./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa --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 09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:12:27,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:12:27,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:12:27,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:12:27,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:12:27,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:12:27,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:12:27,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:12:27,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:12:27,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:12:27,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:12:27,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:12:27,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:12:27,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:12:27,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:12:27,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:12:27,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:12:27,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:12:27,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:12:27,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:12:27,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:12:27,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:12:27,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:12:27,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:12:27,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:12:27,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:12:27,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:12:27,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:12:27,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:12:27,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:12:27,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:12:27,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:12:27,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:12:27,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:12:27,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:12:27,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:12:27,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:12:27,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:12:27,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:12:27,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:12:27,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:12:27,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 18:12:27,288 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:12:27,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:12:27,288 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:12:27,289 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:12:27,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:12:27,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:12:27,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:12:27,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:12:27,290 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:12:27,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:12:27,290 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:12:27,290 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:12:27,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:12:27,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:12:27,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:12:27,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:12:27,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:12:27,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:12:27,291 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 18:12:27,291 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:12:27,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:12:27,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:12:27,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:12:27,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:12:27,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:12:27,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:12:27,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:12:27,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:12:27,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:12:27,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:12:27,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:12:27,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:12:27,292 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:12:27,293 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:12:27,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:12:27,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:12:27,293 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_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6 [2021-12-06 18:12:27,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:12:27,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:12:27,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:12:27,496 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:12:27,496 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:12:27,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i [2021-12-06 18:12:27,542 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/data/1611ca0a4/ee8e79b9c0124e10a5e1b05c035f79bf/FLAG7f1998788 [2021-12-06 18:12:27,989 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:12:27,989 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i [2021-12-06 18:12:28,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/data/1611ca0a4/ee8e79b9c0124e10a5e1b05c035f79bf/FLAG7f1998788 [2021-12-06 18:12:28,016 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/data/1611ca0a4/ee8e79b9c0124e10a5e1b05c035f79bf [2021-12-06 18:12:28,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:12:28,019 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:12:28,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:12:28,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:12:28,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:12:28,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:12:28" (1/1) ... [2021-12-06 18:12:28,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5698f187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28, skipping insertion in model container [2021-12-06 18:12:28,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:12:28" (1/1) ... [2021-12-06 18:12:28,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:12:28,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:12:28,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:12:28,465 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:12:28,503 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:12:28,553 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:12:28,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28 WrapperNode [2021-12-06 18:12:28,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:12:28,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:12:28,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:12:28,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:12:28,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28" (1/1) ... [2021-12-06 18:12:28,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28" (1/1) ... [2021-12-06 18:12:28,589 INFO L137 Inliner]: procedures = 263, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2021-12-06 18:12:28,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:12:28,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:12:28,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:12:28,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:12:28,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28" (1/1) ... [2021-12-06 18:12:28,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28" (1/1) ... [2021-12-06 18:12:28,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28" (1/1) ... [2021-12-06 18:12:28,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28" (1/1) ... [2021-12-06 18:12:28,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28" (1/1) ... [2021-12-06 18:12:28,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28" (1/1) ... [2021-12-06 18:12:28,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28" (1/1) ... [2021-12-06 18:12:28,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:12:28,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:12:28,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:12:28,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:12:28,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28" (1/1) ... [2021-12-06 18:12:28,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:12:28,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:12:28,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:12:28,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:12:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:12:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:12:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:12:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:12:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 18:12:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:12:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 18:12:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 18:12:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:12:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:12:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:12:28,665 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 18:12:28,760 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:12:28,761 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:12:28,898 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:12:28,904 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:12:28,904 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:12:28,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:12:28 BoogieIcfgContainer [2021-12-06 18:12:28,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:12:28,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:12:28,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:12:28,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:12:28,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:12:28" (1/3) ... [2021-12-06 18:12:28,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4c0485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:12:28, skipping insertion in model container [2021-12-06 18:12:28,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:12:28" (2/3) ... [2021-12-06 18:12:28,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4c0485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:12:28, skipping insertion in model container [2021-12-06 18:12:28,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:12:28" (3/3) ... [2021-12-06 18:12:28,912 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_04-munge_nr.i [2021-12-06 18:12:28,915 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 18:12:28,916 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:12:28,916 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-12-06 18:12:28,916 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 18:12:28,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:12:28,952 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-06 18:12:28,988 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:12:28,994 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 [2021-12-06 18:12:28,994 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-06 18:12:29,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 76 transitions, 160 flow [2021-12-06 18:12:29,030 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2021-12-06 18:12:29,030 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 18:12:29,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 75 events. 0/75 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-12-06 18:12:29,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 76 transitions, 160 flow [2021-12-06 18:12:29,035 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 67 transitions, 137 flow [2021-12-06 18:12:29,043 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-12-06 18:12:29,043 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:12:29,043 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:29,044 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] [2021-12-06 18:12:29,044 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)] === [2021-12-06 18:12:29,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:29,048 INFO L85 PathProgramCache]: Analyzing trace with hash -539627810, now seen corresponding path program 1 times [2021-12-06 18:12:29,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:29,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311792750] [2021-12-06 18:12:29,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:29,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:29,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:29,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:29,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311792750] [2021-12-06 18:12:29,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311792750] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:29,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:29,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:12:29,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147748848] [2021-12-06 18:12:29,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:29,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:12:29,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:29,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:12:29,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:12:29,242 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 76 [2021-12-06 18:12:29,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 137 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:29,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 76 [2021-12-06 18:12:29,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:29,318 INFO L129 PetriNetUnfolder]: 37/226 cut-off events. [2021-12-06 18:12:29,319 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 18:12:29,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 226 events. 37/226 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 918 event pairs, 15 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 295. Up to 54 conditions per place. [2021-12-06 18:12:29,323 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 17 selfloop transitions, 6 changer transitions 0/77 dead transitions. [2021-12-06 18:12:29,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 77 transitions, 203 flow [2021-12-06 18:12:29,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:12:29,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:12:29,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2021-12-06 18:12:29,333 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9254385964912281 [2021-12-06 18:12:29,333 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 211 transitions. [2021-12-06 18:12:29,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 211 transitions. [2021-12-06 18:12:29,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:29,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 211 transitions. [2021-12-06 18:12:29,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,344 INFO L186 Difference]: Start difference. First operand has 71 places, 67 transitions, 137 flow. Second operand 3 states and 211 transitions. [2021-12-06 18:12:29,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 77 transitions, 203 flow [2021-12-06 18:12:29,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 77 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 18:12:29,351 INFO L242 Difference]: Finished difference. Result has 74 places, 73 transitions, 188 flow [2021-12-06 18:12:29,352 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=74, PETRI_TRANSITIONS=73} [2021-12-06 18:12:29,355 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 3 predicate places. [2021-12-06 18:12:29,355 INFO L470 AbstractCegarLoop]: Abstraction has has 74 places, 73 transitions, 188 flow [2021-12-06 18:12:29,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,355 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:29,356 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] [2021-12-06 18:12:29,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:12:29,356 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:12:29,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:29,357 INFO L85 PathProgramCache]: Analyzing trace with hash 331510881, now seen corresponding path program 1 times [2021-12-06 18:12:29,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:29,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580320077] [2021-12-06 18:12:29,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:29,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:29,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:29,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:29,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580320077] [2021-12-06 18:12:29,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580320077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:29,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:29,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:12:29,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578526200] [2021-12-06 18:12:29,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:29,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:12:29,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:29,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:12:29,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:12:29,410 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 76 [2021-12-06 18:12:29,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 73 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:29,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 76 [2021-12-06 18:12:29,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:29,488 INFO L129 PetriNetUnfolder]: 60/332 cut-off events. [2021-12-06 18:12:29,489 INFO L130 PetriNetUnfolder]: For 93/97 co-relation queries the response was YES. [2021-12-06 18:12:29,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 332 events. 60/332 cut-off events. For 93/97 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1684 event pairs, 28 based on Foata normal form. 2/300 useless extension candidates. Maximal degree in co-relation 550. Up to 113 conditions per place. [2021-12-06 18:12:29,493 INFO L132 encePairwiseOnDemand]: 70/76 looper letters, 25 selfloop transitions, 7 changer transitions 0/83 dead transitions. [2021-12-06 18:12:29,493 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 83 transitions, 290 flow [2021-12-06 18:12:29,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:12:29,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:12:29,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2021-12-06 18:12:29,495 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8859649122807017 [2021-12-06 18:12:29,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 202 transitions. [2021-12-06 18:12:29,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 202 transitions. [2021-12-06 18:12:29,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:29,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 202 transitions. [2021-12-06 18:12:29,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,499 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,499 INFO L186 Difference]: Start difference. First operand has 74 places, 73 transitions, 188 flow. Second operand 3 states and 202 transitions. [2021-12-06 18:12:29,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 83 transitions, 290 flow [2021-12-06 18:12:29,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 83 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:12:29,503 INFO L242 Difference]: Finished difference. Result has 76 places, 78 transitions, 232 flow [2021-12-06 18:12:29,503 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=76, PETRI_TRANSITIONS=78} [2021-12-06 18:12:29,504 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 5 predicate places. [2021-12-06 18:12:29,504 INFO L470 AbstractCegarLoop]: Abstraction has has 76 places, 78 transitions, 232 flow [2021-12-06 18:12:29,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,504 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:29,504 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] [2021-12-06 18:12:29,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:12:29,504 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:12:29,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:29,505 INFO L85 PathProgramCache]: Analyzing trace with hash 550201068, now seen corresponding path program 1 times [2021-12-06 18:12:29,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:29,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143105086] [2021-12-06 18:12:29,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:29,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:29,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:29,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143105086] [2021-12-06 18:12:29,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143105086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:29,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:29,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:12:29,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330717583] [2021-12-06 18:12:29,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:29,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:12:29,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:29,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:12:29,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:12:29,547 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 76 [2021-12-06 18:12:29,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 78 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,548 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:29,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 76 [2021-12-06 18:12:29,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:29,608 INFO L129 PetriNetUnfolder]: 62/310 cut-off events. [2021-12-06 18:12:29,608 INFO L130 PetriNetUnfolder]: For 143/147 co-relation queries the response was YES. [2021-12-06 18:12:29,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 310 events. 62/310 cut-off events. For 143/147 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1464 event pairs, 21 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 609. Up to 109 conditions per place. [2021-12-06 18:12:29,611 INFO L132 encePairwiseOnDemand]: 70/76 looper letters, 28 selfloop transitions, 9 changer transitions 0/89 dead transitions. [2021-12-06 18:12:29,611 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 89 transitions, 356 flow [2021-12-06 18:12:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:12:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:12:29,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2021-12-06 18:12:29,613 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8859649122807017 [2021-12-06 18:12:29,613 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 202 transitions. [2021-12-06 18:12:29,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 202 transitions. [2021-12-06 18:12:29,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:29,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 202 transitions. [2021-12-06 18:12:29,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,615 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,615 INFO L186 Difference]: Start difference. First operand has 76 places, 78 transitions, 232 flow. Second operand 3 states and 202 transitions. [2021-12-06 18:12:29,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 89 transitions, 356 flow [2021-12-06 18:12:29,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 89 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:12:29,619 INFO L242 Difference]: Finished difference. Result has 78 places, 83 transitions, 286 flow [2021-12-06 18:12:29,620 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=78, PETRI_TRANSITIONS=83} [2021-12-06 18:12:29,620 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 7 predicate places. [2021-12-06 18:12:29,620 INFO L470 AbstractCegarLoop]: Abstraction has has 78 places, 83 transitions, 286 flow [2021-12-06 18:12:29,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,621 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:29,621 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] [2021-12-06 18:12:29,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:12:29,621 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:12:29,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:29,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1721959220, now seen corresponding path program 1 times [2021-12-06 18:12:29,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:29,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997998826] [2021-12-06 18:12:29,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:29,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:29,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:29,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:29,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997998826] [2021-12-06 18:12:29,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997998826] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:29,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:29,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:12:29,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687031089] [2021-12-06 18:12:29,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:29,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:12:29,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:29,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:12:29,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:12:29,704 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-12-06 18:12:29,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 83 transitions, 286 flow. Second operand has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:29,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-12-06 18:12:29,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:29,880 INFO L129 PetriNetUnfolder]: 56/377 cut-off events. [2021-12-06 18:12:29,881 INFO L130 PetriNetUnfolder]: For 185/185 co-relation queries the response was YES. [2021-12-06 18:12:29,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 741 conditions, 377 events. 56/377 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2024 event pairs, 4 based on Foata normal form. 1/363 useless extension candidates. Maximal degree in co-relation 705. Up to 45 conditions per place. [2021-12-06 18:12:29,884 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 23 selfloop transitions, 20 changer transitions 0/109 dead transitions. [2021-12-06 18:12:29,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 109 transitions, 424 flow [2021-12-06 18:12:29,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 18:12:29,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 18:12:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 682 transitions. [2021-12-06 18:12:29,889 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8157894736842105 [2021-12-06 18:12:29,889 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 682 transitions. [2021-12-06 18:12:29,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 682 transitions. [2021-12-06 18:12:29,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:29,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 682 transitions. [2021-12-06 18:12:29,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,897 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,898 INFO L186 Difference]: Start difference. First operand has 78 places, 83 transitions, 286 flow. Second operand 11 states and 682 transitions. [2021-12-06 18:12:29,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 109 transitions, 424 flow [2021-12-06 18:12:29,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 109 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:12:29,905 INFO L242 Difference]: Finished difference. Result has 88 places, 99 transitions, 355 flow [2021-12-06 18:12:29,905 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=355, PETRI_PLACES=88, PETRI_TRANSITIONS=99} [2021-12-06 18:12:29,906 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 17 predicate places. [2021-12-06 18:12:29,906 INFO L470 AbstractCegarLoop]: Abstraction has has 88 places, 99 transitions, 355 flow [2021-12-06 18:12:29,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,907 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:29,907 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] [2021-12-06 18:12:29,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:12:29,907 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)] === [2021-12-06 18:12:29,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:29,908 INFO L85 PathProgramCache]: Analyzing trace with hash 537907934, now seen corresponding path program 2 times [2021-12-06 18:12:29,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:29,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917414600] [2021-12-06 18:12:29,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:29,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:29,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:29,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:29,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917414600] [2021-12-06 18:12:29,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917414600] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:29,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:29,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:12:29,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702916862] [2021-12-06 18:12:29,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:29,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:12:29,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:29,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:12:29,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:12:29,989 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-12-06 18:12:29,990 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 99 transitions, 355 flow. Second operand has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:29,990 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:29,990 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-12-06 18:12:29,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:30,150 INFO L129 PetriNetUnfolder]: 60/455 cut-off events. [2021-12-06 18:12:30,150 INFO L130 PetriNetUnfolder]: For 187/202 co-relation queries the response was YES. [2021-12-06 18:12:30,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 920 conditions, 455 events. 60/455 cut-off events. For 187/202 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2704 event pairs, 5 based on Foata normal form. 15/448 useless extension candidates. Maximal degree in co-relation 882. Up to 52 conditions per place. [2021-12-06 18:12:30,153 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 31 selfloop transitions, 23 changer transitions 0/120 dead transitions. [2021-12-06 18:12:30,153 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 120 transitions, 543 flow [2021-12-06 18:12:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:12:30,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-06 18:12:30,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 567 transitions. [2021-12-06 18:12:30,156 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8289473684210527 [2021-12-06 18:12:30,156 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 567 transitions. [2021-12-06 18:12:30,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 567 transitions. [2021-12-06 18:12:30,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:30,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 567 transitions. [2021-12-06 18:12:30,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 76.0) internal successors, (760), 10 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,160 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 76.0) internal successors, (760), 10 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,160 INFO L186 Difference]: Start difference. First operand has 88 places, 99 transitions, 355 flow. Second operand 9 states and 567 transitions. [2021-12-06 18:12:30,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 120 transitions, 543 flow [2021-12-06 18:12:30,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 120 transitions, 543 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 18:12:30,166 INFO L242 Difference]: Finished difference. Result has 101 places, 108 transitions, 481 flow [2021-12-06 18:12:30,166 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=481, PETRI_PLACES=101, PETRI_TRANSITIONS=108} [2021-12-06 18:12:30,167 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 30 predicate places. [2021-12-06 18:12:30,167 INFO L470 AbstractCegarLoop]: Abstraction has has 101 places, 108 transitions, 481 flow [2021-12-06 18:12:30,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,168 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:30,168 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] [2021-12-06 18:12:30,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:12:30,169 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)] === [2021-12-06 18:12:30,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:30,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1413346108, now seen corresponding path program 3 times [2021-12-06 18:12:30,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:30,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979476063] [2021-12-06 18:12:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:30,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:30,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:30,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:30,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979476063] [2021-12-06 18:12:30,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979476063] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:30,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:30,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:12:30,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390675214] [2021-12-06 18:12:30,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:30,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:12:30,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:30,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:12:30,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:12:30,245 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-12-06 18:12:30,246 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 108 transitions, 481 flow. Second operand has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,246 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:30,246 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-12-06 18:12:30,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:30,451 INFO L129 PetriNetUnfolder]: 96/727 cut-off events. [2021-12-06 18:12:30,451 INFO L130 PetriNetUnfolder]: For 620/638 co-relation queries the response was YES. [2021-12-06 18:12:30,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 727 events. 96/727 cut-off events. For 620/638 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5319 event pairs, 10 based on Foata normal form. 14/705 useless extension candidates. Maximal degree in co-relation 1561. Up to 90 conditions per place. [2021-12-06 18:12:30,457 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 32 selfloop transitions, 32 changer transitions 0/130 dead transitions. [2021-12-06 18:12:30,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 130 transitions, 730 flow [2021-12-06 18:12:30,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 18:12:30,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 18:12:30,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 686 transitions. [2021-12-06 18:12:30,461 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8205741626794258 [2021-12-06 18:12:30,461 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 686 transitions. [2021-12-06 18:12:30,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 686 transitions. [2021-12-06 18:12:30,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:30,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 686 transitions. [2021-12-06 18:12:30,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 62.36363636363637) internal successors, (686), 11 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,467 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,467 INFO L186 Difference]: Start difference. First operand has 101 places, 108 transitions, 481 flow. Second operand 11 states and 686 transitions. [2021-12-06 18:12:30,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 130 transitions, 730 flow [2021-12-06 18:12:30,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 130 transitions, 716 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:12:30,479 INFO L242 Difference]: Finished difference. Result has 113 places, 119 transitions, 649 flow [2021-12-06 18:12:30,479 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=649, PETRI_PLACES=113, PETRI_TRANSITIONS=119} [2021-12-06 18:12:30,480 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 42 predicate places. [2021-12-06 18:12:30,480 INFO L470 AbstractCegarLoop]: Abstraction has has 113 places, 119 transitions, 649 flow [2021-12-06 18:12:30,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,481 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:30,481 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] [2021-12-06 18:12:30,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 18:12:30,481 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)] === [2021-12-06 18:12:30,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:30,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1215150082, now seen corresponding path program 4 times [2021-12-06 18:12:30,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:30,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233563777] [2021-12-06 18:12:30,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:30,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:30,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:30,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233563777] [2021-12-06 18:12:30,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233563777] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:30,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:30,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:12:30,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559360052] [2021-12-06 18:12:30,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:30,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:12:30,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:30,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:12:30,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:12:30,551 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-12-06 18:12:30,551 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 119 transitions, 649 flow. Second operand has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:30,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-12-06 18:12:30,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:30,762 INFO L129 PetriNetUnfolder]: 140/1068 cut-off events. [2021-12-06 18:12:30,762 INFO L130 PetriNetUnfolder]: For 1550/1594 co-relation queries the response was YES. [2021-12-06 18:12:30,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2501 conditions, 1068 events. 140/1068 cut-off events. For 1550/1594 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 9015 event pairs, 19 based on Foata normal form. 29/1039 useless extension candidates. Maximal degree in co-relation 2453. Up to 130 conditions per place. [2021-12-06 18:12:30,769 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 48 selfloop transitions, 38 changer transitions 0/152 dead transitions. [2021-12-06 18:12:30,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 152 transitions, 1063 flow [2021-12-06 18:12:30,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 18:12:30,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 18:12:30,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 635 transitions. [2021-12-06 18:12:30,772 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8355263157894737 [2021-12-06 18:12:30,772 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 635 transitions. [2021-12-06 18:12:30,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 635 transitions. [2021-12-06 18:12:30,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:30,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 635 transitions. [2021-12-06 18:12:30,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,776 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,776 INFO L186 Difference]: Start difference. First operand has 113 places, 119 transitions, 649 flow. Second operand 10 states and 635 transitions. [2021-12-06 18:12:30,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 152 transitions, 1063 flow [2021-12-06 18:12:30,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 152 transitions, 1021 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-12-06 18:12:30,784 INFO L242 Difference]: Finished difference. Result has 124 places, 134 transitions, 892 flow [2021-12-06 18:12:30,785 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=892, PETRI_PLACES=124, PETRI_TRANSITIONS=134} [2021-12-06 18:12:30,785 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 53 predicate places. [2021-12-06 18:12:30,785 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 134 transitions, 892 flow [2021-12-06 18:12:30,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,786 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:30,786 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] [2021-12-06 18:12:30,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 18:12:30,786 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)] === [2021-12-06 18:12:30,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:30,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1401840898, now seen corresponding path program 5 times [2021-12-06 18:12:30,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:30,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154390518] [2021-12-06 18:12:30,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:30,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:30,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:30,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:30,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154390518] [2021-12-06 18:12:30,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154390518] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:30,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:30,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:12:30,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488950267] [2021-12-06 18:12:30,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:30,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:12:30,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:30,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:12:30,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:12:30,848 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-12-06 18:12:30,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 134 transitions, 892 flow. Second operand has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:30,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:30,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-12-06 18:12:30,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:31,041 INFO L129 PetriNetUnfolder]: 140/1123 cut-off events. [2021-12-06 18:12:31,041 INFO L130 PetriNetUnfolder]: For 2461/2500 co-relation queries the response was YES. [2021-12-06 18:12:31,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2786 conditions, 1123 events. 140/1123 cut-off events. For 2461/2500 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 9633 event pairs, 21 based on Foata normal form. 28/1087 useless extension candidates. Maximal degree in co-relation 2732. Up to 136 conditions per place. [2021-12-06 18:12:31,049 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 48 selfloop transitions, 43 changer transitions 0/157 dead transitions. [2021-12-06 18:12:31,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 157 transitions, 1253 flow [2021-12-06 18:12:31,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 18:12:31,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 18:12:31,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 631 transitions. [2021-12-06 18:12:31,051 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8302631578947368 [2021-12-06 18:12:31,051 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 631 transitions. [2021-12-06 18:12:31,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 631 transitions. [2021-12-06 18:12:31,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:31,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 631 transitions. [2021-12-06 18:12:31,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 63.1) internal successors, (631), 10 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,055 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,055 INFO L186 Difference]: Start difference. First operand has 124 places, 134 transitions, 892 flow. Second operand 10 states and 631 transitions. [2021-12-06 18:12:31,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 157 transitions, 1253 flow [2021-12-06 18:12:31,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 157 transitions, 1235 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-12-06 18:12:31,065 INFO L242 Difference]: Finished difference. Result has 137 places, 141 transitions, 1100 flow [2021-12-06 18:12:31,065 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1100, PETRI_PLACES=137, PETRI_TRANSITIONS=141} [2021-12-06 18:12:31,066 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 66 predicate places. [2021-12-06 18:12:31,066 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 141 transitions, 1100 flow [2021-12-06 18:12:31,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,066 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:31,067 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] [2021-12-06 18:12:31,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 18:12:31,067 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)] === [2021-12-06 18:12:31,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:31,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1221462152, now seen corresponding path program 6 times [2021-12-06 18:12:31,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:31,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564060087] [2021-12-06 18:12:31,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:31,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:31,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:31,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:31,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564060087] [2021-12-06 18:12:31,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564060087] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:31,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:31,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:12:31,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013307728] [2021-12-06 18:12:31,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:31,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:12:31,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:31,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:12:31,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:12:31,124 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-12-06 18:12:31,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 141 transitions, 1100 flow. Second operand has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:31,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-12-06 18:12:31,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:31,341 INFO L129 PetriNetUnfolder]: 140/1125 cut-off events. [2021-12-06 18:12:31,341 INFO L130 PetriNetUnfolder]: For 3576/3615 co-relation queries the response was YES. [2021-12-06 18:12:31,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2960 conditions, 1125 events. 140/1125 cut-off events. For 3576/3615 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 9675 event pairs, 20 based on Foata normal form. 25/1090 useless extension candidates. Maximal degree in co-relation 2901. Up to 138 conditions per place. [2021-12-06 18:12:31,349 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 47 selfloop transitions, 46 changer transitions 0/159 dead transitions. [2021-12-06 18:12:31,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 159 transitions, 1407 flow [2021-12-06 18:12:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 18:12:31,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 18:12:31,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 694 transitions. [2021-12-06 18:12:31,351 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8301435406698564 [2021-12-06 18:12:31,351 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 694 transitions. [2021-12-06 18:12:31,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 694 transitions. [2021-12-06 18:12:31,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:31,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 694 transitions. [2021-12-06 18:12:31,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 63.09090909090909) internal successors, (694), 11 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,356 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,356 INFO L186 Difference]: Start difference. First operand has 137 places, 141 transitions, 1100 flow. Second operand 11 states and 694 transitions. [2021-12-06 18:12:31,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 159 transitions, 1407 flow [2021-12-06 18:12:31,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 159 transitions, 1361 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-12-06 18:12:31,367 INFO L242 Difference]: Finished difference. Result has 147 places, 147 transitions, 1272 flow [2021-12-06 18:12:31,367 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1272, PETRI_PLACES=147, PETRI_TRANSITIONS=147} [2021-12-06 18:12:31,368 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 76 predicate places. [2021-12-06 18:12:31,368 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 147 transitions, 1272 flow [2021-12-06 18:12:31,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,368 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:31,369 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] [2021-12-06 18:12:31,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 18:12:31,369 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:12:31,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:31,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1378158454, now seen corresponding path program 7 times [2021-12-06 18:12:31,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:31,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526461396] [2021-12-06 18:12:31,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:31,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:31,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:31,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:31,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526461396] [2021-12-06 18:12:31,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526461396] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:31,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:31,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:12:31,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406955289] [2021-12-06 18:12:31,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:31,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:12:31,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:31,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:12:31,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:12:31,422 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-12-06 18:12:31,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 147 transitions, 1272 flow. Second operand has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,423 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:31,423 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-12-06 18:12:31,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:31,617 INFO L129 PetriNetUnfolder]: 108/946 cut-off events. [2021-12-06 18:12:31,618 INFO L130 PetriNetUnfolder]: For 3859/3894 co-relation queries the response was YES. [2021-12-06 18:12:31,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2649 conditions, 946 events. 108/946 cut-off events. For 3859/3894 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 7651 event pairs, 14 based on Foata normal form. 22/923 useless extension candidates. Maximal degree in co-relation 2588. Up to 116 conditions per place. [2021-12-06 18:12:31,625 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 48 selfloop transitions, 40 changer transitions 0/154 dead transitions. [2021-12-06 18:12:31,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 154 transitions, 1443 flow [2021-12-06 18:12:31,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 18:12:31,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 18:12:31,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 692 transitions. [2021-12-06 18:12:31,627 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8277511961722488 [2021-12-06 18:12:31,627 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 692 transitions. [2021-12-06 18:12:31,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 692 transitions. [2021-12-06 18:12:31,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:31,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 692 transitions. [2021-12-06 18:12:31,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 62.90909090909091) internal successors, (692), 11 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) [2021-12-06 18:12:31,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,631 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,631 INFO L186 Difference]: Start difference. First operand has 147 places, 147 transitions, 1272 flow. Second operand 11 states and 692 transitions. [2021-12-06 18:12:31,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 154 transitions, 1443 flow [2021-12-06 18:12:31,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 154 transitions, 1342 flow, removed 23 selfloop flow, removed 5 redundant places. [2021-12-06 18:12:31,645 INFO L242 Difference]: Finished difference. Result has 155 places, 146 transitions, 1248 flow [2021-12-06 18:12:31,645 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1248, PETRI_PLACES=155, PETRI_TRANSITIONS=146} [2021-12-06 18:12:31,646 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 84 predicate places. [2021-12-06 18:12:31,646 INFO L470 AbstractCegarLoop]: Abstraction has has 155 places, 146 transitions, 1248 flow [2021-12-06 18:12:31,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,646 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:31,646 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] [2021-12-06 18:12:31,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 18:12:31,646 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:12:31,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:31,647 INFO L85 PathProgramCache]: Analyzing trace with hash 41931356, now seen corresponding path program 8 times [2021-12-06 18:12:31,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:31,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845579058] [2021-12-06 18:12:31,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:31,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:31,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:31,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:31,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845579058] [2021-12-06 18:12:31,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845579058] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:31,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:31,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:12:31,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372139930] [2021-12-06 18:12:31,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:31,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:12:31,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:31,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:12:31,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:12:31,701 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-12-06 18:12:31,701 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 146 transitions, 1248 flow. Second operand has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,701 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:31,701 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-12-06 18:12:31,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:31,894 INFO L129 PetriNetUnfolder]: 76/751 cut-off events. [2021-12-06 18:12:31,894 INFO L130 PetriNetUnfolder]: For 2958/2986 co-relation queries the response was YES. [2021-12-06 18:12:31,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2198 conditions, 751 events. 76/751 cut-off events. For 2958/2986 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5591 event pairs, 14 based on Foata normal form. 22/742 useless extension candidates. Maximal degree in co-relation 2134. Up to 90 conditions per place. [2021-12-06 18:12:31,899 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 42 selfloop transitions, 42 changer transitions 0/150 dead transitions. [2021-12-06 18:12:31,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 150 transitions, 1398 flow [2021-12-06 18:12:31,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 18:12:31,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 18:12:31,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 624 transitions. [2021-12-06 18:12:31,901 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8210526315789474 [2021-12-06 18:12:31,901 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 624 transitions. [2021-12-06 18:12:31,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 624 transitions. [2021-12-06 18:12:31,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:31,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 624 transitions. [2021-12-06 18:12:31,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,904 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,905 INFO L186 Difference]: Start difference. First operand has 155 places, 146 transitions, 1248 flow. Second operand 10 states and 624 transitions. [2021-12-06 18:12:31,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 150 transitions, 1398 flow [2021-12-06 18:12:31,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 150 transitions, 1335 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-12-06 18:12:31,917 INFO L242 Difference]: Finished difference. Result has 161 places, 145 transitions, 1257 flow [2021-12-06 18:12:31,917 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=1117, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1257, PETRI_PLACES=161, PETRI_TRANSITIONS=145} [2021-12-06 18:12:31,918 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 90 predicate places. [2021-12-06 18:12:31,918 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 145 transitions, 1257 flow [2021-12-06 18:12:31,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,918 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:31,919 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] [2021-12-06 18:12:31,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 18:12:31,919 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:12:31,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:31,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1908859930, now seen corresponding path program 9 times [2021-12-06 18:12:31,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:31,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659416820] [2021-12-06 18:12:31,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:31,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:31,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:31,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:31,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659416820] [2021-12-06 18:12:31,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659416820] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:31,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:31,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:12:31,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119662970] [2021-12-06 18:12:31,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:31,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:12:31,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:31,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:12:31,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:12:31,970 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-12-06 18:12:31,971 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 145 transitions, 1257 flow. Second operand has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:31,971 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:31,971 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-12-06 18:12:31,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:32,140 INFO L129 PetriNetUnfolder]: 76/750 cut-off events. [2021-12-06 18:12:32,141 INFO L130 PetriNetUnfolder]: For 3170/3200 co-relation queries the response was YES. [2021-12-06 18:12:32,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2245 conditions, 750 events. 76/750 cut-off events. For 3170/3200 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5604 event pairs, 12 based on Foata normal form. 18/740 useless extension candidates. Maximal degree in co-relation 2178. Up to 90 conditions per place. [2021-12-06 18:12:32,146 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 48 selfloop transitions, 44 changer transitions 0/158 dead transitions. [2021-12-06 18:12:32,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 158 transitions, 1526 flow [2021-12-06 18:12:32,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 18:12:32,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 18:12:32,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 628 transitions. [2021-12-06 18:12:32,148 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8263157894736842 [2021-12-06 18:12:32,148 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 628 transitions. [2021-12-06 18:12:32,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 628 transitions. [2021-12-06 18:12:32,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:32,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 628 transitions. [2021-12-06 18:12:32,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 62.8) internal successors, (628), 10 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,153 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,153 INFO L186 Difference]: Start difference. First operand has 161 places, 145 transitions, 1257 flow. Second operand 10 states and 628 transitions. [2021-12-06 18:12:32,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 158 transitions, 1526 flow [2021-12-06 18:12:32,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 158 transitions, 1450 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-12-06 18:12:32,165 INFO L242 Difference]: Finished difference. Result has 167 places, 150 transitions, 1375 flow [2021-12-06 18:12:32,165 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=1183, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1375, PETRI_PLACES=167, PETRI_TRANSITIONS=150} [2021-12-06 18:12:32,166 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 96 predicate places. [2021-12-06 18:12:32,166 INFO L470 AbstractCegarLoop]: Abstraction has has 167 places, 150 transitions, 1375 flow [2021-12-06 18:12:32,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,166 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:32,167 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] [2021-12-06 18:12:32,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 18:12:32,167 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:12:32,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:32,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1275045958, now seen corresponding path program 10 times [2021-12-06 18:12:32,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:32,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683276622] [2021-12-06 18:12:32,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:32,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:32,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:32,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683276622] [2021-12-06 18:12:32,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683276622] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:32,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:32,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:12:32,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097896710] [2021-12-06 18:12:32,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:32,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:12:32,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:32,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:12:32,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:12:32,226 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-12-06 18:12:32,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 150 transitions, 1375 flow. Second operand has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:32,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-12-06 18:12:32,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:32,374 INFO L129 PetriNetUnfolder]: 44/579 cut-off events. [2021-12-06 18:12:32,375 INFO L130 PetriNetUnfolder]: For 2797/2819 co-relation queries the response was YES. [2021-12-06 18:12:32,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1896 conditions, 579 events. 44/579 cut-off events. For 2797/2819 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3958 event pairs, 6 based on Foata normal form. 13/580 useless extension candidates. Maximal degree in co-relation 1826. Up to 70 conditions per place. [2021-12-06 18:12:32,380 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 51 selfloop transitions, 36 changer transitions 0/133 dead transitions. [2021-12-06 18:12:32,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 133 transitions, 1415 flow [2021-12-06 18:12:32,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 18:12:32,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 18:12:32,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 626 transitions. [2021-12-06 18:12:32,382 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8236842105263158 [2021-12-06 18:12:32,382 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 626 transitions. [2021-12-06 18:12:32,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 626 transitions. [2021-12-06 18:12:32,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:32,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 626 transitions. [2021-12-06 18:12:32,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 62.6) internal successors, (626), 10 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,387 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,387 INFO L186 Difference]: Start difference. First operand has 167 places, 150 transitions, 1375 flow. Second operand 10 states and 626 transitions. [2021-12-06 18:12:32,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 133 transitions, 1415 flow [2021-12-06 18:12:32,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 133 transitions, 1270 flow, removed 28 selfloop flow, removed 13 redundant places. [2021-12-06 18:12:32,405 INFO L242 Difference]: Finished difference. Result has 161 places, 127 transitions, 1181 flow [2021-12-06 18:12:32,405 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1181, PETRI_PLACES=161, PETRI_TRANSITIONS=127} [2021-12-06 18:12:32,406 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 90 predicate places. [2021-12-06 18:12:32,406 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 127 transitions, 1181 flow [2021-12-06 18:12:32,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,406 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:12:32,406 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] [2021-12-06 18:12:32,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 18:12:32,407 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:12:32,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:12:32,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1349024591, now seen corresponding path program 1 times [2021-12-06 18:12:32,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:12:32,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990461501] [2021-12-06 18:12:32,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:12:32,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:12:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:12:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:12:32,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:12:32,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990461501] [2021-12-06 18:12:32,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990461501] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:12:32,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:12:32,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:12:32,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321678189] [2021-12-06 18:12:32,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:12:32,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:12:32,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:12:32,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:12:32,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:12:32,485 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 76 [2021-12-06 18:12:32,485 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 127 transitions, 1181 flow. Second operand has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,485 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:12:32,485 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 76 [2021-12-06 18:12:32,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:12:32,551 INFO L129 PetriNetUnfolder]: 23/462 cut-off events. [2021-12-06 18:12:32,551 INFO L130 PetriNetUnfolder]: For 1715/1715 co-relation queries the response was YES. [2021-12-06 18:12:32,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1263 conditions, 462 events. 23/462 cut-off events. For 1715/1715 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2950 event pairs, 0 based on Foata normal form. 0/462 useless extension candidates. Maximal degree in co-relation 1197. Up to 42 conditions per place. [2021-12-06 18:12:32,554 INFO L132 encePairwiseOnDemand]: 71/76 looper letters, 0 selfloop transitions, 0 changer transitions 126/126 dead transitions. [2021-12-06 18:12:32,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 126 transitions, 1199 flow [2021-12-06 18:12:32,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:12:32,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 18:12:32,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 383 transitions. [2021-12-06 18:12:32,556 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8399122807017544 [2021-12-06 18:12:32,556 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 383 transitions. [2021-12-06 18:12:32,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 383 transitions. [2021-12-06 18:12:32,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:12:32,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 383 transitions. [2021-12-06 18:12:32,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 63.833333333333336) internal successors, (383), 6 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,559 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,559 INFO L186 Difference]: Start difference. First operand has 161 places, 127 transitions, 1181 flow. Second operand 6 states and 383 transitions. [2021-12-06 18:12:32,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 126 transitions, 1199 flow [2021-12-06 18:12:32,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 126 transitions, 1144 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-12-06 18:12:32,574 INFO L242 Difference]: Finished difference. Result has 160 places, 0 transitions, 0 flow [2021-12-06 18:12:32,574 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=160, PETRI_TRANSITIONS=0} [2021-12-06 18:12:32,575 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 89 predicate places. [2021-12-06 18:12:32,575 INFO L470 AbstractCegarLoop]: Abstraction has has 160 places, 0 transitions, 0 flow [2021-12-06 18:12:32,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:12:32,577 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2021-12-06 18:12:32,578 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2021-12-06 18:12:32,578 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2021-12-06 18:12:32,578 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 8 remaining) [2021-12-06 18:12:32,578 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2021-12-06 18:12:32,578 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2021-12-06 18:12:32,579 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2021-12-06 18:12:32,579 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2021-12-06 18:12:32,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 18:12:32,583 INFO L732 BasicCegarLoop]: Path program histogram: [10, 1, 1, 1, 1] [2021-12-06 18:12:32,587 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 18:12:32,587 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:12:32,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:12:32 BasicIcfg [2021-12-06 18:12:32,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:12:32,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:12:32,591 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:12:32,591 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:12:32,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:12:28" (3/4) ... [2021-12-06 18:12:32,593 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 18:12:32,597 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-12-06 18:12:32,601 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 18:12:32,602 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-06 18:12:32,602 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 18:12:32,631 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 18:12:32,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:12:32,632 INFO L158 Benchmark]: Toolchain (without parser) took 4613.00ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 82.8MB in the beginning and 123.8MB in the end (delta: -41.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:12:32,632 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:12:32,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.00ms. Allocated memory is still 119.5MB. Free memory was 82.6MB in the beginning and 80.5MB in the end (delta: 2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 18:12:32,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.95ms. Allocated memory is still 119.5MB. Free memory was 80.4MB in the beginning and 77.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:12:32,633 INFO L158 Benchmark]: Boogie Preprocessor took 19.28ms. Allocated memory is still 119.5MB. Free memory was 77.8MB in the beginning and 76.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:12:32,633 INFO L158 Benchmark]: RCFGBuilder took 296.16ms. Allocated memory is still 119.5MB. Free memory was 76.3MB in the beginning and 64.8MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 18:12:32,633 INFO L158 Benchmark]: TraceAbstraction took 3683.40ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 64.2MB in the beginning and 126.9MB in the end (delta: -62.7MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. [2021-12-06 18:12:32,634 INFO L158 Benchmark]: Witness Printer took 40.67ms. Allocated memory is still 157.3MB. Free memory was 126.9MB in the beginning and 123.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 18:12:32,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.00ms. Allocated memory is still 119.5MB. Free memory was 82.6MB in the beginning and 80.5MB in the end (delta: 2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.95ms. Allocated memory is still 119.5MB. Free memory was 80.4MB in the beginning and 77.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.28ms. Allocated memory is still 119.5MB. Free memory was 77.8MB in the beginning and 76.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 296.16ms. Allocated memory is still 119.5MB. Free memory was 76.3MB in the beginning and 64.8MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3683.40ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 64.2MB in the beginning and 126.9MB in the end (delta: -62.7MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. * Witness Printer took 40.67ms. Allocated memory is still 157.3MB. Free memory was 126.9MB in the beginning and 123.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 921]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 921]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 921]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 921]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.6s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 294 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 294 mSDsluCounter, 783 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 523 mSDsCounter, 92 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1107 IncrementalHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 92 mSolverCounterUnsat, 284 mSDtfsCounter, 1107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1375occurred in iteration=12, InterpolantAutomatonStates: 118, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 573 NumberOfCodeBlocks, 573 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 559 ConstructedInterpolants, 0 QuantifiedInterpolants, 1294 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-06 18:12:32,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_517c86b4-ad00-46d1-9078-73ed26826b9a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE