 7206 flow [2021-11-13 17:47:50,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 561 transitions, 7086 flow, removed 52 selfloop flow, removed 4 redundant places. [2021-11-13 17:47:50,739 INFO L242 Difference]: Finished difference. Result has 204 places, 445 transitions, 6009 flow [2021-11-13 17:47:50,740 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=4672, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6009, PETRI_PLACES=204, PETRI_TRANSITIONS=445} [2021-11-13 17:47:50,741 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 107 predicate places. [2021-11-13 17:47:50,741 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 445 transitions, 6009 flow [2021-11-13 17:47:50,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:50,742 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:47:50,742 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:50,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 17:47:50,742 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:47:50,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:50,743 INFO L85 PathProgramCache]: Analyzing trace with hash 8338045, now seen corresponding path program 5 times [2021-11-13 17:47:50,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:50,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928900657] [2021-11-13 17:47:50,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:50,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:50,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:50,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928900657] [2021-11-13 17:47:50,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928900657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:50,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:50,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:47:50,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129456806] [2021-11-13 17:47:50,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:50,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:47:50,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:50,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:47:50,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:47:50,965 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:47:50,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 445 transitions, 6009 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:50,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:47:50,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:47:50,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:47:53,387 INFO L129 PetriNetUnfolder]: 2579/6604 cut-off events. [2021-11-13 17:47:53,387 INFO L130 PetriNetUnfolder]: For 37626/37650 co-relation queries the response was YES. [2021-11-13 17:47:53,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28628 conditions, 6604 events. 2579/6604 cut-off events. For 37626/37650 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 56135 event pairs, 387 based on Foata normal form. 14/6480 useless extension candidates. Maximal degree in co-relation 28534. Up to 2125 conditions per place. [2021-11-13 17:47:53,498 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 721 selfloop transitions, 148 changer transitions 0/915 dead transitions. [2021-11-13 17:47:53,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 915 transitions, 11740 flow [2021-11-13 17:47:53,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:47:53,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-13 17:47:53,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1012 transitions. [2021-11-13 17:47:53,505 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.661437908496732 [2021-11-13 17:47:53,505 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1012 transitions. [2021-11-13 17:47:53,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1012 transitions. [2021-11-13 17:47:53,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:47:53,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1012 transitions. [2021-11-13 17:47:53,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 67.46666666666667) internal successors, (1012), 15 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:53,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:53,518 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:53,518 INFO L186 Difference]: Start difference. First operand has 204 places, 445 transitions, 6009 flow. Second operand 15 states and 1012 transitions. [2021-11-13 17:47:53,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 915 transitions, 11740 flow [2021-11-13 17:47:53,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 915 transitions, 11560 flow, removed 42 selfloop flow, removed 6 redundant places. [2021-11-13 17:47:53,886 INFO L242 Difference]: Finished difference. Result has 219 places, 480 transitions, 6873 flow [2021-11-13 17:47:53,887 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=5883, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6873, PETRI_PLACES=219, PETRI_TRANSITIONS=480} [2021-11-13 17:47:53,888 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 122 predicate places. [2021-11-13 17:47:53,889 INFO L470 AbstractCegarLoop]: Abstraction has has 219 places, 480 transitions, 6873 flow [2021-11-13 17:47:53,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:53,893 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:47:53,894 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:53,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 17:47:53,894 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:47:53,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:53,896 INFO L85 PathProgramCache]: Analyzing trace with hash 639503597, now seen corresponding path program 1 times [2021-11-13 17:47:53,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:53,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157540503] [2021-11-13 17:47:53,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:53,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:54,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:54,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:54,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157540503] [2021-11-13 17:47:54,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157540503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:54,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:54,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:47:54,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103536346] [2021-11-13 17:47:54,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:54,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:47:54,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:54,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:47:54,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:47:54,306 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 102 [2021-11-13 17:47:54,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 480 transitions, 6873 flow. Second operand has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:54,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:47:54,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 102 [2021-11-13 17:47:54,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:47:57,022 INFO L129 PetriNetUnfolder]: 2879/7143 cut-off events. [2021-11-13 17:47:57,023 INFO L130 PetriNetUnfolder]: For 45165/45179 co-relation queries the response was YES. [2021-11-13 17:47:57,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31591 conditions, 7143 events. 2879/7143 cut-off events. For 45165/45179 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 60485 event pairs, 584 based on Foata normal form. 13/7002 useless extension candidates. Maximal degree in co-relation 31490. Up to 2261 conditions per place. [2021-11-13 17:47:57,126 INFO L132 encePairwiseOnDemand]: 77/102 looper letters, 708 selfloop transitions, 193 changer transitions 7/951 dead transitions. [2021-11-13 17:47:57,126 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 951 transitions, 12929 flow [2021-11-13 17:47:57,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:47:57,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-13 17:47:57,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 990 transitions. [2021-11-13 17:47:57,134 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6932773109243697 [2021-11-13 17:47:57,134 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 990 transitions. [2021-11-13 17:47:57,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 990 transitions. [2021-11-13 17:47:57,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:47:57,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 990 transitions. [2021-11-13 17:47:57,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 70.71428571428571) internal successors, (990), 14 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:57,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 102.0) internal successors, (1530), 15 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:57,145 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 102.0) internal successors, (1530), 15 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:57,145 INFO L186 Difference]: Start difference. First operand has 219 places, 480 transitions, 6873 flow. Second operand 14 states and 990 transitions. [2021-11-13 17:47:57,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 951 transitions, 12929 flow [2021-11-13 17:47:57,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 951 transitions, 12634 flow, removed 78 selfloop flow, removed 6 redundant places. [2021-11-13 17:47:57,541 INFO L242 Difference]: Finished difference. Result has 236 places, 605 transitions, 8898 flow [2021-11-13 17:47:57,542 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=6597, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8898, PETRI_PLACES=236, PETRI_TRANSITIONS=605} [2021-11-13 17:47:57,542 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 139 predicate places. [2021-11-13 17:47:57,543 INFO L470 AbstractCegarLoop]: Abstraction has has 236 places, 605 transitions, 8898 flow [2021-11-13 17:47:57,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:57,543 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:47:57,544 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:57,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 17:47:57,544 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:47:57,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:57,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1024213444, now seen corresponding path program 1 times [2021-11-13 17:47:57,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:57,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062181831] [2021-11-13 17:47:57,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:57,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:57,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:47:57,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:57,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062181831] [2021-11-13 17:47:57,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062181831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:57,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:57,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:47:57,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026604166] [2021-11-13 17:47:57,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:57,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:47:57,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:57,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:47:57,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:47:57,845 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:47:57,846 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 605 transitions, 8898 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:47:57,846 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:47:57,846 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:47:57,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:48:01,081 INFO L129 PetriNetUnfolder]: 2704/6971 cut-off events. [2021-11-13 17:48:01,082 INFO L130 PetriNetUnfolder]: For 50269/50311 co-relation queries the response was YES. [2021-11-13 17:48:01,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32789 conditions, 6971 events. 2704/6971 cut-off events. For 50269/50311 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 60290 event pairs, 345 based on Foata normal form. 26/6860 useless extension candidates. Maximal degree in co-relation 32678. Up to 1473 conditions per place. [2021-11-13 17:48:01,177 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 1016 selfloop transitions, 123 changer transitions 3/1192 dead transitions. [2021-11-13 17:48:01,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 1192 transitions, 16355 flow [2021-11-13 17:48:01,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:48:01,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-13 17:48:01,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1092 transitions. [2021-11-13 17:48:01,182 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7137254901960784 [2021-11-13 17:48:01,182 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1092 transitions. [2021-11-13 17:48:01,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1092 transitions. [2021-11-13 17:48:01,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:48:01,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1092 transitions. [2021-11-13 17:48:01,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 72.8) internal successors, (1092), 15 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:01,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:01,192 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:01,192 INFO L186 Difference]: Start difference. First operand has 236 places, 605 transitions, 8898 flow. Second operand 15 states and 1092 transitions. [2021-11-13 17:48:01,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 1192 transitions, 16355 flow [2021-11-13 17:48:01,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 1192 transitions, 16273 flow, removed 37 selfloop flow, removed 3 redundant places. [2021-11-13 17:48:01,661 INFO L242 Difference]: Finished difference. Result has 255 places, 687 transitions, 10341 flow [2021-11-13 17:48:01,662 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=8816, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=605, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=10341, PETRI_PLACES=255, PETRI_TRANSITIONS=687} [2021-11-13 17:48:01,663 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 158 predicate places. [2021-11-13 17:48:01,663 INFO L470 AbstractCegarLoop]: Abstraction has has 255 places, 687 transitions, 10341 flow [2021-11-13 17:48:01,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:01,664 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:48:01,664 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:01,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 17:48:01,665 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:48:01,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:01,665 INFO L85 PathProgramCache]: Analyzing trace with hash 503059463, now seen corresponding path program 2 times [2021-11-13 17:48:01,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:01,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527365284] [2021-11-13 17:48:01,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:01,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:01,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:01,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527365284] [2021-11-13 17:48:01,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527365284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:01,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:01,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:48:01,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108367588] [2021-11-13 17:48:01,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:01,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:48:01,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:01,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:48:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:48:01,874 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 102 [2021-11-13 17:48:01,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 687 transitions, 10341 flow. Second operand has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:01,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:48:01,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 102 [2021-11-13 17:48:01,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:48:05,355 INFO L129 PetriNetUnfolder]: 3054/7551 cut-off events. [2021-11-13 17:48:05,356 INFO L130 PetriNetUnfolder]: For 58048/58110 co-relation queries the response was YES. [2021-11-13 17:48:05,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37392 conditions, 7551 events. 3054/7551 cut-off events. For 58048/58110 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 64575 event pairs, 635 based on Foata normal form. 53/7444 useless extension candidates. Maximal degree in co-relation 37273. Up to 2492 conditions per place. [2021-11-13 17:48:05,666 INFO L132 encePairwiseOnDemand]: 77/102 looper letters, 793 selfloop transitions, 225 changer transitions 7/1068 dead transitions. [2021-11-13 17:48:05,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 1068 transitions, 15969 flow [2021-11-13 17:48:05,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:48:05,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-13 17:48:05,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2021-11-13 17:48:05,670 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2021-11-13 17:48:05,670 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1054 transitions. [2021-11-13 17:48:05,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1054 transitions. [2021-11-13 17:48:05,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:48:05,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1054 transitions. [2021-11-13 17:48:05,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 70.26666666666667) internal successors, (1054), 15 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:05,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:05,679 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:05,679 INFO L186 Difference]: Start difference. First operand has 255 places, 687 transitions, 10341 flow. Second operand 15 states and 1054 transitions. [2021-11-13 17:48:05,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 1068 transitions, 15969 flow [2021-11-13 17:48:06,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 1068 transitions, 15915 flow, removed 23 selfloop flow, removed 3 redundant places. [2021-11-13 17:48:06,266 INFO L242 Difference]: Finished difference. Result has 271 places, 721 transitions, 11525 flow [2021-11-13 17:48:06,268 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=10287, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11525, PETRI_PLACES=271, PETRI_TRANSITIONS=721} [2021-11-13 17:48:06,269 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 174 predicate places. [2021-11-13 17:48:06,269 INFO L470 AbstractCegarLoop]: Abstraction has has 271 places, 721 transitions, 11525 flow [2021-11-13 17:48:06,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:06,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:48:06,270 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:06,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 17:48:06,270 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:48:06,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:06,271 INFO L85 PathProgramCache]: Analyzing trace with hash 395116704, now seen corresponding path program 2 times [2021-11-13 17:48:06,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:06,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532524107] [2021-11-13 17:48:06,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:06,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:06,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:06,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:06,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532524107] [2021-11-13 17:48:06,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532524107] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:06,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:06,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:48:06,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115846661] [2021-11-13 17:48:06,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:06,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:48:06,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:06,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:48:06,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:48:06,615 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:48:06,616 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 721 transitions, 11525 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:06,616 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:48:06,616 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:48:06,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:48:10,206 INFO L129 PetriNetUnfolder]: 2921/7513 cut-off events. [2021-11-13 17:48:10,206 INFO L130 PetriNetUnfolder]: For 68151/68214 co-relation queries the response was YES. [2021-11-13 17:48:10,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39166 conditions, 7513 events. 2921/7513 cut-off events. For 68151/68214 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 66208 event pairs, 344 based on Foata normal form. 29/7394 useless extension candidates. Maximal degree in co-relation 39042. Up to 2022 conditions per place. [2021-11-13 17:48:10,339 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 986 selfloop transitions, 163 changer transitions 2/1203 dead transitions. [2021-11-13 17:48:10,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 1203 transitions, 18506 flow [2021-11-13 17:48:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:48:10,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-13 17:48:10,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1090 transitions. [2021-11-13 17:48:10,343 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7124183006535948 [2021-11-13 17:48:10,343 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1090 transitions. [2021-11-13 17:48:10,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1090 transitions. [2021-11-13 17:48:10,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:48:10,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1090 transitions. [2021-11-13 17:48:10,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 72.66666666666667) internal successors, (1090), 15 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:10,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:10,352 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:10,352 INFO L186 Difference]: Start difference. First operand has 271 places, 721 transitions, 11525 flow. Second operand 15 states and 1090 transitions. [2021-11-13 17:48:10,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 1203 transitions, 18506 flow [2021-11-13 17:48:10,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 1203 transitions, 18400 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-11-13 17:48:10,970 INFO L242 Difference]: Finished difference. Result has 286 places, 785 transitions, 13064 flow [2021-11-13 17:48:10,971 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=11419, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=721, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13064, PETRI_PLACES=286, PETRI_TRANSITIONS=785} [2021-11-13 17:48:10,971 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 189 predicate places. [2021-11-13 17:48:10,972 INFO L470 AbstractCegarLoop]: Abstraction has has 286 places, 785 transitions, 13064 flow [2021-11-13 17:48:10,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:10,972 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:48:10,972 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:10,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 17:48:10,973 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:48:10,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:10,973 INFO L85 PathProgramCache]: Analyzing trace with hash 313399107, now seen corresponding path program 6 times [2021-11-13 17:48:10,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:10,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068377220] [2021-11-13 17:48:10,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:10,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:11,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:11,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:11,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068377220] [2021-11-13 17:48:11,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068377220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:11,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:11,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:48:11,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178551241] [2021-11-13 17:48:11,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:11,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:48:11,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:11,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:48:11,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:48:11,227 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:48:11,228 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 785 transitions, 13064 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:11,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:48:11,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:48:11,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:48:14,901 INFO L129 PetriNetUnfolder]: 3062/7813 cut-off events. [2021-11-13 17:48:14,901 INFO L130 PetriNetUnfolder]: For 81941/81992 co-relation queries the response was YES. [2021-11-13 17:48:15,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43062 conditions, 7813 events. 3062/7813 cut-off events. For 81941/81992 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 69193 event pairs, 483 based on Foata normal form. 20/7677 useless extension candidates. Maximal degree in co-relation 42931. Up to 4548 conditions per place. [2021-11-13 17:48:15,052 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 713 selfloop transitions, 264 changer transitions 0/1029 dead transitions. [2021-11-13 17:48:15,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 1029 transitions, 18183 flow [2021-11-13 17:48:15,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:48:15,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-13 17:48:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 904 transitions. [2021-11-13 17:48:15,055 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6330532212885154 [2021-11-13 17:48:15,055 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 904 transitions. [2021-11-13 17:48:15,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 904 transitions. [2021-11-13 17:48:15,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:48:15,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 904 transitions. [2021-11-13 17:48:15,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 64.57142857142857) internal successors, (904), 14 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:15,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 102.0) internal successors, (1530), 15 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:15,062 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 102.0) internal successors, (1530), 15 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:15,062 INFO L186 Difference]: Start difference. First operand has 286 places, 785 transitions, 13064 flow. Second operand 14 states and 904 transitions. [2021-11-13 17:48:15,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 1029 transitions, 18183 flow [2021-11-13 17:48:15,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 1029 transitions, 17916 flow, removed 66 selfloop flow, removed 6 redundant places. [2021-11-13 17:48:15,948 INFO L242 Difference]: Finished difference. Result has 300 places, 835 transitions, 14789 flow [2021-11-13 17:48:15,949 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=12888, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=785, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=216, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14789, PETRI_PLACES=300, PETRI_TRANSITIONS=835} [2021-11-13 17:48:15,949 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 203 predicate places. [2021-11-13 17:48:15,949 INFO L470 AbstractCegarLoop]: Abstraction has has 300 places, 835 transitions, 14789 flow [2021-11-13 17:48:15,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:15,950 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:48:15,950 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:15,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-13 17:48:15,951 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:48:15,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:15,951 INFO L85 PathProgramCache]: Analyzing trace with hash -926930993, now seen corresponding path program 3 times [2021-11-13 17:48:15,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:15,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124901551] [2021-11-13 17:48:15,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:15,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:16,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:16,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:16,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124901551] [2021-11-13 17:48:16,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124901551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:16,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:16,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:48:16,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747152303] [2021-11-13 17:48:16,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:16,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:48:16,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:16,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:48:16,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:48:16,179 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 102 [2021-11-13 17:48:16,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 835 transitions, 14789 flow. Second operand has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:16,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:48:16,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 102 [2021-11-13 17:48:16,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:48:20,300 INFO L129 PetriNetUnfolder]: 3507/8628 cut-off events. [2021-11-13 17:48:20,300 INFO L130 PetriNetUnfolder]: For 96334/96379 co-relation queries the response was YES. [2021-11-13 17:48:20,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48277 conditions, 8628 events. 3507/8628 cut-off events. For 96334/96379 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 75682 event pairs, 788 based on Foata normal form. 33/8485 useless extension candidates. Maximal degree in co-relation 48139. Up to 2866 conditions per place. [2021-11-13 17:48:20,420 INFO L132 encePairwiseOnDemand]: 77/102 looper letters, 931 selfloop transitions, 284 changer transitions 6/1264 dead transitions. [2021-11-13 17:48:20,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 1264 transitions, 22230 flow [2021-11-13 17:48:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:48:20,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-13 17:48:20,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1050 transitions. [2021-11-13 17:48:20,423 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6862745098039216 [2021-11-13 17:48:20,423 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1050 transitions. [2021-11-13 17:48:20,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1050 transitions. [2021-11-13 17:48:20,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:48:20,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1050 transitions. [2021-11-13 17:48:20,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 70.0) internal successors, (1050), 15 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:20,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:20,430 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:20,430 INFO L186 Difference]: Start difference. First operand has 300 places, 835 transitions, 14789 flow. Second operand 15 states and 1050 transitions. [2021-11-13 17:48:20,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 1264 transitions, 22230 flow [2021-11-13 17:48:21,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 1264 transitions, 21878 flow, removed 128 selfloop flow, removed 5 redundant places. [2021-11-13 17:48:21,406 INFO L242 Difference]: Finished difference. Result has 315 places, 909 transitions, 16878 flow [2021-11-13 17:48:21,407 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=14541, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=835, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16878, PETRI_PLACES=315, PETRI_TRANSITIONS=909} [2021-11-13 17:48:21,408 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 218 predicate places. [2021-11-13 17:48:21,408 INFO L470 AbstractCegarLoop]: Abstraction has has 315 places, 909 transitions, 16878 flow [2021-11-13 17:48:21,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:21,409 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:48:21,409 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:21,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-13 17:48:21,410 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:48:21,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:21,410 INFO L85 PathProgramCache]: Analyzing trace with hash -229445249, now seen corresponding path program 4 times [2021-11-13 17:48:21,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:21,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488293478] [2021-11-13 17:48:21,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:21,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:21,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:21,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:21,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488293478] [2021-11-13 17:48:21,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488293478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:21,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:21,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:48:21,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115566406] [2021-11-13 17:48:21,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:21,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:48:21,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:21,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:48:21,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:48:21,819 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 102 [2021-11-13 17:48:21,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 909 transitions, 16878 flow. Second operand has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:21,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:48:21,820 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 102 [2021-11-13 17:48:21,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:48:26,740 INFO L129 PetriNetUnfolder]: 3599/8830 cut-off events. [2021-11-13 17:48:26,740 INFO L130 PetriNetUnfolder]: For 109451/109517 co-relation queries the response was YES. [2021-11-13 17:48:26,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52016 conditions, 8830 events. 3599/8830 cut-off events. For 109451/109517 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 77664 event pairs, 776 based on Foata normal form. 41/8694 useless extension candidates. Maximal degree in co-relation 51872. Up to 1985 conditions per place. [2021-11-13 17:48:26,900 INFO L132 encePairwiseOnDemand]: 77/102 looper letters, 1168 selfloop transitions, 213 changer transitions 8/1432 dead transitions. [2021-11-13 17:48:26,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 1432 transitions, 25535 flow [2021-11-13 17:48:26,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:48:26,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-13 17:48:26,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1070 transitions. [2021-11-13 17:48:26,903 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6993464052287581 [2021-11-13 17:48:26,904 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1070 transitions. [2021-11-13 17:48:26,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1070 transitions. [2021-11-13 17:48:26,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:48:26,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1070 transitions. [2021-11-13 17:48:26,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 71.33333333333333) internal successors, (1070), 15 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:26,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:26,929 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:26,929 INFO L186 Difference]: Start difference. First operand has 315 places, 909 transitions, 16878 flow. Second operand 15 states and 1070 transitions. [2021-11-13 17:48:26,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 1432 transitions, 25535 flow [2021-11-13 17:48:28,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1432 transitions, 25169 flow, removed 43 selfloop flow, removed 10 redundant places. [2021-11-13 17:48:28,249 INFO L242 Difference]: Finished difference. Result has 324 places, 982 transitions, 18409 flow [2021-11-13 17:48:28,250 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=16543, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=909, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=706, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18409, PETRI_PLACES=324, PETRI_TRANSITIONS=982} [2021-11-13 17:48:28,251 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 227 predicate places. [2021-11-13 17:48:28,251 INFO L470 AbstractCegarLoop]: Abstraction has has 324 places, 982 transitions, 18409 flow [2021-11-13 17:48:28,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:28,252 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:48:28,252 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:28,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-13 17:48:28,252 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:48:28,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:28,253 INFO L85 PathProgramCache]: Analyzing trace with hash 604456053, now seen corresponding path program 7 times [2021-11-13 17:48:28,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:28,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121361748] [2021-11-13 17:48:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:28,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:28,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:28,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121361748] [2021-11-13 17:48:28,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121361748] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:28,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:28,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:48:28,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924192415] [2021-11-13 17:48:28,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:28,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:48:28,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:28,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:48:28,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:48:28,491 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:48:28,492 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 982 transitions, 18409 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:28,492 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:48:28,492 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:48:28,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:48:33,144 INFO L129 PetriNetUnfolder]: 3442/8764 cut-off events. [2021-11-13 17:48:33,144 INFO L130 PetriNetUnfolder]: For 126110/126177 co-relation queries the response was YES. [2021-11-13 17:48:33,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54046 conditions, 8764 events. 3442/8764 cut-off events. For 126110/126177 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 79259 event pairs, 560 based on Foata normal form. 23/8629 useless extension candidates. Maximal degree in co-relation 53899. Up to 4852 conditions per place. [2021-11-13 17:48:33,349 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 858 selfloop transitions, 322 changer transitions 0/1236 dead transitions. [2021-11-13 17:48:33,350 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 1236 transitions, 24372 flow [2021-11-13 17:48:33,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:48:33,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-13 17:48:33,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 904 transitions. [2021-11-13 17:48:33,353 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6330532212885154 [2021-11-13 17:48:33,353 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 904 transitions. [2021-11-13 17:48:33,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 904 transitions. [2021-11-13 17:48:33,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:48:33,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 904 transitions. [2021-11-13 17:48:33,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 64.57142857142857) internal successors, (904), 14 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:33,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 102.0) internal successors, (1530), 15 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:33,360 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 102.0) internal successors, (1530), 15 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:33,361 INFO L186 Difference]: Start difference. First operand has 324 places, 982 transitions, 18409 flow. Second operand 14 states and 904 transitions. [2021-11-13 17:48:33,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 1236 transitions, 24372 flow [2021-11-13 17:48:35,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 1236 transitions, 24080 flow, removed 53 selfloop flow, removed 7 redundant places. [2021-11-13 17:48:35,347 INFO L242 Difference]: Finished difference. Result has 338 places, 1040 transitions, 20545 flow [2021-11-13 17:48:35,348 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=18172, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=675, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=20545, PETRI_PLACES=338, PETRI_TRANSITIONS=1040} [2021-11-13 17:48:35,350 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 241 predicate places. [2021-11-13 17:48:35,350 INFO L470 AbstractCegarLoop]: Abstraction has has 338 places, 1040 transitions, 20545 flow [2021-11-13 17:48:35,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:35,350 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:48:35,351 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:35,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-13 17:48:35,351 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:48:35,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:35,352 INFO L85 PathProgramCache]: Analyzing trace with hash 921378643, now seen corresponding path program 5 times [2021-11-13 17:48:35,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:35,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209158797] [2021-11-13 17:48:35,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:35,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:35,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:35,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:35,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209158797] [2021-11-13 17:48:35,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209158797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:35,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:35,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:48:35,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284386537] [2021-11-13 17:48:35,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:35,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:48:35,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:35,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:48:35,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:48:35,572 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 102 [2021-11-13 17:48:35,573 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 1040 transitions, 20545 flow. Second operand has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:35,573 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:48:35,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 102 [2021-11-13 17:48:35,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:48:40,876 INFO L129 PetriNetUnfolder]: 3827/9413 cut-off events. [2021-11-13 17:48:40,876 INFO L130 PetriNetUnfolder]: For 146747/146815 co-relation queries the response was YES. [2021-11-13 17:48:41,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59414 conditions, 9413 events. 3827/9413 cut-off events. For 146747/146815 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 84106 event pairs, 895 based on Foata normal form. 41/9276 useless extension candidates. Maximal degree in co-relation 59259. Up to 2870 conditions per place. [2021-11-13 17:48:41,239 INFO L132 encePairwiseOnDemand]: 77/102 looper letters, 1079 selfloop transitions, 339 changer transitions 5/1466 dead transitions. [2021-11-13 17:48:41,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 1466 transitions, 28842 flow [2021-11-13 17:48:41,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:48:41,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-13 17:48:41,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1044 transitions. [2021-11-13 17:48:41,244 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6823529411764706 [2021-11-13 17:48:41,244 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1044 transitions. [2021-11-13 17:48:41,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1044 transitions. [2021-11-13 17:48:41,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:48:41,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1044 transitions. [2021-11-13 17:48:41,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 69.6) internal successors, (1044), 15 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:41,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:41,250 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:41,251 INFO L186 Difference]: Start difference. First operand has 338 places, 1040 transitions, 20545 flow. Second operand 15 states and 1044 transitions. [2021-11-13 17:48:41,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 1466 transitions, 28842 flow [2021-11-13 17:48:42,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 1466 transitions, 28622 flow, removed 96 selfloop flow, removed 4 redundant places. [2021-11-13 17:48:42,977 INFO L242 Difference]: Finished difference. Result has 355 places, 1099 transitions, 22877 flow [2021-11-13 17:48:42,978 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=20329, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1040, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=280, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=706, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=22877, PETRI_PLACES=355, PETRI_TRANSITIONS=1099} [2021-11-13 17:48:42,979 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 258 predicate places. [2021-11-13 17:48:42,979 INFO L470 AbstractCegarLoop]: Abstraction has has 355 places, 1099 transitions, 22877 flow [2021-11-13 17:48:42,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:42,979 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:48:42,979 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:42,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-13 17:48:42,979 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:48:42,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:42,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1309292790, now seen corresponding path program 1 times [2021-11-13 17:48:42,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:42,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602214093] [2021-11-13 17:48:42,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:42,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:43,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:43,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:43,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602214093] [2021-11-13 17:48:43,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602214093] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:43,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:43,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:48:43,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738708612] [2021-11-13 17:48:43,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:43,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:48:43,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:43,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:48:43,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:48:43,164 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 102 [2021-11-13 17:48:43,165 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 1099 transitions, 22877 flow. Second operand has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:43,165 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:48:43,165 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 102 [2021-11-13 17:48:43,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:48:49,197 INFO L129 PetriNetUnfolder]: 3727/9239 cut-off events. [2021-11-13 17:48:49,197 INFO L130 PetriNetUnfolder]: For 167472/167554 co-relation queries the response was YES. [2021-11-13 17:48:49,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61375 conditions, 9239 events. 3727/9239 cut-off events. For 167472/167554 co-relation queries the response was YES. Maximal size of possible extension queue 382. Compared 82747 event pairs, 945 based on Foata normal form. 60/9145 useless extension candidates. Maximal degree in co-relation 61213. Up to 2532 conditions per place. [2021-11-13 17:48:49,407 INFO L132 encePairwiseOnDemand]: 81/102 looper letters, 1348 selfloop transitions, 180 changer transitions 0/1583 dead transitions. [2021-11-13 17:48:49,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 1583 transitions, 32118 flow [2021-11-13 17:48:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 17:48:49,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-13 17:48:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1072 transitions. [2021-11-13 17:48:49,409 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6568627450980392 [2021-11-13 17:48:49,410 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1072 transitions. [2021-11-13 17:48:49,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1072 transitions. [2021-11-13 17:48:49,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:48:49,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1072 transitions. [2021-11-13 17:48:49,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 67.0) internal successors, (1072), 16 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:49,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 102.0) internal successors, (1734), 17 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:49,415 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 102.0) internal successors, (1734), 17 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:49,415 INFO L186 Difference]: Start difference. First operand has 355 places, 1099 transitions, 22877 flow. Second operand 16 states and 1072 transitions. [2021-11-13 17:48:49,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 1583 transitions, 32118 flow [2021-11-13 17:48:51,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 1583 transitions, 31722 flow, removed 121 selfloop flow, removed 7 redundant places. [2021-11-13 17:48:51,808 INFO L242 Difference]: Finished difference. Result has 370 places, 1182 transitions, 24332 flow [2021-11-13 17:48:51,809 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=22532, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1099, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=953, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=24332, PETRI_PLACES=370, PETRI_TRANSITIONS=1182} [2021-11-13 17:48:51,810 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 273 predicate places. [2021-11-13 17:48:51,810 INFO L470 AbstractCegarLoop]: Abstraction has has 370 places, 1182 transitions, 24332 flow [2021-11-13 17:48:51,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:51,810 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:48:51,810 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:48:51,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-13 17:48:51,810 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:48:51,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:48:51,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1888462466, now seen corresponding path program 3 times [2021-11-13 17:48:51,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:48:51,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637904131] [2021-11-13 17:48:51,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:48:51,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:48:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:48:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:48:52,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:48:52,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637904131] [2021-11-13 17:48:52,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637904131] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:48:52,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:48:52,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:48:52,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915682937] [2021-11-13 17:48:52,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:48:52,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:48:52,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:48:52,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:48:52,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:48:52,129 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:48:52,130 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 1182 transitions, 24332 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:52,130 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:48:52,130 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:48:52,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:48:57,972 INFO L129 PetriNetUnfolder]: 3514/8969 cut-off events. [2021-11-13 17:48:57,972 INFO L130 PetriNetUnfolder]: For 173795/173904 co-relation queries the response was YES. [2021-11-13 17:48:58,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60931 conditions, 8969 events. 3514/8969 cut-off events. For 173795/173904 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 81733 event pairs, 527 based on Foata normal form. 43/8854 useless extension candidates. Maximal degree in co-relation 60762. Up to 2604 conditions per place. [2021-11-13 17:48:58,148 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 1312 selfloop transitions, 209 changer transitions 0/1584 dead transitions. [2021-11-13 17:48:58,148 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 1584 transitions, 32802 flow [2021-11-13 17:48:58,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:48:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-13 17:48:58,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1016 transitions. [2021-11-13 17:48:58,150 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.711484593837535 [2021-11-13 17:48:58,150 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1016 transitions. [2021-11-13 17:48:58,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1016 transitions. [2021-11-13 17:48:58,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:48:58,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1016 transitions. [2021-11-13 17:48:58,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 72.57142857142857) internal successors, (1016), 14 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:58,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 102.0) internal successors, (1530), 15 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:58,155 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 102.0) internal successors, (1530), 15 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:48:58,155 INFO L186 Difference]: Start difference. First operand has 370 places, 1182 transitions, 24332 flow. Second operand 14 states and 1016 transitions. [2021-11-13 17:48:58,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 1584 transitions, 32802 flow [2021-11-13 17:49:00,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 1584 transitions, 32532 flow, removed 89 selfloop flow, removed 5 redundant places. [2021-11-13 17:49:00,621 INFO L242 Difference]: Finished difference. Result has 384 places, 1206 transitions, 25586 flow [2021-11-13 17:49:00,622 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=24066, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=983, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25586, PETRI_PLACES=384, PETRI_TRANSITIONS=1206} [2021-11-13 17:49:00,622 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 287 predicate places. [2021-11-13 17:49:00,623 INFO L470 AbstractCegarLoop]: Abstraction has has 384 places, 1206 transitions, 25586 flow [2021-11-13 17:49:00,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:00,623 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:49:00,623 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:00,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-13 17:49:00,623 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:49:00,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:00,624 INFO L85 PathProgramCache]: Analyzing trace with hash 650825784, now seen corresponding path program 4 times [2021-11-13 17:49:00,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:00,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172831335] [2021-11-13 17:49:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:00,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:00,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:49:00,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172831335] [2021-11-13 17:49:00,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172831335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:00,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:00,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:49:00,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906053995] [2021-11-13 17:49:00,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:00,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:49:00,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:49:00,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:49:00,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:49:00,950 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:49:00,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 1206 transitions, 25586 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:00,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:49:00,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:49:00,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:49:07,865 INFO L129 PetriNetUnfolder]: 3628/9290 cut-off events. [2021-11-13 17:49:07,865 INFO L130 PetriNetUnfolder]: For 195223/195330 co-relation queries the response was YES. [2021-11-13 17:49:08,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64491 conditions, 9290 events. 3628/9290 cut-off events. For 195223/195330 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 85280 event pairs, 478 based on Foata normal form. 46/9171 useless extension candidates. Maximal degree in co-relation 64317. Up to 2544 conditions per place. [2021-11-13 17:49:08,063 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 1353 selfloop transitions, 233 changer transitions 2/1651 dead transitions. [2021-11-13 17:49:08,063 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 1651 transitions, 34928 flow [2021-11-13 17:49:08,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:49:08,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-13 17:49:08,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1087 transitions. [2021-11-13 17:49:08,066 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7104575163398693 [2021-11-13 17:49:08,066 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1087 transitions. [2021-11-13 17:49:08,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1087 transitions. [2021-11-13 17:49:08,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:49:08,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1087 transitions. [2021-11-13 17:49:08,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 72.46666666666667) internal successors, (1087), 15 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:08,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:08,071 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:08,071 INFO L186 Difference]: Start difference. First operand has 384 places, 1206 transitions, 25586 flow. Second operand 15 states and 1087 transitions. [2021-11-13 17:49:08,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 1651 transitions, 34928 flow [2021-11-13 17:49:10,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 1651 transitions, 34668 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-11-13 17:49:10,935 INFO L242 Difference]: Finished difference. Result has 395 places, 1246 transitions, 27212 flow [2021-11-13 17:49:10,936 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=25341, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=984, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27212, PETRI_PLACES=395, PETRI_TRANSITIONS=1246} [2021-11-13 17:49:10,937 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 298 predicate places. [2021-11-13 17:49:10,937 INFO L470 AbstractCegarLoop]: Abstraction has has 395 places, 1246 transitions, 27212 flow [2021-11-13 17:49:10,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:10,937 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:49:10,938 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:10,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-13 17:49:10,938 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:49:10,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:10,939 INFO L85 PathProgramCache]: Analyzing trace with hash 307129164, now seen corresponding path program 5 times [2021-11-13 17:49:10,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:10,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912497081] [2021-11-13 17:49:10,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:10,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:11,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:49:11,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912497081] [2021-11-13 17:49:11,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912497081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:11,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:11,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:49:11,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707413294] [2021-11-13 17:49:11,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:11,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:49:11,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:49:11,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:49:11,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:49:11,276 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:49:11,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 1246 transitions, 27212 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:11,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:49:11,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:49:11,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:49:17,985 INFO L129 PetriNetUnfolder]: 3686/9404 cut-off events. [2021-11-13 17:49:17,985 INFO L130 PetriNetUnfolder]: For 214368/214475 co-relation queries the response was YES. [2021-11-13 17:49:18,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66885 conditions, 9404 events. 3686/9404 cut-off events. For 214368/214475 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 86524 event pairs, 532 based on Foata normal form. 46/9283 useless extension candidates. Maximal degree in co-relation 66706. Up to 2708 conditions per place. [2021-11-13 17:49:18,229 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 1356 selfloop transitions, 253 changer transitions 0/1672 dead transitions. [2021-11-13 17:49:18,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 1672 transitions, 36334 flow [2021-11-13 17:49:18,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:49:18,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-13 17:49:18,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1086 transitions. [2021-11-13 17:49:18,231 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7098039215686275 [2021-11-13 17:49:18,231 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1086 transitions. [2021-11-13 17:49:18,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1086 transitions. [2021-11-13 17:49:18,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:49:18,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1086 transitions. [2021-11-13 17:49:18,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 72.4) internal successors, (1086), 15 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:18,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:18,236 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:18,236 INFO L186 Difference]: Start difference. First operand has 395 places, 1246 transitions, 27212 flow. Second operand 15 states and 1086 transitions. [2021-11-13 17:49:18,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 1672 transitions, 36334 flow [2021-11-13 17:49:21,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 1672 transitions, 36095 flow, removed 34 selfloop flow, removed 8 redundant places. [2021-11-13 17:49:21,273 INFO L242 Difference]: Finished difference. Result has 405 places, 1276 transitions, 28740 flow [2021-11-13 17:49:21,274 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=26973, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1004, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=28740, PETRI_PLACES=405, PETRI_TRANSITIONS=1276} [2021-11-13 17:49:21,274 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 308 predicate places. [2021-11-13 17:49:21,275 INFO L470 AbstractCegarLoop]: Abstraction has has 405 places, 1276 transitions, 28740 flow [2021-11-13 17:49:21,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:21,275 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:49:21,275 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:21,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-13 17:49:21,275 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:49:21,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:21,276 INFO L85 PathProgramCache]: Analyzing trace with hash -494354943, now seen corresponding path program 8 times [2021-11-13 17:49:21,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:21,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91929054] [2021-11-13 17:49:21,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:21,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:21,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:21,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:49:21,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91929054] [2021-11-13 17:49:21,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91929054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:21,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:21,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:49:21,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705844536] [2021-11-13 17:49:21,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:21,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:49:21,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:49:21,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:49:21,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:49:21,600 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 102 [2021-11-13 17:49:21,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 1276 transitions, 28740 flow. Second operand has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:21,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:49:21,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 102 [2021-11-13 17:49:21,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:49:28,291 INFO L129 PetriNetUnfolder]: 3728/9491 cut-off events. [2021-11-13 17:49:28,291 INFO L130 PetriNetUnfolder]: For 226648/226722 co-relation queries the response was YES. [2021-11-13 17:49:28,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69012 conditions, 9491 events. 3728/9491 cut-off events. For 226648/226722 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 87122 event pairs, 603 based on Foata normal form. 25/9339 useless extension candidates. Maximal degree in co-relation 68829. Up to 4050 conditions per place. [2021-11-13 17:49:28,590 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 1191 selfloop transitions, 377 changer transitions 1/1632 dead transitions. [2021-11-13 17:49:28,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 1632 transitions, 37718 flow [2021-11-13 17:49:28,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:49:28,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-13 17:49:28,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 936 transitions. [2021-11-13 17:49:28,593 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6554621848739496 [2021-11-13 17:49:28,593 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 936 transitions. [2021-11-13 17:49:28,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 936 transitions. [2021-11-13 17:49:28,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:49:28,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 936 transitions. [2021-11-13 17:49:28,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 66.85714285714286) internal successors, (936), 14 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:28,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 102.0) internal successors, (1530), 15 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:28,597 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 102.0) internal successors, (1530), 15 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:28,597 INFO L186 Difference]: Start difference. First operand has 405 places, 1276 transitions, 28740 flow. Second operand 14 states and 936 transitions. [2021-11-13 17:49:28,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 1632 transitions, 37718 flow [2021-11-13 17:49:31,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 1632 transitions, 37395 flow, removed 41 selfloop flow, removed 8 redundant places. [2021-11-13 17:49:31,953 INFO L242 Difference]: Finished difference. Result has 416 places, 1316 transitions, 31222 flow [2021-11-13 17:49:31,955 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=28511, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=337, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=910, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=31222, PETRI_PLACES=416, PETRI_TRANSITIONS=1316} [2021-11-13 17:49:31,956 INFO L334 CegarLoopForPetriNet]: 97 programPoint places, 319 predicate places. [2021-11-13 17:49:31,956 INFO L470 AbstractCegarLoop]: Abstraction has has 416 places, 1316 transitions, 31222 flow [2021-11-13 17:49:31,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:31,956 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 17:49:31,956 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:31,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-13 17:49:31,957 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-13 17:49:31,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:31,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1217329288, now seen corresponding path program 2 times [2021-11-13 17:49:31,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:49:31,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45202787] [2021-11-13 17:49:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:31,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:49:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:32,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:49:32,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45202787] [2021-11-13 17:49:32,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45202787] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:32,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:32,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:49:32,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308683922] [2021-11-13 17:49:32,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:32,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:49:32,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:49:32,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:49:32,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:49:32,157 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 102 [2021-11-13 17:49:32,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 1316 transitions, 31222 flow. Second operand has 13 states, 13 states have (on average 51.30769230769231) internal successors, (667), 13 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:32,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 17:49:32,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 102 [2021-11-13 17:49:32,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 17:49:39,823 INFO L129 PetriNetUnfolder]: 4267/10554 cut-off events. [2021-11-13 17:49:39,823 INFO L130 PetriNetUnfolder]: For 268068/268150 co-relation queries the response was YES. [2021-11-13 17:49:40,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78158 conditions, 10554 events. 4267/10554 cut-off events. For 268068/268150 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 97397 event pairs, 1128 based on Foata normal form. 40/10422 useless extension candidates. Maximal degree in co-relation 77969. Up to 4729 conditions per place. [2021-11-13 17:49:40,102 INFO L132 encePairwiseOnDemand]: 81/102 looper letters, 1256 selfloop transitions, 413 changer transitions 0/1724 dead transitions. [2021-11-13 17:49:40,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1724 transitions, 40951 flow [2021-11-13 17:49:40,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:49:40,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-13 17:49:40,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 984 transitions. [2021-11-13 17:49:40,104 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6431372549019608 [2021-11-13 17:49:40,104 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 984 transitions. [2021-11-13 17:49:40,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 984 transitions. [2021-11-13 17:49:40,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:49:40,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 984 transitions. [2021-11-13 17:49:40,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 65.6) internal successors, (984), 15 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:40,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:40,108 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 102.0) internal successors, (1632), 16 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:49:40,108 INFO L186 Difference]: Start difference. First operand has 416 places, 1316 transitions, 31222 flow. Second operand 15 states and 984 transitions. [2021-11-13 17:49:40,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1724 transitions, 40951 flow