./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_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_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/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_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/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_fa7428e5-9231-4ca7-a984-aec131ea8bae/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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:08:41,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:08:41,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:08:41,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:08:41,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:08:41,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:08:41,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:08:41,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:08:41,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:08:41,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:08:41,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:08:41,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:08:41,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:08:41,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:08:41,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:08:41,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:08:41,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:08:41,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:08:41,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:08:41,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:08:41,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:08:41,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:08:41,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:08:41,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:08:41,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:08:41,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:08:41,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:08:41,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:08:41,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:08:41,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:08:41,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:08:41,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:08:41,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:08:41,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:08:41,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:08:41,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:08:41,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:08:41,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:08:41,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:08:42,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:08:42,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:08:42,001 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 20:08:42,019 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:08:42,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:08:42,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:08:42,019 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:08:42,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:08:42,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:08:42,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:08:42,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:08:42,021 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:08:42,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:08:42,021 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:08:42,021 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 20:08:42,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:08:42,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:08:42,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:08:42,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:08:42,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:08:42,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:08:42,022 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 20:08:42,022 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:08:42,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:08:42,022 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:08:42,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:08:42,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:08:42,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:08:42,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:08:42,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:08:42,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:08:42,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:08:42,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:08:42,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:08:42,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:08:42,024 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:08:42,024 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:08:42,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:08:42,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:08:42,024 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_fa7428e5-9231-4ca7-a984-aec131ea8bae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2021-12-06 20:08:42,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:08:42,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:08:42,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:08:42,231 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:08:42,231 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:08:42,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2021-12-06 20:08:42,276 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa/data/29e008ba7/a2a72b43a65f4543b53a9caf9186a69e/FLAG4fa5c5b78 [2021-12-06 20:08:42,782 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:08:42,783 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2021-12-06 20:08:42,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa/data/29e008ba7/a2a72b43a65f4543b53a9caf9186a69e/FLAG4fa5c5b78 [2021-12-06 20:08:43,306 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa/data/29e008ba7/a2a72b43a65f4543b53a9caf9186a69e [2021-12-06 20:08:43,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:08:43,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:08:43,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:08:43,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:08:43,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:08:43,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:08:43" (1/1) ... [2021-12-06 20:08:43,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c9baa69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43, skipping insertion in model container [2021-12-06 20:08:43,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:08:43" (1/1) ... [2021-12-06 20:08:43,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:08:43,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:08:43,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:08:43,698 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:08:43,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:08:43,791 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:08:43,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43 WrapperNode [2021-12-06 20:08:43,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:08:43,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:08:43,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:08:43,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:08:43,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43" (1/1) ... [2021-12-06 20:08:43,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43" (1/1) ... [2021-12-06 20:08:43,832 INFO L137 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 93 [2021-12-06 20:08:43,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:08:43,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:08:43,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:08:43,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:08:43,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43" (1/1) ... [2021-12-06 20:08:43,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43" (1/1) ... [2021-12-06 20:08:43,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43" (1/1) ... [2021-12-06 20:08:43,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43" (1/1) ... [2021-12-06 20:08:43,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43" (1/1) ... [2021-12-06 20:08:43,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43" (1/1) ... [2021-12-06 20:08:43,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43" (1/1) ... [2021-12-06 20:08:43,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:08:43,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:08:43,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:08:43,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:08:43,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43" (1/1) ... [2021-12-06 20:08:43,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:08:43,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:08:43,895 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:08:43,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:08:43,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:08:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:08:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:08:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:08:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 20:08:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 20:08:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 20:08:43,934 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 20:08:43,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:08:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:08:43,936 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 20:08:44,035 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:08:44,037 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:08:44,215 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:08:44,221 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:08:44,222 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 20:08:44,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:08:44 BoogieIcfgContainer [2021-12-06 20:08:44,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:08:44,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:08:44,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:08:44,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:08:44,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:08:43" (1/3) ... [2021-12-06 20:08:44,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ef2873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:08:44, skipping insertion in model container [2021-12-06 20:08:44,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:08:43" (2/3) ... [2021-12-06 20:08:44,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ef2873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:08:44, skipping insertion in model container [2021-12-06 20:08:44,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:08:44" (3/3) ... [2021-12-06 20:08:44,229 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2021-12-06 20:08:44,233 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 20:08:44,233 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:08:44,233 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-12-06 20:08:44,233 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 20:08:44,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,260 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,260 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,260 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,260 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,260 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,260 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,260 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,261 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,261 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,261 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,261 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,261 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,261 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,261 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,262 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,262 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,262 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,262 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,262 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,263 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,264 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,267 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,279 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,279 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,279 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,279 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,282 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,283 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,283 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,283 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,283 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,283 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,283 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 20:08:44,288 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-06 20:08:44,328 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:08:44,333 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 20:08:44,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-12-06 20:08:44,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 115 transitions, 235 flow [2021-12-06 20:08:44,376 INFO L129 PetriNetUnfolder]: 0/114 cut-off events. [2021-12-06 20:08:44,376 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 20:08:44,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 114 events. 0/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 82 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-12-06 20:08:44,395 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 115 transitions, 235 flow [2021-12-06 20:08:44,399 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 114 transitions, 231 flow [2021-12-06 20:08:44,403 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-12-06 20:08:44,403 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 20:08:44,403 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:44,404 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:44,404 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:44,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:44,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1485637970, now seen corresponding path program 1 times [2021-12-06 20:08:44,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:44,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897975262] [2021-12-06 20:08:44,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:44,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:44,554 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 20:08:44,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:44,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897975262] [2021-12-06 20:08:44,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897975262] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:44,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:44,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:08:44,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391213290] [2021-12-06 20:08:44,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:44,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:08:44,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:44,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:08:44,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:08:44,588 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 115 [2021-12-06 20:08:44,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 114 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 20:08:44,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:44,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 115 [2021-12-06 20:08:44,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:44,677 INFO L129 PetriNetUnfolder]: 9/263 cut-off events. [2021-12-06 20:08:44,677 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 20:08:44,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 263 events. 9/263 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 936 event pairs, 9 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 247. Up to 32 conditions per place. [2021-12-06 20:08:44,681 INFO L132 encePairwiseOnDemand]: 112/115 looper letters, 13 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2021-12-06 20:08:44,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 113 transitions, 259 flow [2021-12-06 20:08:44,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:08:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 20:08:44,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2021-12-06 20:08:44,695 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9072463768115943 [2021-12-06 20:08:44,696 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2021-12-06 20:08:44,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2021-12-06 20:08:44,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:44,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2021-12-06 20:08:44,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 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 20:08:44,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 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 20:08:44,710 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 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 20:08:44,711 INFO L186 Difference]: Start difference. First operand has 118 places, 114 transitions, 231 flow. Second operand 3 states and 313 transitions. [2021-12-06 20:08:44,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 113 transitions, 259 flow [2021-12-06 20:08:44,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 20:08:44,722 INFO L242 Difference]: Finished difference. Result has 118 places, 113 transitions, 232 flow [2021-12-06 20:08:44,724 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2021-12-06 20:08:44,728 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2021-12-06 20:08:44,728 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 232 flow [2021-12-06 20:08:44,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 20:08:44,729 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:44,729 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:44,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:08:44,729 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:44,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:44,730 INFO L85 PathProgramCache]: Analyzing trace with hash -842156130, now seen corresponding path program 1 times [2021-12-06 20:08:44,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:44,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293358029] [2021-12-06 20:08:44,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:44,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:44,781 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 20:08:44,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:44,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293358029] [2021-12-06 20:08:44,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293358029] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:44,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:44,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:08:44,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384496101] [2021-12-06 20:08:44,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:44,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:08:44,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:44,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:08:44,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:08:44,786 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 115 [2021-12-06 20:08:44,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 20:08:44,787 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:44,787 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 115 [2021-12-06 20:08:44,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:44,832 INFO L129 PetriNetUnfolder]: 4/216 cut-off events. [2021-12-06 20:08:44,832 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 20:08:44,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 216 events. 4/216 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 633 event pairs, 4 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 216. Up to 15 conditions per place. [2021-12-06 20:08:44,834 INFO L132 encePairwiseOnDemand]: 111/115 looper letters, 8 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2021-12-06 20:08:44,834 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 110 transitions, 244 flow [2021-12-06 20:08:44,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:08:44,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 20:08:44,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2021-12-06 20:08:44,838 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9217391304347826 [2021-12-06 20:08:44,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 318 transitions. [2021-12-06 20:08:44,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 318 transitions. [2021-12-06 20:08:44,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:44,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 318 transitions. [2021-12-06 20:08:44,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 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 20:08:44,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 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 20:08:44,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 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 20:08:44,843 INFO L186 Difference]: Start difference. First operand has 118 places, 113 transitions, 232 flow. Second operand 3 states and 318 transitions. [2021-12-06 20:08:44,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 110 transitions, 244 flow [2021-12-06 20:08:44,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 110 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 20:08:44,847 INFO L242 Difference]: Finished difference. Result has 115 places, 110 transitions, 224 flow [2021-12-06 20:08:44,848 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2021-12-06 20:08:44,849 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, -3 predicate places. [2021-12-06 20:08:44,849 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 224 flow [2021-12-06 20:08:44,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 20:08:44,849 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:44,849 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] [2021-12-06 20:08:44,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:08:44,850 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:44,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:44,851 INFO L85 PathProgramCache]: Analyzing trace with hash 838099336, now seen corresponding path program 1 times [2021-12-06 20:08:44,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:44,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813919124] [2021-12-06 20:08:44,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:44,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:44,987 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 20:08:44,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:44,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813919124] [2021-12-06 20:08:44,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813919124] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:44,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:44,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:44,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212002874] [2021-12-06 20:08:44,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:44,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:08:44,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:44,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:08:44,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:08:44,989 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2021-12-06 20:08:44,990 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 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 20:08:44,990 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:44,990 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2021-12-06 20:08:44,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:45,095 INFO L129 PetriNetUnfolder]: 144/632 cut-off events. [2021-12-06 20:08:45,095 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 20:08:45,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 962 conditions, 632 events. 144/632 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3341 event pairs, 144 based on Foata normal form. 0/576 useless extension candidates. Maximal degree in co-relation 940. Up to 320 conditions per place. [2021-12-06 20:08:45,101 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 31 selfloop transitions, 5 changer transitions 0/109 dead transitions. [2021-12-06 20:08:45,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 109 transitions, 294 flow [2021-12-06 20:08:45,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:45,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:08:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 505 transitions. [2021-12-06 20:08:45,103 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7318840579710145 [2021-12-06 20:08:45,103 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 505 transitions. [2021-12-06 20:08:45,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 505 transitions. [2021-12-06 20:08:45,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:45,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 505 transitions. [2021-12-06 20:08:45,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 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 20:08:45,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:45,109 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:45,109 INFO L186 Difference]: Start difference. First operand has 115 places, 110 transitions, 224 flow. Second operand 6 states and 505 transitions. [2021-12-06 20:08:45,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 109 transitions, 294 flow [2021-12-06 20:08:45,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 109 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 20:08:45,113 INFO L242 Difference]: Finished difference. Result has 118 places, 109 transitions, 231 flow [2021-12-06 20:08:45,113 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=231, PETRI_PLACES=118, PETRI_TRANSITIONS=109} [2021-12-06 20:08:45,114 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2021-12-06 20:08:45,114 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 109 transitions, 231 flow [2021-12-06 20:08:45,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 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 20:08:45,115 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:45,115 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:45,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 20:08:45,115 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:45,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:45,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1006176948, now seen corresponding path program 1 times [2021-12-06 20:08:45,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:45,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264759096] [2021-12-06 20:08:45,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:45,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:45,239 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 20:08:45,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:45,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264759096] [2021-12-06 20:08:45,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264759096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:45,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:45,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:45,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760119130] [2021-12-06 20:08:45,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:45,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:08:45,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:45,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:08:45,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:08:45,243 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2021-12-06 20:08:45,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 109 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 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 20:08:45,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:45,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2021-12-06 20:08:45,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:45,470 INFO L129 PetriNetUnfolder]: 239/881 cut-off events. [2021-12-06 20:08:45,471 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 20:08:45,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1412 conditions, 881 events. 239/881 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5113 event pairs, 134 based on Foata normal form. 0/811 useless extension candidates. Maximal degree in co-relation 1390. Up to 389 conditions per place. [2021-12-06 20:08:45,475 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 68 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2021-12-06 20:08:45,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 163 transitions, 519 flow [2021-12-06 20:08:45,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:45,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:08:45,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2021-12-06 20:08:45,478 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8101449275362319 [2021-12-06 20:08:45,478 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 559 transitions. [2021-12-06 20:08:45,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 559 transitions. [2021-12-06 20:08:45,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:45,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 559 transitions. [2021-12-06 20:08:45,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 0 states have call successors, (0), 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 20:08:45,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:45,482 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:45,482 INFO L186 Difference]: Start difference. First operand has 118 places, 109 transitions, 231 flow. Second operand 6 states and 559 transitions. [2021-12-06 20:08:45,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 163 transitions, 519 flow [2021-12-06 20:08:45,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 163 transitions, 509 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-12-06 20:08:45,485 INFO L242 Difference]: Finished difference. Result has 123 places, 130 transitions, 371 flow [2021-12-06 20:08:45,486 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=371, PETRI_PLACES=123, PETRI_TRANSITIONS=130} [2021-12-06 20:08:45,486 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2021-12-06 20:08:45,486 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 130 transitions, 371 flow [2021-12-06 20:08:45,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 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 20:08:45,487 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:45,487 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:45,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 20:08:45,487 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:45,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:45,488 INFO L85 PathProgramCache]: Analyzing trace with hash 72490025, now seen corresponding path program 1 times [2021-12-06 20:08:45,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:45,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247432540] [2021-12-06 20:08:45,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:45,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:45,573 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 20:08:45,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:45,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247432540] [2021-12-06 20:08:45,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247432540] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:45,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:45,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:45,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110435434] [2021-12-06 20:08:45,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:45,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:08:45,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:45,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:08:45,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:08:45,576 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2021-12-06 20:08:45,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 130 transitions, 371 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 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 20:08:45,578 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:45,578 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2021-12-06 20:08:45,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:45,846 INFO L129 PetriNetUnfolder]: 258/942 cut-off events. [2021-12-06 20:08:45,846 INFO L130 PetriNetUnfolder]: For 283/291 co-relation queries the response was YES. [2021-12-06 20:08:45,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1854 conditions, 942 events. 258/942 cut-off events. For 283/291 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5619 event pairs, 106 based on Foata normal form. 0/885 useless extension candidates. Maximal degree in co-relation 1828. Up to 444 conditions per place. [2021-12-06 20:08:45,854 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 81 selfloop transitions, 26 changer transitions 0/180 dead transitions. [2021-12-06 20:08:45,854 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 180 transitions, 775 flow [2021-12-06 20:08:45,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:45,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:08:45,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2021-12-06 20:08:45,856 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8043478260869565 [2021-12-06 20:08:45,856 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2021-12-06 20:08:45,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2021-12-06 20:08:45,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:45,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2021-12-06 20:08:45,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 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 20:08:45,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:45,861 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:45,862 INFO L186 Difference]: Start difference. First operand has 123 places, 130 transitions, 371 flow. Second operand 6 states and 555 transitions. [2021-12-06 20:08:45,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 180 transitions, 775 flow [2021-12-06 20:08:45,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 180 transitions, 775 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 20:08:45,869 INFO L242 Difference]: Finished difference. Result has 133 places, 151 transitions, 555 flow [2021-12-06 20:08:45,870 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=555, PETRI_PLACES=133, PETRI_TRANSITIONS=151} [2021-12-06 20:08:45,871 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 15 predicate places. [2021-12-06 20:08:45,871 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 151 transitions, 555 flow [2021-12-06 20:08:45,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 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 20:08:45,871 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:45,872 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:45,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 20:08:45,872 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:45,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:45,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1581779769, now seen corresponding path program 1 times [2021-12-06 20:08:45,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:45,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349949491] [2021-12-06 20:08:45,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:45,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:45,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:08:45,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:45,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349949491] [2021-12-06 20:08:45,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349949491] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:45,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:45,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:45,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646600298] [2021-12-06 20:08:45,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:45,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:08:45,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:45,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:08:45,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:08:45,974 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2021-12-06 20:08:45,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 151 transitions, 555 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 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 20:08:45,975 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:45,975 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2021-12-06 20:08:45,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:46,231 INFO L129 PetriNetUnfolder]: 350/1246 cut-off events. [2021-12-06 20:08:46,232 INFO L130 PetriNetUnfolder]: For 650/663 co-relation queries the response was YES. [2021-12-06 20:08:46,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2801 conditions, 1246 events. 350/1246 cut-off events. For 650/663 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8212 event pairs, 132 based on Foata normal form. 4/1188 useless extension candidates. Maximal degree in co-relation 2770. Up to 644 conditions per place. [2021-12-06 20:08:46,238 INFO L132 encePairwiseOnDemand]: 100/115 looper letters, 87 selfloop transitions, 53 changer transitions 4/215 dead transitions. [2021-12-06 20:08:46,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 215 transitions, 1131 flow [2021-12-06 20:08:46,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:46,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:08:46,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2021-12-06 20:08:46,240 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7942028985507247 [2021-12-06 20:08:46,240 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2021-12-06 20:08:46,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2021-12-06 20:08:46,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:46,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2021-12-06 20:08:46,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:46,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:46,244 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:46,244 INFO L186 Difference]: Start difference. First operand has 133 places, 151 transitions, 555 flow. Second operand 6 states and 548 transitions. [2021-12-06 20:08:46,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 215 transitions, 1131 flow [2021-12-06 20:08:46,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 215 transitions, 1131 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 20:08:46,252 INFO L242 Difference]: Finished difference. Result has 143 places, 198 transitions, 1037 flow [2021-12-06 20:08:46,253 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1037, PETRI_PLACES=143, PETRI_TRANSITIONS=198} [2021-12-06 20:08:46,253 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2021-12-06 20:08:46,254 INFO L470 AbstractCegarLoop]: Abstraction has has 143 places, 198 transitions, 1037 flow [2021-12-06 20:08:46,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 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 20:08:46,254 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:46,254 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:46,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 20:08:46,255 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:46,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:46,255 INFO L85 PathProgramCache]: Analyzing trace with hash 138758537, now seen corresponding path program 1 times [2021-12-06 20:08:46,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:46,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218378948] [2021-12-06 20:08:46,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:46,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:46,351 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 20:08:46,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:46,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218378948] [2021-12-06 20:08:46,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218378948] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:46,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:46,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:08:46,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448747694] [2021-12-06 20:08:46,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:46,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:08:46,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:46,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:08:46,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:08:46,353 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2021-12-06 20:08:46,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 198 transitions, 1037 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 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 20:08:46,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:46,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2021-12-06 20:08:46,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:46,682 INFO L129 PetriNetUnfolder]: 442/1426 cut-off events. [2021-12-06 20:08:46,682 INFO L130 PetriNetUnfolder]: For 1586/1596 co-relation queries the response was YES. [2021-12-06 20:08:46,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4038 conditions, 1426 events. 442/1426 cut-off events. For 1586/1596 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 9340 event pairs, 130 based on Foata normal form. 0/1394 useless extension candidates. Maximal degree in co-relation 4002. Up to 796 conditions per place. [2021-12-06 20:08:46,691 INFO L132 encePairwiseOnDemand]: 100/115 looper letters, 124 selfloop transitions, 58 changer transitions 15/269 dead transitions. [2021-12-06 20:08:46,691 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 269 transitions, 1849 flow [2021-12-06 20:08:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:08:46,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 20:08:46,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2021-12-06 20:08:46,693 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7942028985507247 [2021-12-06 20:08:46,693 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2021-12-06 20:08:46,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2021-12-06 20:08:46,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:46,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2021-12-06 20:08:46,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:46,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:46,697 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:46,697 INFO L186 Difference]: Start difference. First operand has 143 places, 198 transitions, 1037 flow. Second operand 6 states and 548 transitions. [2021-12-06 20:08:46,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 269 transitions, 1849 flow [2021-12-06 20:08:46,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 269 transitions, 1785 flow, removed 32 selfloop flow, removed 0 redundant places. [2021-12-06 20:08:46,712 INFO L242 Difference]: Finished difference. Result has 153 places, 242 transitions, 1529 flow [2021-12-06 20:08:46,713 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=979, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1529, PETRI_PLACES=153, PETRI_TRANSITIONS=242} [2021-12-06 20:08:46,713 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 35 predicate places. [2021-12-06 20:08:46,713 INFO L470 AbstractCegarLoop]: Abstraction has has 153 places, 242 transitions, 1529 flow [2021-12-06 20:08:46,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 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 20:08:46,714 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:46,714 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:46,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 20:08:46,714 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:46,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:46,715 INFO L85 PathProgramCache]: Analyzing trace with hash 404626218, now seen corresponding path program 1 times [2021-12-06 20:08:46,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:46,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052944078] [2021-12-06 20:08:46,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:46,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:47,086 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 20:08:47,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:47,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052944078] [2021-12-06 20:08:47,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052944078] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:47,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:47,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:08:47,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555408927] [2021-12-06 20:08:47,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:47,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:08:47,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:47,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:08:47,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:08:47,089 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:08:47,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 242 transitions, 1529 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:47,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:47,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:08:47,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:47,920 INFO L129 PetriNetUnfolder]: 637/1906 cut-off events. [2021-12-06 20:08:47,920 INFO L130 PetriNetUnfolder]: For 3322/3322 co-relation queries the response was YES. [2021-12-06 20:08:47,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5991 conditions, 1906 events. 637/1906 cut-off events. For 3322/3322 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 12705 event pairs, 47 based on Foata normal form. 13/1909 useless extension candidates. Maximal degree in co-relation 5945. Up to 936 conditions per place. [2021-12-06 20:08:47,933 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 253 selfloop transitions, 9 changer transitions 66/391 dead transitions. [2021-12-06 20:08:47,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 391 transitions, 3097 flow [2021-12-06 20:08:47,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:08:47,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:08:47,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 917 transitions. [2021-12-06 20:08:47,936 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.724901185770751 [2021-12-06 20:08:47,936 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 917 transitions. [2021-12-06 20:08:47,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 917 transitions. [2021-12-06 20:08:47,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:47,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 917 transitions. [2021-12-06 20:08:47,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.36363636363636) internal successors, (917), 11 states have internal predecessors, (917), 0 states have call successors, (0), 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 20:08:47,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:47,941 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:47,941 INFO L186 Difference]: Start difference. First operand has 153 places, 242 transitions, 1529 flow. Second operand 11 states and 917 transitions. [2021-12-06 20:08:47,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 391 transitions, 3097 flow [2021-12-06 20:08:47,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 391 transitions, 3029 flow, removed 34 selfloop flow, removed 0 redundant places. [2021-12-06 20:08:47,962 INFO L242 Difference]: Finished difference. Result has 167 places, 242 transitions, 1490 flow [2021-12-06 20:08:47,963 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1461, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1490, PETRI_PLACES=167, PETRI_TRANSITIONS=242} [2021-12-06 20:08:47,963 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 49 predicate places. [2021-12-06 20:08:47,963 INFO L470 AbstractCegarLoop]: Abstraction has has 167 places, 242 transitions, 1490 flow [2021-12-06 20:08:47,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:47,964 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:47,964 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:47,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 20:08:47,964 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:47,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:47,964 INFO L85 PathProgramCache]: Analyzing trace with hash 419805406, now seen corresponding path program 2 times [2021-12-06 20:08:47,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:47,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474821764] [2021-12-06 20:08:47,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:47,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:48,172 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 20:08:48,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:48,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474821764] [2021-12-06 20:08:48,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474821764] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:48,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:48,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:08:48,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623515726] [2021-12-06 20:08:48,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:48,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:08:48,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:48,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:08:48,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:08:48,175 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:08:48,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 242 transitions, 1490 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:48,176 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:48,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:08:48,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:48,833 INFO L129 PetriNetUnfolder]: 613/1834 cut-off events. [2021-12-06 20:08:48,834 INFO L130 PetriNetUnfolder]: For 3308/3309 co-relation queries the response was YES. [2021-12-06 20:08:48,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6150 conditions, 1834 events. 613/1834 cut-off events. For 3308/3309 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 11892 event pairs, 60 based on Foata normal form. 14/1838 useless extension candidates. Maximal degree in co-relation 6096. Up to 936 conditions per place. [2021-12-06 20:08:48,851 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 240 selfloop transitions, 9 changer transitions 75/387 dead transitions. [2021-12-06 20:08:48,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 387 transitions, 3094 flow [2021-12-06 20:08:48,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:08:48,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:08:48,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 913 transitions. [2021-12-06 20:08:48,855 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7217391304347827 [2021-12-06 20:08:48,855 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 913 transitions. [2021-12-06 20:08:48,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 913 transitions. [2021-12-06 20:08:48,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:48,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 913 transitions. [2021-12-06 20:08:48,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 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 20:08:48,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:48,863 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:48,863 INFO L186 Difference]: Start difference. First operand has 167 places, 242 transitions, 1490 flow. Second operand 11 states and 913 transitions. [2021-12-06 20:08:48,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 387 transitions, 3094 flow [2021-12-06 20:08:48,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 387 transitions, 3037 flow, removed 3 selfloop flow, removed 9 redundant places. [2021-12-06 20:08:48,894 INFO L242 Difference]: Finished difference. Result has 169 places, 242 transitions, 1498 flow [2021-12-06 20:08:48,895 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1469, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1498, PETRI_PLACES=169, PETRI_TRANSITIONS=242} [2021-12-06 20:08:48,895 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 51 predicate places. [2021-12-06 20:08:48,896 INFO L470 AbstractCegarLoop]: Abstraction has has 169 places, 242 transitions, 1498 flow [2021-12-06 20:08:48,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:48,896 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:48,896 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:48,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 20:08:48,897 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:48,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:48,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1125267259, now seen corresponding path program 1 times [2021-12-06 20:08:48,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:48,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113514960] [2021-12-06 20:08:48,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:48,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:49,028 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 20:08:49,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:49,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113514960] [2021-12-06 20:08:49,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113514960] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:49,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:49,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:08:49,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650455396] [2021-12-06 20:08:49,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:49,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:08:49,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:49,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:08:49,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:08:49,030 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:08:49,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 242 transitions, 1498 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:49,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:49,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:08:49,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:49,762 INFO L129 PetriNetUnfolder]: 1077/3291 cut-off events. [2021-12-06 20:08:49,762 INFO L130 PetriNetUnfolder]: For 6125/6130 co-relation queries the response was YES. [2021-12-06 20:08:49,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11117 conditions, 3291 events. 1077/3291 cut-off events. For 6125/6130 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 25656 event pairs, 153 based on Foata normal form. 16/3286 useless extension candidates. Maximal degree in co-relation 11062. Up to 1063 conditions per place. [2021-12-06 20:08:49,790 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 403 selfloop transitions, 10 changer transitions 58/534 dead transitions. [2021-12-06 20:08:49,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 534 transitions, 4599 flow [2021-12-06 20:08:49,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:08:49,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:08:49,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 929 transitions. [2021-12-06 20:08:49,793 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7343873517786561 [2021-12-06 20:08:49,794 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 929 transitions. [2021-12-06 20:08:49,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 929 transitions. [2021-12-06 20:08:49,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:49,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 929 transitions. [2021-12-06 20:08:49,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.45454545454545) internal successors, (929), 11 states have internal predecessors, (929), 0 states have call successors, (0), 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 20:08:49,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:49,799 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:49,799 INFO L186 Difference]: Start difference. First operand has 169 places, 242 transitions, 1498 flow. Second operand 11 states and 929 transitions. [2021-12-06 20:08:49,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 534 transitions, 4599 flow [2021-12-06 20:08:49,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 534 transitions, 4541 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-12-06 20:08:49,831 INFO L242 Difference]: Finished difference. Result has 172 places, 246 transitions, 1540 flow [2021-12-06 20:08:49,832 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1477, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1540, PETRI_PLACES=172, PETRI_TRANSITIONS=246} [2021-12-06 20:08:49,833 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 54 predicate places. [2021-12-06 20:08:49,833 INFO L470 AbstractCegarLoop]: Abstraction has has 172 places, 246 transitions, 1540 flow [2021-12-06 20:08:49,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:49,833 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:49,833 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:49,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 20:08:49,834 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:49,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:49,834 INFO L85 PathProgramCache]: Analyzing trace with hash 616115588, now seen corresponding path program 3 times [2021-12-06 20:08:49,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:49,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824375233] [2021-12-06 20:08:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:49,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:50,027 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 20:08:50,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:50,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824375233] [2021-12-06 20:08:50,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824375233] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:50,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:50,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:08:50,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33212271] [2021-12-06 20:08:50,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:50,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:08:50,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:50,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:08:50,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:08:50,031 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:08:50,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 246 transitions, 1540 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:50,032 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:50,032 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:08:50,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:51,063 INFO L129 PetriNetUnfolder]: 1569/4685 cut-off events. [2021-12-06 20:08:51,064 INFO L130 PetriNetUnfolder]: For 9875/9896 co-relation queries the response was YES. [2021-12-06 20:08:51,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16255 conditions, 4685 events. 1569/4685 cut-off events. For 9875/9896 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 39939 event pairs, 227 based on Foata normal form. 20/4674 useless extension candidates. Maximal degree in co-relation 16198. Up to 2028 conditions per place. [2021-12-06 20:08:51,095 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 407 selfloop transitions, 11 changer transitions 59/540 dead transitions. [2021-12-06 20:08:51,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 540 transitions, 4682 flow [2021-12-06 20:08:51,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:08:51,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:08:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 929 transitions. [2021-12-06 20:08:51,098 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7343873517786561 [2021-12-06 20:08:51,098 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 929 transitions. [2021-12-06 20:08:51,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 929 transitions. [2021-12-06 20:08:51,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:51,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 929 transitions. [2021-12-06 20:08:51,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.45454545454545) internal successors, (929), 11 states have internal predecessors, (929), 0 states have call successors, (0), 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 20:08:51,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:51,102 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:51,102 INFO L186 Difference]: Start difference. First operand has 172 places, 246 transitions, 1540 flow. Second operand 11 states and 929 transitions. [2021-12-06 20:08:51,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 540 transitions, 4682 flow [2021-12-06 20:08:51,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 540 transitions, 4643 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-12-06 20:08:51,145 INFO L242 Difference]: Finished difference. Result has 178 places, 250 transitions, 1594 flow [2021-12-06 20:08:51,146 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1525, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1594, PETRI_PLACES=178, PETRI_TRANSITIONS=250} [2021-12-06 20:08:51,146 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 60 predicate places. [2021-12-06 20:08:51,146 INFO L470 AbstractCegarLoop]: Abstraction has has 178 places, 250 transitions, 1594 flow [2021-12-06 20:08:51,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:51,147 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:51,147 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:51,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 20:08:51,147 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:51,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:51,148 INFO L85 PathProgramCache]: Analyzing trace with hash 338218795, now seen corresponding path program 2 times [2021-12-06 20:08:51,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:51,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512866395] [2021-12-06 20:08:51,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:51,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:51,343 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 20:08:51,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:51,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512866395] [2021-12-06 20:08:51,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512866395] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:51,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:51,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:08:51,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932389782] [2021-12-06 20:08:51,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:51,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:08:51,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:51,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:08:51,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:08:51,346 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:08:51,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 250 transitions, 1594 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:51,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:51,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:08:51,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:52,580 INFO L129 PetriNetUnfolder]: 2075/6373 cut-off events. [2021-12-06 20:08:52,581 INFO L130 PetriNetUnfolder]: For 14250/14274 co-relation queries the response was YES. [2021-12-06 20:08:52,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22060 conditions, 6373 events. 2075/6373 cut-off events. For 14250/14274 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 58588 event pairs, 522 based on Foata normal form. 19/6348 useless extension candidates. Maximal degree in co-relation 22000. Up to 2076 conditions per place. [2021-12-06 20:08:52,630 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 556 selfloop transitions, 12 changer transitions 59/690 dead transitions. [2021-12-06 20:08:52,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 690 transitions, 6240 flow [2021-12-06 20:08:52,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:08:52,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:08:52,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2021-12-06 20:08:52,634 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7494071146245059 [2021-12-06 20:08:52,634 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2021-12-06 20:08:52,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2021-12-06 20:08:52,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:52,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2021-12-06 20:08:52,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.18181818181819) internal successors, (948), 11 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:52,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:52,639 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:52,640 INFO L186 Difference]: Start difference. First operand has 178 places, 250 transitions, 1594 flow. Second operand 11 states and 948 transitions. [2021-12-06 20:08:52,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 690 transitions, 6240 flow [2021-12-06 20:08:52,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 690 transitions, 6195 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-12-06 20:08:52,713 INFO L242 Difference]: Finished difference. Result has 185 places, 255 transitions, 1662 flow [2021-12-06 20:08:52,714 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1573, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1662, PETRI_PLACES=185, PETRI_TRANSITIONS=255} [2021-12-06 20:08:52,714 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 67 predicate places. [2021-12-06 20:08:52,714 INFO L470 AbstractCegarLoop]: Abstraction has has 185 places, 255 transitions, 1662 flow [2021-12-06 20:08:52,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:52,715 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:52,715 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:52,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 20:08:52,716 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:52,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:52,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1567739230, now seen corresponding path program 4 times [2021-12-06 20:08:52,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:52,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597634055] [2021-12-06 20:08:52,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:52,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:52,968 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 20:08:52,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:52,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597634055] [2021-12-06 20:08:52,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597634055] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:52,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:52,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:08:52,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255547972] [2021-12-06 20:08:52,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:52,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:08:52,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:52,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:08:52,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:08:52,972 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:08:52,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 255 transitions, 1662 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:52,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:52,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:08:52,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:54,449 INFO L129 PetriNetUnfolder]: 2582/7868 cut-off events. [2021-12-06 20:08:54,449 INFO L130 PetriNetUnfolder]: For 18952/18997 co-relation queries the response was YES. [2021-12-06 20:08:54,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27755 conditions, 7868 events. 2582/7868 cut-off events. For 18952/18997 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 75482 event pairs, 723 based on Foata normal form. 18/7832 useless extension candidates. Maximal degree in co-relation 27691. Up to 3085 conditions per place. [2021-12-06 20:08:54,493 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 561 selfloop transitions, 13 changer transitions 60/697 dead transitions. [2021-12-06 20:08:54,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 697 transitions, 6365 flow [2021-12-06 20:08:54,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:08:54,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:08:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2021-12-06 20:08:54,496 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7494071146245059 [2021-12-06 20:08:54,496 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2021-12-06 20:08:54,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2021-12-06 20:08:54,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:54,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2021-12-06 20:08:54,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.18181818181819) internal successors, (948), 11 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:54,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:54,501 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:54,501 INFO L186 Difference]: Start difference. First operand has 185 places, 255 transitions, 1662 flow. Second operand 11 states and 948 transitions. [2021-12-06 20:08:54,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 697 transitions, 6365 flow [2021-12-06 20:08:54,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 697 transitions, 6325 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-12-06 20:08:54,580 INFO L242 Difference]: Finished difference. Result has 193 places, 260 transitions, 1732 flow [2021-12-06 20:08:54,580 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1637, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1732, PETRI_PLACES=193, PETRI_TRANSITIONS=260} [2021-12-06 20:08:54,580 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 75 predicate places. [2021-12-06 20:08:54,581 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 260 transitions, 1732 flow [2021-12-06 20:08:54,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:54,581 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:54,581 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:54,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 20:08:54,581 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:54,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:54,582 INFO L85 PathProgramCache]: Analyzing trace with hash -977437929, now seen corresponding path program 3 times [2021-12-06 20:08:54,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:54,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965093677] [2021-12-06 20:08:54,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:54,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:54,820 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 20:08:54,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:54,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965093677] [2021-12-06 20:08:54,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965093677] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:54,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:54,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:08:54,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613804411] [2021-12-06 20:08:54,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:54,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:08:54,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:54,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:08:54,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:08:54,823 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:08:54,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 260 transitions, 1732 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:54,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:54,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:08:54,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:56,543 INFO L129 PetriNetUnfolder]: 3120/9604 cut-off events. [2021-12-06 20:08:56,543 INFO L130 PetriNetUnfolder]: For 24472/24523 co-relation queries the response was YES. [2021-12-06 20:08:56,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33926 conditions, 9604 events. 3120/9604 cut-off events. For 24472/24523 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 96035 event pairs, 1089 based on Foata normal form. 21/9560 useless extension candidates. Maximal degree in co-relation 33858. Up to 3223 conditions per place. [2021-12-06 20:08:56,600 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 565 selfloop transitions, 14 changer transitions 58/700 dead transitions. [2021-12-06 20:08:56,600 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 700 transitions, 6437 flow [2021-12-06 20:08:56,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:08:56,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:08:56,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 950 transitions. [2021-12-06 20:08:56,603 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7509881422924901 [2021-12-06 20:08:56,603 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 950 transitions. [2021-12-06 20:08:56,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 950 transitions. [2021-12-06 20:08:56,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:56,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 950 transitions. [2021-12-06 20:08:56,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.36363636363636) internal successors, (950), 11 states have internal predecessors, (950), 0 states have call successors, (0), 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 20:08:56,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:56,607 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:56,607 INFO L186 Difference]: Start difference. First operand has 193 places, 260 transitions, 1732 flow. Second operand 11 states and 950 transitions. [2021-12-06 20:08:56,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 700 transitions, 6437 flow [2021-12-06 20:08:56,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 700 transitions, 6395 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-12-06 20:08:56,734 INFO L242 Difference]: Finished difference. Result has 202 places, 266 transitions, 1824 flow [2021-12-06 20:08:56,734 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1701, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1824, PETRI_PLACES=202, PETRI_TRANSITIONS=266} [2021-12-06 20:08:56,735 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 84 predicate places. [2021-12-06 20:08:56,735 INFO L470 AbstractCegarLoop]: Abstraction has has 202 places, 266 transitions, 1824 flow [2021-12-06 20:08:56,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:56,735 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:56,735 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:56,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 20:08:56,736 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:56,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:56,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1713003958, now seen corresponding path program 5 times [2021-12-06 20:08:56,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:56,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811600161] [2021-12-06 20:08:56,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:56,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:56,840 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 20:08:56,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:56,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811600161] [2021-12-06 20:08:56,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811600161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:56,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:56,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:08:56,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747888285] [2021-12-06 20:08:56,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:56,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:08:56,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:56,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:08:56,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:08:56,843 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:08:56,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 266 transitions, 1824 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:56,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:56,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:08:56,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:08:58,476 INFO L129 PetriNetUnfolder]: 3109/9544 cut-off events. [2021-12-06 20:08:58,477 INFO L130 PetriNetUnfolder]: For 25323/25387 co-relation queries the response was YES. [2021-12-06 20:08:58,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34058 conditions, 9544 events. 3109/9544 cut-off events. For 25323/25387 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 95536 event pairs, 810 based on Foata normal form. 30/9508 useless extension candidates. Maximal degree in co-relation 33985. Up to 3210 conditions per place. [2021-12-06 20:08:58,549 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 421 selfloop transitions, 19 changer transitions 60/563 dead transitions. [2021-12-06 20:08:58,549 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 563 transitions, 5109 flow [2021-12-06 20:08:58,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:08:58,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:08:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 930 transitions. [2021-12-06 20:08:58,551 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7351778656126482 [2021-12-06 20:08:58,551 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 930 transitions. [2021-12-06 20:08:58,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 930 transitions. [2021-12-06 20:08:58,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:08:58,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 930 transitions. [2021-12-06 20:08:58,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.54545454545455) internal successors, (930), 11 states have internal predecessors, (930), 0 states have call successors, (0), 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 20:08:58,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:58,555 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:08:58,555 INFO L186 Difference]: Start difference. First operand has 202 places, 266 transitions, 1824 flow. Second operand 11 states and 930 transitions. [2021-12-06 20:08:58,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 563 transitions, 5109 flow [2021-12-06 20:08:58,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 563 transitions, 5051 flow, removed 24 selfloop flow, removed 5 redundant places. [2021-12-06 20:08:58,705 INFO L242 Difference]: Finished difference. Result has 211 places, 269 transitions, 1883 flow [2021-12-06 20:08:58,705 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1785, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1883, PETRI_PLACES=211, PETRI_TRANSITIONS=269} [2021-12-06 20:08:58,705 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 93 predicate places. [2021-12-06 20:08:58,705 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 269 transitions, 1883 flow [2021-12-06 20:08:58,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:58,706 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:08:58,706 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:08:58,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 20:08:58,706 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:08:58,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:08:58,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1502186247, now seen corresponding path program 4 times [2021-12-06 20:08:58,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:08:58,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916518501] [2021-12-06 20:08:58,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:08:58,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:08:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:08:58,804 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 20:08:58,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:08:58,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916518501] [2021-12-06 20:08:58,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916518501] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:08:58,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:08:58,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:08:58,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497019454] [2021-12-06 20:08:58,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:08:58,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:08:58,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:08:58,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:08:58,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:08:58,806 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:08:58,807 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 269 transitions, 1883 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:08:58,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:08:58,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:08:58,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:00,443 INFO L129 PetriNetUnfolder]: 3096/9455 cut-off events. [2021-12-06 20:09:00,443 INFO L130 PetriNetUnfolder]: For 25381/25411 co-relation queries the response was YES. [2021-12-06 20:09:00,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34096 conditions, 9455 events. 3096/9455 cut-off events. For 25381/25411 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 94108 event pairs, 810 based on Foata normal form. 24/9407 useless extension candidates. Maximal degree in co-relation 34019. Up to 3197 conditions per place. [2021-12-06 20:09:00,501 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 410 selfloop transitions, 19 changer transitions 73/565 dead transitions. [2021-12-06 20:09:00,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 565 transitions, 5153 flow [2021-12-06 20:09:00,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:00,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:00,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 930 transitions. [2021-12-06 20:09:00,503 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7351778656126482 [2021-12-06 20:09:00,503 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 930 transitions. [2021-12-06 20:09:00,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 930 transitions. [2021-12-06 20:09:00,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:00,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 930 transitions. [2021-12-06 20:09:00,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.54545454545455) internal successors, (930), 11 states have internal predecessors, (930), 0 states have call successors, (0), 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 20:09:00,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:00,506 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:00,506 INFO L186 Difference]: Start difference. First operand has 211 places, 269 transitions, 1883 flow. Second operand 11 states and 930 transitions. [2021-12-06 20:09:00,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 565 transitions, 5153 flow [2021-12-06 20:09:00,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 565 transitions, 5021 flow, removed 22 selfloop flow, removed 10 redundant places. [2021-12-06 20:09:00,604 INFO L242 Difference]: Finished difference. Result has 215 places, 272 transitions, 1890 flow [2021-12-06 20:09:00,604 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1793, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1890, PETRI_PLACES=215, PETRI_TRANSITIONS=272} [2021-12-06 20:09:00,605 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 97 predicate places. [2021-12-06 20:09:00,605 INFO L470 AbstractCegarLoop]: Abstraction has has 215 places, 272 transitions, 1890 flow [2021-12-06 20:09:00,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:00,605 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:00,605 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:00,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 20:09:00,605 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:00,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash 85719459, now seen corresponding path program 5 times [2021-12-06 20:09:00,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:00,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123469959] [2021-12-06 20:09:00,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:00,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:00,703 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 20:09:00,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:00,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123469959] [2021-12-06 20:09:00,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123469959] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:00,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:00,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:00,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877853255] [2021-12-06 20:09:00,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:00,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:00,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:00,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:00,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:00,705 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:00,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 272 transitions, 1890 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:00,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:00,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:00,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:02,739 INFO L129 PetriNetUnfolder]: 3548/11010 cut-off events. [2021-12-06 20:09:02,739 INFO L130 PetriNetUnfolder]: For 25915/25942 co-relation queries the response was YES. [2021-12-06 20:09:02,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38821 conditions, 11010 events. 3548/11010 cut-off events. For 25915/25942 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 113938 event pairs, 1178 based on Foata normal form. 18/10936 useless extension candidates. Maximal degree in co-relation 38744. Up to 3197 conditions per place. [2021-12-06 20:09:02,806 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 729 selfloop transitions, 16 changer transitions 44/852 dead transitions. [2021-12-06 20:09:02,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 852 transitions, 8085 flow [2021-12-06 20:09:02,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:02,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:02,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 968 transitions. [2021-12-06 20:09:02,808 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7652173913043478 [2021-12-06 20:09:02,808 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 968 transitions. [2021-12-06 20:09:02,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 968 transitions. [2021-12-06 20:09:02,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:02,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 968 transitions. [2021-12-06 20:09:02,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 88.0) internal successors, (968), 11 states have internal predecessors, (968), 0 states have call successors, (0), 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 20:09:02,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:02,811 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:02,811 INFO L186 Difference]: Start difference. First operand has 215 places, 272 transitions, 1890 flow. Second operand 11 states and 968 transitions. [2021-12-06 20:09:02,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 852 transitions, 8085 flow [2021-12-06 20:09:02,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 852 transitions, 8026 flow, removed 21 selfloop flow, removed 6 redundant places. [2021-12-06 20:09:02,937 INFO L242 Difference]: Finished difference. Result has 221 places, 276 transitions, 1955 flow [2021-12-06 20:09:02,937 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1861, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1955, PETRI_PLACES=221, PETRI_TRANSITIONS=276} [2021-12-06 20:09:02,938 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 103 predicate places. [2021-12-06 20:09:02,938 INFO L470 AbstractCegarLoop]: Abstraction has has 221 places, 276 transitions, 1955 flow [2021-12-06 20:09:02,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:02,938 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:02,938 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:02,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 20:09:02,938 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:02,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:02,939 INFO L85 PathProgramCache]: Analyzing trace with hash 735707487, now seen corresponding path program 6 times [2021-12-06 20:09:02,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:02,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464328776] [2021-12-06 20:09:02,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:02,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:03,076 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 20:09:03,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:03,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464328776] [2021-12-06 20:09:03,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464328776] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:03,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:03,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:03,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422759167] [2021-12-06 20:09:03,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:03,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:03,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:03,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:03,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:03,079 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:03,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 276 transitions, 1955 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:03,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:03,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:03,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:05,137 INFO L129 PetriNetUnfolder]: 4012/12414 cut-off events. [2021-12-06 20:09:05,137 INFO L130 PetriNetUnfolder]: For 30063/30091 co-relation queries the response was YES. [2021-12-06 20:09:05,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44067 conditions, 12414 events. 4012/12414 cut-off events. For 30063/30091 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 131590 event pairs, 1348 based on Foata normal form. 19/12336 useless extension candidates. Maximal degree in co-relation 43988. Up to 3945 conditions per place. [2021-12-06 20:09:05,237 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 576 selfloop transitions, 17 changer transitions 60/716 dead transitions. [2021-12-06 20:09:05,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 716 transitions, 6708 flow [2021-12-06 20:09:05,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:05,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:05,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2021-12-06 20:09:05,239 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7494071146245059 [2021-12-06 20:09:05,239 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2021-12-06 20:09:05,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2021-12-06 20:09:05,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:05,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2021-12-06 20:09:05,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.18181818181819) internal successors, (948), 11 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:05,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:05,242 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:05,242 INFO L186 Difference]: Start difference. First operand has 221 places, 276 transitions, 1955 flow. Second operand 11 states and 948 transitions. [2021-12-06 20:09:05,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 716 transitions, 6708 flow [2021-12-06 20:09:05,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 716 transitions, 6669 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-12-06 20:09:05,395 INFO L242 Difference]: Finished difference. Result has 227 places, 280 transitions, 2025 flow [2021-12-06 20:09:05,395 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2025, PETRI_PLACES=227, PETRI_TRANSITIONS=280} [2021-12-06 20:09:05,396 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 109 predicate places. [2021-12-06 20:09:05,396 INFO L470 AbstractCegarLoop]: Abstraction has has 227 places, 280 transitions, 2025 flow [2021-12-06 20:09:05,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:05,396 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:05,396 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:05,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 20:09:05,396 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:05,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:05,396 INFO L85 PathProgramCache]: Analyzing trace with hash -291347527, now seen corresponding path program 7 times [2021-12-06 20:09:05,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:05,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038871279] [2021-12-06 20:09:05,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:05,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:05,531 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 20:09:05,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:05,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038871279] [2021-12-06 20:09:05,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038871279] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:05,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:05,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:05,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019702932] [2021-12-06 20:09:05,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:05,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:05,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:05,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:05,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:05,533 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:05,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 280 transitions, 2025 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:05,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:05,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:05,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:07,809 INFO L129 PetriNetUnfolder]: 4491/13988 cut-off events. [2021-12-06 20:09:07,809 INFO L130 PetriNetUnfolder]: For 36472/36518 co-relation queries the response was YES. [2021-12-06 20:09:07,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49869 conditions, 13988 events. 4491/13988 cut-off events. For 36472/36518 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 151897 event pairs, 1604 based on Foata normal form. 20/13892 useless extension candidates. Maximal degree in co-relation 49787. Up to 3197 conditions per place. [2021-12-06 20:09:07,920 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 881 selfloop transitions, 18 changer transitions 44/1006 dead transitions. [2021-12-06 20:09:07,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 1006 transitions, 9729 flow [2021-12-06 20:09:07,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:07,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 986 transitions. [2021-12-06 20:09:07,921 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7794466403162056 [2021-12-06 20:09:07,922 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 986 transitions. [2021-12-06 20:09:07,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 986 transitions. [2021-12-06 20:09:07,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:07,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 986 transitions. [2021-12-06 20:09:07,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 89.63636363636364) internal successors, (986), 11 states have internal predecessors, (986), 0 states have call successors, (0), 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 20:09:07,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:07,924 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:07,924 INFO L186 Difference]: Start difference. First operand has 227 places, 280 transitions, 2025 flow. Second operand 11 states and 986 transitions. [2021-12-06 20:09:07,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 1006 transitions, 9729 flow [2021-12-06 20:09:08,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 1006 transitions, 9690 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-12-06 20:09:08,113 INFO L242 Difference]: Finished difference. Result has 234 places, 285 transitions, 2122 flow [2021-12-06 20:09:08,113 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1994, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2122, PETRI_PLACES=234, PETRI_TRANSITIONS=285} [2021-12-06 20:09:08,114 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 116 predicate places. [2021-12-06 20:09:08,114 INFO L470 AbstractCegarLoop]: Abstraction has has 234 places, 285 transitions, 2122 flow [2021-12-06 20:09:08,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:08,114 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:08,114 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:08,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 20:09:08,114 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:08,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:08,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1854484877, now seen corresponding path program 8 times [2021-12-06 20:09:08,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:08,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227363979] [2021-12-06 20:09:08,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:08,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:08,252 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 20:09:08,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:08,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227363979] [2021-12-06 20:09:08,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227363979] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:08,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:08,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:08,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209130303] [2021-12-06 20:09:08,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:08,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:08,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:08,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:08,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:08,254 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:08,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 285 transitions, 2122 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:08,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:08,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:08,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:10,950 INFO L129 PetriNetUnfolder]: 4479/13937 cut-off events. [2021-12-06 20:09:10,950 INFO L130 PetriNetUnfolder]: For 37724/37770 co-relation queries the response was YES. [2021-12-06 20:09:11,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50051 conditions, 13937 events. 4479/13937 cut-off events. For 37724/37770 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 151431 event pairs, 1474 based on Foata normal form. 25/13855 useless extension candidates. Maximal degree in co-relation 49965. Up to 3994 conditions per place. [2021-12-06 20:09:11,125 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 574 selfloop transitions, 21 changer transitions 60/718 dead transitions. [2021-12-06 20:09:11,126 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 718 transitions, 6862 flow [2021-12-06 20:09:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:11,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:11,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 947 transitions. [2021-12-06 20:09:11,128 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7486166007905138 [2021-12-06 20:09:11,128 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 947 transitions. [2021-12-06 20:09:11,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 947 transitions. [2021-12-06 20:09:11,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:11,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 947 transitions. [2021-12-06 20:09:11,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.0909090909091) internal successors, (947), 11 states have internal predecessors, (947), 0 states have call successors, (0), 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 20:09:11,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:11,131 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:11,132 INFO L186 Difference]: Start difference. First operand has 234 places, 285 transitions, 2122 flow. Second operand 11 states and 947 transitions. [2021-12-06 20:09:11,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 718 transitions, 6862 flow [2021-12-06 20:09:11,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 718 transitions, 6815 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-12-06 20:09:11,387 INFO L242 Difference]: Finished difference. Result has 241 places, 287 transitions, 2172 flow [2021-12-06 20:09:11,388 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2082, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2172, PETRI_PLACES=241, PETRI_TRANSITIONS=287} [2021-12-06 20:09:11,388 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 123 predicate places. [2021-12-06 20:09:11,388 INFO L470 AbstractCegarLoop]: Abstraction has has 241 places, 287 transitions, 2172 flow [2021-12-06 20:09:11,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:11,388 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:11,389 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:11,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 20:09:11,389 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:11,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:11,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1002020323, now seen corresponding path program 9 times [2021-12-06 20:09:11,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:11,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599982345] [2021-12-06 20:09:11,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:11,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:11,592 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 20:09:11,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:11,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599982345] [2021-12-06 20:09:11,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599982345] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:11,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:11,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:11,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168850363] [2021-12-06 20:09:11,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:11,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:11,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:11,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:11,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:11,594 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:11,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 287 transitions, 2172 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:11,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:11,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:11,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:13,810 INFO L129 PetriNetUnfolder]: 3988/12444 cut-off events. [2021-12-06 20:09:13,810 INFO L130 PetriNetUnfolder]: For 34029/34069 co-relation queries the response was YES. [2021-12-06 20:09:13,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44873 conditions, 12444 events. 3988/12444 cut-off events. For 34029/34069 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 132388 event pairs, 1346 based on Foata normal form. 31/12379 useless extension candidates. Maximal degree in co-relation 44784. Up to 3197 conditions per place. [2021-12-06 20:09:13,951 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 544 selfloop transitions, 15 changer transitions 57/679 dead transitions. [2021-12-06 20:09:13,951 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 679 transitions, 6521 flow [2021-12-06 20:09:13,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:13,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:13,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 934 transitions. [2021-12-06 20:09:13,953 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7383399209486166 [2021-12-06 20:09:13,953 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 934 transitions. [2021-12-06 20:09:13,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 934 transitions. [2021-12-06 20:09:13,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:13,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 934 transitions. [2021-12-06 20:09:13,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.9090909090909) internal successors, (934), 11 states have internal predecessors, (934), 0 states have call successors, (0), 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 20:09:13,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:13,956 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:13,956 INFO L186 Difference]: Start difference. First operand has 241 places, 287 transitions, 2172 flow. Second operand 11 states and 934 transitions. [2021-12-06 20:09:13,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 679 transitions, 6521 flow [2021-12-06 20:09:14,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 679 transitions, 6426 flow, removed 16 selfloop flow, removed 11 redundant places. [2021-12-06 20:09:14,154 INFO L242 Difference]: Finished difference. Result has 242 places, 282 transitions, 2059 flow [2021-12-06 20:09:14,154 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2059, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2059, PETRI_PLACES=242, PETRI_TRANSITIONS=282} [2021-12-06 20:09:14,154 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 124 predicate places. [2021-12-06 20:09:14,154 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 282 transitions, 2059 flow [2021-12-06 20:09:14,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:14,155 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:14,155 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:14,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 20:09:14,155 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:14,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:14,155 INFO L85 PathProgramCache]: Analyzing trace with hash -326382251, now seen corresponding path program 10 times [2021-12-06 20:09:14,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:14,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578971200] [2021-12-06 20:09:14,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:14,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:14,290 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 20:09:14,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:14,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578971200] [2021-12-06 20:09:14,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578971200] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:14,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:14,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:14,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800292150] [2021-12-06 20:09:14,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:14,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:14,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:14,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:14,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:14,292 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:14,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 282 transitions, 2059 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:14,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:14,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:14,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:16,322 INFO L129 PetriNetUnfolder]: 3985/12386 cut-off events. [2021-12-06 20:09:16,322 INFO L130 PetriNetUnfolder]: For 31479/31507 co-relation queries the response was YES. [2021-12-06 20:09:16,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44169 conditions, 12386 events. 3985/12386 cut-off events. For 31479/31507 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 131526 event pairs, 1427 based on Foata normal form. 19/12308 useless extension candidates. Maximal degree in co-relation 44081. Up to 3197 conditions per place. [2021-12-06 20:09:16,443 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 718 selfloop transitions, 18 changer transitions 57/856 dead transitions. [2021-12-06 20:09:16,443 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 856 transitions, 8209 flow [2021-12-06 20:09:16,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:16,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:16,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 967 transitions. [2021-12-06 20:09:16,445 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7644268774703558 [2021-12-06 20:09:16,445 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 967 transitions. [2021-12-06 20:09:16,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 967 transitions. [2021-12-06 20:09:16,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:16,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 967 transitions. [2021-12-06 20:09:16,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.9090909090909) internal successors, (967), 11 states have internal predecessors, (967), 0 states have call successors, (0), 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 20:09:16,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:16,448 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:16,448 INFO L186 Difference]: Start difference. First operand has 242 places, 282 transitions, 2059 flow. Second operand 11 states and 967 transitions. [2021-12-06 20:09:16,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 856 transitions, 8209 flow [2021-12-06 20:09:16,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 856 transitions, 8133 flow, removed 14 selfloop flow, removed 14 redundant places. [2021-12-06 20:09:16,615 INFO L242 Difference]: Finished difference. Result has 237 places, 284 transitions, 2084 flow [2021-12-06 20:09:16,616 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2007, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2084, PETRI_PLACES=237, PETRI_TRANSITIONS=284} [2021-12-06 20:09:16,616 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 119 predicate places. [2021-12-06 20:09:16,616 INFO L470 AbstractCegarLoop]: Abstraction has has 237 places, 284 transitions, 2084 flow [2021-12-06 20:09:16,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:16,616 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:16,616 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:16,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 20:09:16,616 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:16,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:16,617 INFO L85 PathProgramCache]: Analyzing trace with hash -535518311, now seen corresponding path program 11 times [2021-12-06 20:09:16,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:16,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001077184] [2021-12-06 20:09:16,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:16,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:16,766 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 20:09:16,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:16,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001077184] [2021-12-06 20:09:16,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001077184] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:16,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:16,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:16,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937563989] [2021-12-06 20:09:16,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:16,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:16,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:16,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:16,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:16,769 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:16,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 284 transitions, 2084 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:16,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:16,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:16,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:18,847 INFO L129 PetriNetUnfolder]: 3971/12465 cut-off events. [2021-12-06 20:09:18,847 INFO L130 PetriNetUnfolder]: For 31530/31557 co-relation queries the response was YES. [2021-12-06 20:09:18,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44241 conditions, 12465 events. 3971/12465 cut-off events. For 31530/31557 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 132901 event pairs, 1544 based on Foata normal form. 29/12396 useless extension candidates. Maximal degree in co-relation 44156. Up to 3197 conditions per place. [2021-12-06 20:09:18,944 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 691 selfloop transitions, 15 changer transitions 53/822 dead transitions. [2021-12-06 20:09:18,944 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 822 transitions, 7913 flow [2021-12-06 20:09:18,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:18,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 952 transitions. [2021-12-06 20:09:18,946 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7525691699604743 [2021-12-06 20:09:18,946 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 952 transitions. [2021-12-06 20:09:18,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 952 transitions. [2021-12-06 20:09:18,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:18,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 952 transitions. [2021-12-06 20:09:18,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.54545454545455) internal successors, (952), 11 states have internal predecessors, (952), 0 states have call successors, (0), 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 20:09:18,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:18,949 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:18,949 INFO L186 Difference]: Start difference. First operand has 237 places, 284 transitions, 2084 flow. Second operand 11 states and 952 transitions. [2021-12-06 20:09:18,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 822 transitions, 7913 flow [2021-12-06 20:09:19,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 822 transitions, 7872 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-12-06 20:09:19,108 INFO L242 Difference]: Finished difference. Result has 242 places, 284 transitions, 2092 flow [2021-12-06 20:09:19,108 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2051, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2092, PETRI_PLACES=242, PETRI_TRANSITIONS=284} [2021-12-06 20:09:19,108 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 124 predicate places. [2021-12-06 20:09:19,108 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 284 transitions, 2092 flow [2021-12-06 20:09:19,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:19,108 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:19,109 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:19,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 20:09:19,109 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:19,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:19,109 INFO L85 PathProgramCache]: Analyzing trace with hash 402569375, now seen corresponding path program 12 times [2021-12-06 20:09:19,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:19,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062156877] [2021-12-06 20:09:19,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:19,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:19,251 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 20:09:19,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:19,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062156877] [2021-12-06 20:09:19,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062156877] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:19,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:19,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:19,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130268986] [2021-12-06 20:09:19,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:19,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:19,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:19,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:19,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:19,253 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:19,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 284 transitions, 2092 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:19,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:19,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:19,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:21,040 INFO L129 PetriNetUnfolder]: 3505/11020 cut-off events. [2021-12-06 20:09:21,040 INFO L130 PetriNetUnfolder]: For 27541/27565 co-relation queries the response was YES. [2021-12-06 20:09:21,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39062 conditions, 11020 events. 3505/11020 cut-off events. For 27541/27565 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 114688 event pairs, 1377 based on Foata normal form. 29/10963 useless extension candidates. Maximal degree in co-relation 38975. Up to 3197 conditions per place. [2021-12-06 20:09:21,153 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 526 selfloop transitions, 12 changer transitions 71/672 dead transitions. [2021-12-06 20:09:21,153 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 672 transitions, 6385 flow [2021-12-06 20:09:21,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:21,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:21,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 933 transitions. [2021-12-06 20:09:21,155 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7375494071146245 [2021-12-06 20:09:21,155 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 933 transitions. [2021-12-06 20:09:21,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 933 transitions. [2021-12-06 20:09:21,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:21,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 933 transitions. [2021-12-06 20:09:21,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.81818181818181) internal successors, (933), 11 states have internal predecessors, (933), 0 states have call successors, (0), 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 20:09:21,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:21,158 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:21,158 INFO L186 Difference]: Start difference. First operand has 242 places, 284 transitions, 2092 flow. Second operand 11 states and 933 transitions. [2021-12-06 20:09:21,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 672 transitions, 6385 flow [2021-12-06 20:09:21,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 672 transitions, 6347 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-12-06 20:09:21,302 INFO L242 Difference]: Finished difference. Result has 242 places, 276 transitions, 1971 flow [2021-12-06 20:09:21,302 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2029, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1971, PETRI_PLACES=242, PETRI_TRANSITIONS=276} [2021-12-06 20:09:21,302 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 124 predicate places. [2021-12-06 20:09:21,302 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 276 transitions, 1971 flow [2021-12-06 20:09:21,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:21,303 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:21,303 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:21,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 20:09:21,303 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:21,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:21,303 INFO L85 PathProgramCache]: Analyzing trace with hash 133274947, now seen corresponding path program 13 times [2021-12-06 20:09:21,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:21,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464866775] [2021-12-06 20:09:21,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:21,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:21,392 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 20:09:21,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:21,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464866775] [2021-12-06 20:09:21,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464866775] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:21,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:21,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:21,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149179417] [2021-12-06 20:09:21,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:21,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:21,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:21,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:21,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:21,395 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:21,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 276 transitions, 1971 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:21,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:21,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:21,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:22,865 INFO L129 PetriNetUnfolder]: 3040/9425 cut-off events. [2021-12-06 20:09:22,865 INFO L130 PetriNetUnfolder]: For 22905/22932 co-relation queries the response was YES. [2021-12-06 20:09:22,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33593 conditions, 9425 events. 3040/9425 cut-off events. For 22905/22932 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 94629 event pairs, 971 based on Foata normal form. 30/9382 useless extension candidates. Maximal degree in co-relation 33534. Up to 3197 conditions per place. [2021-12-06 20:09:22,955 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 379 selfloop transitions, 12 changer transitions 70/524 dead transitions. [2021-12-06 20:09:22,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 524 transitions, 4789 flow [2021-12-06 20:09:22,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:22,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:22,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 913 transitions. [2021-12-06 20:09:22,957 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7217391304347827 [2021-12-06 20:09:22,957 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 913 transitions. [2021-12-06 20:09:22,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 913 transitions. [2021-12-06 20:09:22,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:22,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 913 transitions. [2021-12-06 20:09:22,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 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 20:09:22,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:22,960 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:22,960 INFO L186 Difference]: Start difference. First operand has 242 places, 276 transitions, 1971 flow. Second operand 11 states and 913 transitions. [2021-12-06 20:09:22,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 524 transitions, 4789 flow [2021-12-06 20:09:23,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 524 transitions, 4745 flow, removed 6 selfloop flow, removed 11 redundant places. [2021-12-06 20:09:23,071 INFO L242 Difference]: Finished difference. Result has 233 places, 272 transitions, 1899 flow [2021-12-06 20:09:23,072 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1897, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1899, PETRI_PLACES=233, PETRI_TRANSITIONS=272} [2021-12-06 20:09:23,072 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 115 predicate places. [2021-12-06 20:09:23,072 INFO L470 AbstractCegarLoop]: Abstraction has has 233 places, 272 transitions, 1899 flow [2021-12-06 20:09:23,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:23,072 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:23,072 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:23,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 20:09:23,073 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:23,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:23,073 INFO L85 PathProgramCache]: Analyzing trace with hash 938766387, now seen corresponding path program 14 times [2021-12-06 20:09:23,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:23,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009723540] [2021-12-06 20:09:23,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:23,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:23,247 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 20:09:23,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:23,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009723540] [2021-12-06 20:09:23,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009723540] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:23,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:23,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:23,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684470470] [2021-12-06 20:09:23,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:23,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:23,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:23,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:23,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:23,249 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:23,250 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 272 transitions, 1899 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:23,250 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:23,250 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:23,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:24,947 INFO L129 PetriNetUnfolder]: 3038/9492 cut-off events. [2021-12-06 20:09:24,947 INFO L130 PetriNetUnfolder]: For 22385/22404 co-relation queries the response was YES. [2021-12-06 20:09:24,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33503 conditions, 9492 events. 3038/9492 cut-off events. For 22385/22404 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 95513 event pairs, 1113 based on Foata normal form. 28/9445 useless extension candidates. Maximal degree in co-relation 33446. Up to 3197 conditions per place. [2021-12-06 20:09:25,011 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 536 selfloop transitions, 13 changer transitions 54/666 dead transitions. [2021-12-06 20:09:25,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 666 transitions, 6227 flow [2021-12-06 20:09:25,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:25,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:25,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 931 transitions. [2021-12-06 20:09:25,013 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7359683794466403 [2021-12-06 20:09:25,013 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 931 transitions. [2021-12-06 20:09:25,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 931 transitions. [2021-12-06 20:09:25,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:25,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 931 transitions. [2021-12-06 20:09:25,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.63636363636364) internal successors, (931), 11 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:25,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:25,015 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:25,015 INFO L186 Difference]: Start difference. First operand has 233 places, 272 transitions, 1899 flow. Second operand 11 states and 931 transitions. [2021-12-06 20:09:25,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 666 transitions, 6227 flow [2021-12-06 20:09:25,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 666 transitions, 6170 flow, removed 11 selfloop flow, removed 12 redundant places. [2021-12-06 20:09:25,112 INFO L242 Difference]: Finished difference. Result has 229 places, 272 transitions, 1894 flow [2021-12-06 20:09:25,113 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1857, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1894, PETRI_PLACES=229, PETRI_TRANSITIONS=272} [2021-12-06 20:09:25,113 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 111 predicate places. [2021-12-06 20:09:25,113 INFO L470 AbstractCegarLoop]: Abstraction has has 229 places, 272 transitions, 1894 flow [2021-12-06 20:09:25,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:25,113 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:25,114 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:25,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 20:09:25,114 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:25,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:25,114 INFO L85 PathProgramCache]: Analyzing trace with hash -875688455, now seen corresponding path program 15 times [2021-12-06 20:09:25,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:25,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028353875] [2021-12-06 20:09:25,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:25,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:25,274 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 20:09:25,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:25,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028353875] [2021-12-06 20:09:25,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028353875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:25,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:25,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:25,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619477910] [2021-12-06 20:09:25,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:25,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:25,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:25,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:25,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:25,277 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:25,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 272 transitions, 1894 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:25,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:25,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:25,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:26,996 INFO L129 PetriNetUnfolder]: 3037/9417 cut-off events. [2021-12-06 20:09:26,996 INFO L130 PetriNetUnfolder]: For 22109/22131 co-relation queries the response was YES. [2021-12-06 20:09:27,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33246 conditions, 9417 events. 3037/9417 cut-off events. For 22109/22131 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 94410 event pairs, 1064 based on Foata normal form. 18/9360 useless extension candidates. Maximal degree in co-relation 33192. Up to 3197 conditions per place. [2021-12-06 20:09:27,082 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 549 selfloop transitions, 16 changer transitions 72/700 dead transitions. [2021-12-06 20:09:27,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 700 transitions, 6525 flow [2021-12-06 20:09:27,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:27,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:27,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 946 transitions. [2021-12-06 20:09:27,084 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7478260869565218 [2021-12-06 20:09:27,084 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 946 transitions. [2021-12-06 20:09:27,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 946 transitions. [2021-12-06 20:09:27,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:27,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 946 transitions. [2021-12-06 20:09:27,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 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 20:09:27,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:27,087 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:27,087 INFO L186 Difference]: Start difference. First operand has 229 places, 272 transitions, 1894 flow. Second operand 11 states and 946 transitions. [2021-12-06 20:09:27,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 700 transitions, 6525 flow [2021-12-06 20:09:27,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 700 transitions, 6479 flow, removed 7 selfloop flow, removed 9 redundant places. [2021-12-06 20:09:27,200 INFO L242 Difference]: Finished difference. Result has 232 places, 274 transitions, 1931 flow [2021-12-06 20:09:27,201 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1860, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1931, PETRI_PLACES=232, PETRI_TRANSITIONS=274} [2021-12-06 20:09:27,201 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 114 predicate places. [2021-12-06 20:09:27,201 INFO L470 AbstractCegarLoop]: Abstraction has has 232 places, 274 transitions, 1931 flow [2021-12-06 20:09:27,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:27,201 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:27,201 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:27,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 20:09:27,202 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:27,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:27,202 INFO L85 PathProgramCache]: Analyzing trace with hash 268979899, now seen corresponding path program 16 times [2021-12-06 20:09:27,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:27,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071793266] [2021-12-06 20:09:27,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:27,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:27,300 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 20:09:27,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:27,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071793266] [2021-12-06 20:09:27,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071793266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:27,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:27,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:27,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862561959] [2021-12-06 20:09:27,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:27,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:27,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:27,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:27,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:27,303 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:27,304 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 274 transitions, 1931 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:27,304 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:27,304 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:27,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:28,576 INFO L129 PetriNetUnfolder]: 2558/8052 cut-off events. [2021-12-06 20:09:28,576 INFO L130 PetriNetUnfolder]: For 18879/18897 co-relation queries the response was YES. [2021-12-06 20:09:28,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28297 conditions, 8052 events. 2558/8052 cut-off events. For 18879/18897 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 78107 event pairs, 1014 based on Foata normal form. 28/8016 useless extension candidates. Maximal degree in co-relation 28241. Up to 3197 conditions per place. [2021-12-06 20:09:28,635 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 357 selfloop transitions, 10 changer transitions 86/516 dead transitions. [2021-12-06 20:09:28,635 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 516 transitions, 4708 flow [2021-12-06 20:09:28,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:28,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:28,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 912 transitions. [2021-12-06 20:09:28,636 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7209486166007905 [2021-12-06 20:09:28,636 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 912 transitions. [2021-12-06 20:09:28,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 912 transitions. [2021-12-06 20:09:28,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:28,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 912 transitions. [2021-12-06 20:09:28,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.9090909090909) internal successors, (912), 11 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 20:09:28,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:28,639 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:28,639 INFO L186 Difference]: Start difference. First operand has 232 places, 274 transitions, 1931 flow. Second operand 11 states and 912 transitions. [2021-12-06 20:09:28,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 516 transitions, 4708 flow [2021-12-06 20:09:28,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 516 transitions, 4681 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-12-06 20:09:28,721 INFO L242 Difference]: Finished difference. Result has 234 places, 266 transitions, 1824 flow [2021-12-06 20:09:28,721 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1880, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1824, PETRI_PLACES=234, PETRI_TRANSITIONS=266} [2021-12-06 20:09:28,721 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 116 predicate places. [2021-12-06 20:09:28,722 INFO L470 AbstractCegarLoop]: Abstraction has has 234 places, 266 transitions, 1824 flow [2021-12-06 20:09:28,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:28,722 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:28,722 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:28,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-06 20:09:28,722 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:28,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:28,722 INFO L85 PathProgramCache]: Analyzing trace with hash -762412859, now seen corresponding path program 17 times [2021-12-06 20:09:28,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:28,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917160284] [2021-12-06 20:09:28,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:28,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:28,832 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 20:09:28,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:28,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917160284] [2021-12-06 20:09:28,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917160284] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:28,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:28,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:28,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891513210] [2021-12-06 20:09:28,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:28,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:28,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:28,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:28,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:28,834 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:28,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 266 transitions, 1824 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:28,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:28,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:28,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:30,449 INFO L129 PetriNetUnfolder]: 3008/9287 cut-off events. [2021-12-06 20:09:30,450 INFO L130 PetriNetUnfolder]: For 22074/22107 co-relation queries the response was YES. [2021-12-06 20:09:30,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32827 conditions, 9287 events. 3008/9287 cut-off events. For 22074/22107 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 93039 event pairs, 816 based on Foata normal form. 32/9253 useless extension candidates. Maximal degree in co-relation 32772. Up to 3059 conditions per place. [2021-12-06 20:09:30,536 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 733 selfloop transitions, 17 changer transitions 34/847 dead transitions. [2021-12-06 20:09:30,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 847 transitions, 8007 flow [2021-12-06 20:09:30,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:30,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:30,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 965 transitions. [2021-12-06 20:09:30,538 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7628458498023716 [2021-12-06 20:09:30,538 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 965 transitions. [2021-12-06 20:09:30,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 965 transitions. [2021-12-06 20:09:30,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:30,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 965 transitions. [2021-12-06 20:09:30,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.72727272727273) internal successors, (965), 11 states have internal predecessors, (965), 0 states have call successors, (0), 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 20:09:30,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:30,541 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:30,541 INFO L186 Difference]: Start difference. First operand has 234 places, 266 transitions, 1824 flow. Second operand 11 states and 965 transitions. [2021-12-06 20:09:30,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 847 transitions, 8007 flow [2021-12-06 20:09:30,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 847 transitions, 7942 flow, removed 15 selfloop flow, removed 14 redundant places. [2021-12-06 20:09:30,649 INFO L242 Difference]: Finished difference. Result has 219 places, 271 transitions, 1890 flow [2021-12-06 20:09:30,650 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1778, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1890, PETRI_PLACES=219, PETRI_TRANSITIONS=271} [2021-12-06 20:09:30,650 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 101 predicate places. [2021-12-06 20:09:30,650 INFO L470 AbstractCegarLoop]: Abstraction has has 219 places, 271 transitions, 1890 flow [2021-12-06 20:09:30,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:30,651 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:30,651 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:30,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-06 20:09:30,651 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:30,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:30,651 INFO L85 PathProgramCache]: Analyzing trace with hash 571629491, now seen corresponding path program 18 times [2021-12-06 20:09:30,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:30,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624410045] [2021-12-06 20:09:30,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:30,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:30,771 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 20:09:30,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:30,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624410045] [2021-12-06 20:09:30,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624410045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:30,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:30,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:30,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859947203] [2021-12-06 20:09:30,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:30,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:30,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:30,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:30,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:30,773 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:30,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 271 transitions, 1890 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:30,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:30,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:30,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:32,310 INFO L129 PetriNetUnfolder]: 3008/9201 cut-off events. [2021-12-06 20:09:32,310 INFO L130 PetriNetUnfolder]: For 22543/22593 co-relation queries the response was YES. [2021-12-06 20:09:32,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32936 conditions, 9201 events. 3008/9201 cut-off events. For 22543/22593 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 91788 event pairs, 645 based on Foata normal form. 30/9169 useless extension candidates. Maximal degree in co-relation 32885. Up to 3059 conditions per place. [2021-12-06 20:09:32,384 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 411 selfloop transitions, 23 changer transitions 60/557 dead transitions. [2021-12-06 20:09:32,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 557 transitions, 5082 flow [2021-12-06 20:09:32,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:32,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:32,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 925 transitions. [2021-12-06 20:09:32,385 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7312252964426877 [2021-12-06 20:09:32,385 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 925 transitions. [2021-12-06 20:09:32,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 925 transitions. [2021-12-06 20:09:32,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:32,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 925 transitions. [2021-12-06 20:09:32,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.0909090909091) internal successors, (925), 11 states have internal predecessors, (925), 0 states have call successors, (0), 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 20:09:32,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:32,388 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:32,388 INFO L186 Difference]: Start difference. First operand has 219 places, 271 transitions, 1890 flow. Second operand 11 states and 925 transitions. [2021-12-06 20:09:32,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 557 transitions, 5082 flow [2021-12-06 20:09:32,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 557 transitions, 5054 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-12-06 20:09:32,487 INFO L242 Difference]: Finished difference. Result has 225 places, 271 transitions, 1923 flow [2021-12-06 20:09:32,488 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1865, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1923, PETRI_PLACES=225, PETRI_TRANSITIONS=271} [2021-12-06 20:09:32,488 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 107 predicate places. [2021-12-06 20:09:32,488 INFO L470 AbstractCegarLoop]: Abstraction has has 225 places, 271 transitions, 1923 flow [2021-12-06 20:09:32,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:32,488 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:32,488 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:32,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-06 20:09:32,488 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:32,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:32,489 INFO L85 PathProgramCache]: Analyzing trace with hash 963516025, now seen corresponding path program 19 times [2021-12-06 20:09:32,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:32,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085147082] [2021-12-06 20:09:32,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:32,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:32,616 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 20:09:32,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:32,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085147082] [2021-12-06 20:09:32,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085147082] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:32,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:32,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:32,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055417496] [2021-12-06 20:09:32,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:32,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:32,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:32,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:32,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:32,619 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:32,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 271 transitions, 1923 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:32,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:32,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:32,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:34,020 INFO L129 PetriNetUnfolder]: 2540/7930 cut-off events. [2021-12-06 20:09:34,021 INFO L130 PetriNetUnfolder]: For 20082/20115 co-relation queries the response was YES. [2021-12-06 20:09:34,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28377 conditions, 7930 events. 2540/7930 cut-off events. For 20082/20115 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 76828 event pairs, 837 based on Foata normal form. 16/7889 useless extension candidates. Maximal degree in co-relation 28324. Up to 3059 conditions per place. [2021-12-06 20:09:34,089 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 532 selfloop transitions, 12 changer transitions 57/664 dead transitions. [2021-12-06 20:09:34,089 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 664 transitions, 6238 flow [2021-12-06 20:09:34,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:34,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:34,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 930 transitions. [2021-12-06 20:09:34,091 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7351778656126482 [2021-12-06 20:09:34,091 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 930 transitions. [2021-12-06 20:09:34,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 930 transitions. [2021-12-06 20:09:34,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:34,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 930 transitions. [2021-12-06 20:09:34,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.54545454545455) internal successors, (930), 11 states have internal predecessors, (930), 0 states have call successors, (0), 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 20:09:34,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:34,093 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:34,094 INFO L186 Difference]: Start difference. First operand has 225 places, 271 transitions, 1923 flow. Second operand 11 states and 930 transitions. [2021-12-06 20:09:34,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 664 transitions, 6238 flow [2021-12-06 20:09:34,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 664 transitions, 6186 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-12-06 20:09:34,179 INFO L242 Difference]: Finished difference. Result has 225 places, 266 transitions, 1829 flow [2021-12-06 20:09:34,179 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1845, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1829, PETRI_PLACES=225, PETRI_TRANSITIONS=266} [2021-12-06 20:09:34,179 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 107 predicate places. [2021-12-06 20:09:34,180 INFO L470 AbstractCegarLoop]: Abstraction has has 225 places, 266 transitions, 1829 flow [2021-12-06 20:09:34,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:34,180 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:34,180 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:34,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-06 20:09:34,180 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:34,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:34,180 INFO L85 PathProgramCache]: Analyzing trace with hash -24860845, now seen corresponding path program 20 times [2021-12-06 20:09:34,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:34,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770420174] [2021-12-06 20:09:34,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:34,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:34,350 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 20:09:34,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:34,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770420174] [2021-12-06 20:09:34,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770420174] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:34,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:34,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:34,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91023562] [2021-12-06 20:09:34,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:34,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:34,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:34,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:34,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:34,352 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:34,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 266 transitions, 1829 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:34,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:34,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:34,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:35,738 INFO L129 PetriNetUnfolder]: 2529/7792 cut-off events. [2021-12-06 20:09:35,738 INFO L130 PetriNetUnfolder]: For 18929/18967 co-relation queries the response was YES. [2021-12-06 20:09:35,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27876 conditions, 7792 events. 2529/7792 cut-off events. For 18929/18967 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 75129 event pairs, 654 based on Foata normal form. 31/7771 useless extension candidates. Maximal degree in co-relation 27823. Up to 3059 conditions per place. [2021-12-06 20:09:35,796 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 384 selfloop transitions, 13 changer transitions 57/517 dead transitions. [2021-12-06 20:09:35,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 517 transitions, 4716 flow [2021-12-06 20:09:35,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:35,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:35,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 910 transitions. [2021-12-06 20:09:35,797 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7193675889328063 [2021-12-06 20:09:35,797 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 910 transitions. [2021-12-06 20:09:35,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 910 transitions. [2021-12-06 20:09:35,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:35,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 910 transitions. [2021-12-06 20:09:35,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.72727272727273) internal successors, (910), 11 states have internal predecessors, (910), 0 states have call successors, (0), 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 20:09:35,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:35,800 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:35,800 INFO L186 Difference]: Start difference. First operand has 225 places, 266 transitions, 1829 flow. Second operand 11 states and 910 transitions. [2021-12-06 20:09:35,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 517 transitions, 4716 flow [2021-12-06 20:09:35,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 517 transitions, 4669 flow, removed 11 selfloop flow, removed 9 redundant places. [2021-12-06 20:09:35,876 INFO L242 Difference]: Finished difference. Result has 223 places, 266 transitions, 1835 flow [2021-12-06 20:09:35,877 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1798, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1835, PETRI_PLACES=223, PETRI_TRANSITIONS=266} [2021-12-06 20:09:35,877 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 105 predicate places. [2021-12-06 20:09:35,877 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 266 transitions, 1835 flow [2021-12-06 20:09:35,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:35,877 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:35,877 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:35,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-06 20:09:35,878 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:35,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:35,878 INFO L85 PathProgramCache]: Analyzing trace with hash -206799279, now seen corresponding path program 21 times [2021-12-06 20:09:35,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:35,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563745265] [2021-12-06 20:09:35,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:35,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:35,956 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 20:09:35,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:35,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563745265] [2021-12-06 20:09:35,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563745265] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:35,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:35,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:35,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256631426] [2021-12-06 20:09:35,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:35,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:35,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:35,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:35,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:35,958 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:35,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 266 transitions, 1835 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:35,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:35,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:35,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:37,257 INFO L129 PetriNetUnfolder]: 2527/7857 cut-off events. [2021-12-06 20:09:37,257 INFO L130 PetriNetUnfolder]: For 19147/19182 co-relation queries the response was YES. [2021-12-06 20:09:37,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27917 conditions, 7857 events. 2527/7857 cut-off events. For 19147/19182 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 76028 event pairs, 734 based on Foata normal form. 19/7822 useless extension candidates. Maximal degree in co-relation 27864. Up to 3059 conditions per place. [2021-12-06 20:09:37,323 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 557 selfloop transitions, 16 changer transitions 61/697 dead transitions. [2021-12-06 20:09:37,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 697 transitions, 6511 flow [2021-12-06 20:09:37,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:37,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:37,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 944 transitions. [2021-12-06 20:09:37,325 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7462450592885376 [2021-12-06 20:09:37,325 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 944 transitions. [2021-12-06 20:09:37,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 944 transitions. [2021-12-06 20:09:37,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:37,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 944 transitions. [2021-12-06 20:09:37,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.81818181818181) internal successors, (944), 11 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:37,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:37,328 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:37,328 INFO L186 Difference]: Start difference. First operand has 223 places, 266 transitions, 1835 flow. Second operand 11 states and 944 transitions. [2021-12-06 20:09:37,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 697 transitions, 6511 flow [2021-12-06 20:09:37,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 697 transitions, 6453 flow, removed 12 selfloop flow, removed 10 redundant places. [2021-12-06 20:09:37,412 INFO L242 Difference]: Finished difference. Result has 223 places, 266 transitions, 1834 flow [2021-12-06 20:09:37,412 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1795, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1834, PETRI_PLACES=223, PETRI_TRANSITIONS=266} [2021-12-06 20:09:37,412 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 105 predicate places. [2021-12-06 20:09:37,412 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 266 transitions, 1834 flow [2021-12-06 20:09:37,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:37,412 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:37,413 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:37,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-06 20:09:37,413 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:37,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:37,413 INFO L85 PathProgramCache]: Analyzing trace with hash -84973983, now seen corresponding path program 22 times [2021-12-06 20:09:37,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:37,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503135146] [2021-12-06 20:09:37,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:37,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:37,514 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 20:09:37,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:37,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503135146] [2021-12-06 20:09:37,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503135146] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:37,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:37,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:37,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134559984] [2021-12-06 20:09:37,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:37,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:37,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:37,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:37,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:37,516 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:37,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 266 transitions, 1834 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:37,516 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:37,516 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:37,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:38,583 INFO L129 PetriNetUnfolder]: 2034/6390 cut-off events. [2021-12-06 20:09:38,583 INFO L130 PetriNetUnfolder]: For 15032/15058 co-relation queries the response was YES. [2021-12-06 20:09:38,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22522 conditions, 6390 events. 2034/6390 cut-off events. For 15032/15058 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 59211 event pairs, 670 based on Foata normal form. 29/6376 useless extension candidates. Maximal degree in co-relation 22470. Up to 3059 conditions per place. [2021-12-06 20:09:38,624 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 367 selfloop transitions, 11 changer transitions 70/511 dead transitions. [2021-12-06 20:09:38,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 511 transitions, 4638 flow [2021-12-06 20:09:38,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:38,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:38,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 909 transitions. [2021-12-06 20:09:38,626 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7185770750988142 [2021-12-06 20:09:38,626 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 909 transitions. [2021-12-06 20:09:38,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 909 transitions. [2021-12-06 20:09:38,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:38,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 909 transitions. [2021-12-06 20:09:38,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.63636363636364) internal successors, (909), 11 states have internal predecessors, (909), 0 states have call successors, (0), 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 20:09:38,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:38,628 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:38,628 INFO L186 Difference]: Start difference. First operand has 223 places, 266 transitions, 1834 flow. Second operand 11 states and 909 transitions. [2021-12-06 20:09:38,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 511 transitions, 4638 flow [2021-12-06 20:09:38,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 511 transitions, 4592 flow, removed 7 selfloop flow, removed 11 redundant places. [2021-12-06 20:09:38,686 INFO L242 Difference]: Finished difference. Result has 224 places, 261 transitions, 1764 flow [2021-12-06 20:09:38,687 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1766, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1764, PETRI_PLACES=224, PETRI_TRANSITIONS=261} [2021-12-06 20:09:38,687 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 106 predicate places. [2021-12-06 20:09:38,687 INFO L470 AbstractCegarLoop]: Abstraction has has 224 places, 261 transitions, 1764 flow [2021-12-06 20:09:38,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:38,687 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:38,687 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:38,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-06 20:09:38,688 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:38,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash 537324001, now seen corresponding path program 23 times [2021-12-06 20:09:38,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:38,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573230412] [2021-12-06 20:09:38,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:38,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:38,817 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 20:09:38,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:38,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573230412] [2021-12-06 20:09:38,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573230412] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:38,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:38,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:38,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531075556] [2021-12-06 20:09:38,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:38,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:38,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:38,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:38,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:38,819 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:38,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 261 transitions, 1764 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:38,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:38,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:38,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:40,022 INFO L129 PetriNetUnfolder]: 2023/6202 cut-off events. [2021-12-06 20:09:40,022 INFO L130 PetriNetUnfolder]: For 14694/14720 co-relation queries the response was YES. [2021-12-06 20:09:40,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22123 conditions, 6202 events. 2023/6202 cut-off events. For 14694/14720 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 57009 event pairs, 333 based on Foata normal form. 33/6194 useless extension candidates. Maximal degree in co-relation 22071. Up to 2995 conditions per place. [2021-12-06 20:09:40,069 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 420 selfloop transitions, 17 changer transitions 47/547 dead transitions. [2021-12-06 20:09:40,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 547 transitions, 4924 flow [2021-12-06 20:09:40,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:40,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:40,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 925 transitions. [2021-12-06 20:09:40,071 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7312252964426877 [2021-12-06 20:09:40,071 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 925 transitions. [2021-12-06 20:09:40,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 925 transitions. [2021-12-06 20:09:40,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:40,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 925 transitions. [2021-12-06 20:09:40,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.0909090909091) internal successors, (925), 11 states have internal predecessors, (925), 0 states have call successors, (0), 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 20:09:40,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:40,074 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:40,074 INFO L186 Difference]: Start difference. First operand has 224 places, 261 transitions, 1764 flow. Second operand 11 states and 925 transitions. [2021-12-06 20:09:40,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 547 transitions, 4924 flow [2021-12-06 20:09:40,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 547 transitions, 4881 flow, removed 7 selfloop flow, removed 15 redundant places. [2021-12-06 20:09:40,134 INFO L242 Difference]: Finished difference. Result has 213 places, 261 transitions, 1766 flow [2021-12-06 20:09:40,134 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1721, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1766, PETRI_PLACES=213, PETRI_TRANSITIONS=261} [2021-12-06 20:09:40,134 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 95 predicate places. [2021-12-06 20:09:40,134 INFO L470 AbstractCegarLoop]: Abstraction has has 213 places, 261 transitions, 1766 flow [2021-12-06 20:09:40,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:40,135 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:40,135 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:40,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-06 20:09:40,135 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:40,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:40,135 INFO L85 PathProgramCache]: Analyzing trace with hash -518710975, now seen corresponding path program 24 times [2021-12-06 20:09:40,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:40,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143902371] [2021-12-06 20:09:40,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:40,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:40,264 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 20:09:40,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:40,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143902371] [2021-12-06 20:09:40,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143902371] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:40,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:40,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:40,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793989499] [2021-12-06 20:09:40,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:40,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:40,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:40,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:40,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:40,266 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:40,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 261 transitions, 1766 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:40,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:40,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:40,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:41,152 INFO L129 PetriNetUnfolder]: 1569/4841 cut-off events. [2021-12-06 20:09:41,152 INFO L130 PetriNetUnfolder]: For 11333/11358 co-relation queries the response was YES. [2021-12-06 20:09:41,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17302 conditions, 4841 events. 1569/4841 cut-off events. For 11333/11358 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 41925 event pairs, 280 based on Foata normal form. 19/4830 useless extension candidates. Maximal degree in co-relation 17256. Up to 2995 conditions per place. [2021-12-06 20:09:41,184 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 219 selfloop transitions, 8 changer transitions 74/364 dead transitions. [2021-12-06 20:09:41,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 364 transitions, 3119 flow [2021-12-06 20:09:41,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:41,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 890 transitions. [2021-12-06 20:09:41,186 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7035573122529645 [2021-12-06 20:09:41,186 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 890 transitions. [2021-12-06 20:09:41,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 890 transitions. [2021-12-06 20:09:41,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:41,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 890 transitions. [2021-12-06 20:09:41,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 80.9090909090909) internal successors, (890), 11 states have internal predecessors, (890), 0 states have call successors, (0), 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 20:09:41,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:41,189 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:41,189 INFO L186 Difference]: Start difference. First operand has 213 places, 261 transitions, 1766 flow. Second operand 11 states and 890 transitions. [2021-12-06 20:09:41,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 364 transitions, 3119 flow [2021-12-06 20:09:41,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 364 transitions, 3088 flow, removed 0 selfloop flow, removed 9 redundant places. [2021-12-06 20:09:41,230 INFO L242 Difference]: Finished difference. Result has 214 places, 251 transitions, 1647 flow [2021-12-06 20:09:41,230 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1709, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1647, PETRI_PLACES=214, PETRI_TRANSITIONS=251} [2021-12-06 20:09:41,231 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 96 predicate places. [2021-12-06 20:09:41,231 INFO L470 AbstractCegarLoop]: Abstraction has has 214 places, 251 transitions, 1647 flow [2021-12-06 20:09:41,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:41,231 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:41,231 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:41,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-06 20:09:41,232 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:41,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:41,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1685964285, now seen corresponding path program 25 times [2021-12-06 20:09:41,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:41,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628277541] [2021-12-06 20:09:41,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:41,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:41,353 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 20:09:41,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:41,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628277541] [2021-12-06 20:09:41,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628277541] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:41,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:41,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:41,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714631312] [2021-12-06 20:09:41,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:41,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:41,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:41,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:41,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:41,356 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:41,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 251 transitions, 1647 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:41,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:41,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:41,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:42,301 INFO L129 PetriNetUnfolder]: 1553/4797 cut-off events. [2021-12-06 20:09:42,302 INFO L130 PetriNetUnfolder]: For 10976/10988 co-relation queries the response was YES. [2021-12-06 20:09:42,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17015 conditions, 4797 events. 1553/4797 cut-off events. For 10976/10988 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 41431 event pairs, 449 based on Foata normal form. 18/4783 useless extension candidates. Maximal degree in co-relation 16969. Up to 2124 conditions per place. [2021-12-06 20:09:42,331 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 388 selfloop transitions, 12 changer transitions 58/521 dead transitions. [2021-12-06 20:09:42,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 521 transitions, 4636 flow [2021-12-06 20:09:42,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:42,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:42,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 911 transitions. [2021-12-06 20:09:42,333 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7201581027667984 [2021-12-06 20:09:42,333 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 911 transitions. [2021-12-06 20:09:42,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 911 transitions. [2021-12-06 20:09:42,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:42,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 911 transitions. [2021-12-06 20:09:42,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.81818181818181) internal successors, (911), 11 states have internal predecessors, (911), 0 states have call successors, (0), 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 20:09:42,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:42,337 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:42,337 INFO L186 Difference]: Start difference. First operand has 214 places, 251 transitions, 1647 flow. Second operand 11 states and 911 transitions. [2021-12-06 20:09:42,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 521 transitions, 4636 flow [2021-12-06 20:09:42,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 521 transitions, 4539 flow, removed 9 selfloop flow, removed 16 redundant places. [2021-12-06 20:09:42,386 INFO L242 Difference]: Finished difference. Result has 195 places, 253 transitions, 1650 flow [2021-12-06 20:09:42,387 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1595, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1650, PETRI_PLACES=195, PETRI_TRANSITIONS=253} [2021-12-06 20:09:42,387 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 77 predicate places. [2021-12-06 20:09:42,387 INFO L470 AbstractCegarLoop]: Abstraction has has 195 places, 253 transitions, 1650 flow [2021-12-06 20:09:42,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:42,388 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:42,388 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:42,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-06 20:09:42,388 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:42,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:42,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1122566405, now seen corresponding path program 26 times [2021-12-06 20:09:42,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:42,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540822548] [2021-12-06 20:09:42,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:42,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:42,523 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 20:09:42,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:42,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540822548] [2021-12-06 20:09:42,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540822548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:42,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:42,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:42,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238524034] [2021-12-06 20:09:42,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:42,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:42,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:42,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:42,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:42,525 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:42,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 253 transitions, 1650 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:42,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:42,525 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:42,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:43,670 INFO L129 PetriNetUnfolder]: 2006/6241 cut-off events. [2021-12-06 20:09:43,670 INFO L130 PetriNetUnfolder]: For 14612/14631 co-relation queries the response was YES. [2021-12-06 20:09:43,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21925 conditions, 6241 events. 2006/6241 cut-off events. For 14612/14631 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 57623 event pairs, 554 based on Foata normal form. 16/6210 useless extension candidates. Maximal degree in co-relation 21882. Up to 2993 conditions per place. [2021-12-06 20:09:43,714 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 394 selfloop transitions, 13 changer transitions 46/516 dead transitions. [2021-12-06 20:09:43,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 516 transitions, 4608 flow [2021-12-06 20:09:43,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:43,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:43,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 896 transitions. [2021-12-06 20:09:43,716 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.708300395256917 [2021-12-06 20:09:43,716 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 896 transitions. [2021-12-06 20:09:43,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 896 transitions. [2021-12-06 20:09:43,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:43,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 896 transitions. [2021-12-06 20:09:43,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 81.45454545454545) internal successors, (896), 11 states have internal predecessors, (896), 0 states have call successors, (0), 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 20:09:43,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:43,718 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:43,718 INFO L186 Difference]: Start difference. First operand has 195 places, 253 transitions, 1650 flow. Second operand 11 states and 896 transitions. [2021-12-06 20:09:43,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 516 transitions, 4608 flow [2021-12-06 20:09:43,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 516 transitions, 4487 flow, removed 29 selfloop flow, removed 10 redundant places. [2021-12-06 20:09:43,776 INFO L242 Difference]: Finished difference. Result has 197 places, 257 transitions, 1664 flow [2021-12-06 20:09:43,776 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1589, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1664, PETRI_PLACES=197, PETRI_TRANSITIONS=257} [2021-12-06 20:09:43,776 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 79 predicate places. [2021-12-06 20:09:43,776 INFO L470 AbstractCegarLoop]: Abstraction has has 197 places, 257 transitions, 1664 flow [2021-12-06 20:09:43,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:43,777 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:43,777 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:43,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-06 20:09:43,777 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:43,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:43,777 INFO L85 PathProgramCache]: Analyzing trace with hash 393468026, now seen corresponding path program 6 times [2021-12-06 20:09:43,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:43,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054374610] [2021-12-06 20:09:43,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:43,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:43,882 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 20:09:43,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:43,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054374610] [2021-12-06 20:09:43,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054374610] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:43,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:43,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:43,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108756304] [2021-12-06 20:09:43,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:43,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:43,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:43,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:43,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:43,884 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:43,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 257 transitions, 1664 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:43,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:43,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:43,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:45,126 INFO L129 PetriNetUnfolder]: 2472/7635 cut-off events. [2021-12-06 20:09:45,126 INFO L130 PetriNetUnfolder]: For 15627/15649 co-relation queries the response was YES. [2021-12-06 20:09:45,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26469 conditions, 7635 events. 2472/7635 cut-off events. For 15627/15649 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 73653 event pairs, 709 based on Foata normal form. 16/7590 useless extension candidates. Maximal degree in co-relation 26427. Up to 2124 conditions per place. [2021-12-06 20:09:45,183 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 553 selfloop transitions, 14 changer transitions 32/662 dead transitions. [2021-12-06 20:09:45,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 662 transitions, 6031 flow [2021-12-06 20:09:45,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:45,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:45,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 916 transitions. [2021-12-06 20:09:45,185 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7241106719367589 [2021-12-06 20:09:45,185 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 916 transitions. [2021-12-06 20:09:45,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 916 transitions. [2021-12-06 20:09:45,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:45,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 916 transitions. [2021-12-06 20:09:45,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.27272727272727) internal successors, (916), 11 states have internal predecessors, (916), 0 states have call successors, (0), 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 20:09:45,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:45,187 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:45,188 INFO L186 Difference]: Start difference. First operand has 197 places, 257 transitions, 1664 flow. Second operand 11 states and 916 transitions. [2021-12-06 20:09:45,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 662 transitions, 6031 flow [2021-12-06 20:09:45,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 662 transitions, 6002 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-12-06 20:09:45,262 INFO L242 Difference]: Finished difference. Result has 203 places, 261 transitions, 1725 flow [2021-12-06 20:09:45,262 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1645, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1725, PETRI_PLACES=203, PETRI_TRANSITIONS=261} [2021-12-06 20:09:45,263 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 85 predicate places. [2021-12-06 20:09:45,263 INFO L470 AbstractCegarLoop]: Abstraction has has 203 places, 261 transitions, 1725 flow [2021-12-06 20:09:45,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:45,263 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:45,263 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:45,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-06 20:09:45,263 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:45,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:45,264 INFO L85 PathProgramCache]: Analyzing trace with hash 469007811, now seen corresponding path program 27 times [2021-12-06 20:09:45,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:45,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328231754] [2021-12-06 20:09:45,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:45,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:45,392 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 20:09:45,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:45,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328231754] [2021-12-06 20:09:45,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328231754] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:45,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:45,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:45,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660638218] [2021-12-06 20:09:45,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:45,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:45,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:45,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:45,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:45,394 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:45,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 261 transitions, 1725 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:45,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:45,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:45,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:46,990 INFO L129 PetriNetUnfolder]: 2950/9211 cut-off events. [2021-12-06 20:09:46,990 INFO L130 PetriNetUnfolder]: For 20422/20457 co-relation queries the response was YES. [2021-12-06 20:09:47,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32151 conditions, 9211 events. 2950/9211 cut-off events. For 20422/20457 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 92925 event pairs, 977 based on Foata normal form. 18/9158 useless extension candidates. Maximal degree in co-relation 32106. Up to 4007 conditions per place. [2021-12-06 20:09:47,059 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 543 selfloop transitions, 15 changer transitions 46/667 dead transitions. [2021-12-06 20:09:47,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 667 transitions, 6140 flow [2021-12-06 20:09:47,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:47,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 914 transitions. [2021-12-06 20:09:47,061 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7225296442687748 [2021-12-06 20:09:47,062 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 914 transitions. [2021-12-06 20:09:47,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 914 transitions. [2021-12-06 20:09:47,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:47,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 914 transitions. [2021-12-06 20:09:47,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.0909090909091) internal successors, (914), 11 states have internal predecessors, (914), 0 states have call successors, (0), 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 20:09:47,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:47,064 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:47,064 INFO L186 Difference]: Start difference. First operand has 203 places, 261 transitions, 1725 flow. Second operand 11 states and 914 transitions. [2021-12-06 20:09:47,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 667 transitions, 6140 flow [2021-12-06 20:09:47,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 667 transitions, 6103 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-12-06 20:09:47,156 INFO L242 Difference]: Finished difference. Result has 210 places, 266 transitions, 1802 flow [2021-12-06 20:09:47,157 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1696, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1802, PETRI_PLACES=210, PETRI_TRANSITIONS=266} [2021-12-06 20:09:47,157 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 92 predicate places. [2021-12-06 20:09:47,157 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 266 transitions, 1802 flow [2021-12-06 20:09:47,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:47,157 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:47,157 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:47,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-06 20:09:47,157 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:47,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:47,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1817975432, now seen corresponding path program 7 times [2021-12-06 20:09:47,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:47,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795697311] [2021-12-06 20:09:47,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:47,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:47,268 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 20:09:47,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:47,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795697311] [2021-12-06 20:09:47,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795697311] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:47,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:47,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:47,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62040002] [2021-12-06 20:09:47,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:47,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:47,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:47,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:47,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:47,270 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:47,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 266 transitions, 1802 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:47,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:47,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:47,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:48,793 INFO L129 PetriNetUnfolder]: 2938/9172 cut-off events. [2021-12-06 20:09:48,794 INFO L130 PetriNetUnfolder]: For 21359/21396 co-relation queries the response was YES. [2021-12-06 20:09:48,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32317 conditions, 9172 events. 2938/9172 cut-off events. For 21359/21396 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 92581 event pairs, 847 based on Foata normal form. 23/9121 useless extension candidates. Maximal degree in co-relation 32268. Up to 2124 conditions per place. [2021-12-06 20:09:48,875 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 554 selfloop transitions, 18 changer transitions 32/667 dead transitions. [2021-12-06 20:09:48,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 667 transitions, 6187 flow [2021-12-06 20:09:48,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:48,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:48,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 915 transitions. [2021-12-06 20:09:48,877 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7233201581027668 [2021-12-06 20:09:48,877 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 915 transitions. [2021-12-06 20:09:48,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 915 transitions. [2021-12-06 20:09:48,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:48,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 915 transitions. [2021-12-06 20:09:48,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.18181818181819) internal successors, (915), 11 states have internal predecessors, (915), 0 states have call successors, (0), 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 20:09:48,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:48,879 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:48,880 INFO L186 Difference]: Start difference. First operand has 210 places, 266 transitions, 1802 flow. Second operand 11 states and 915 transitions. [2021-12-06 20:09:48,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 667 transitions, 6187 flow [2021-12-06 20:09:48,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 667 transitions, 6150 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-12-06 20:09:48,980 INFO L242 Difference]: Finished difference. Result has 218 places, 269 transitions, 1867 flow [2021-12-06 20:09:48,981 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1772, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1867, PETRI_PLACES=218, PETRI_TRANSITIONS=269} [2021-12-06 20:09:48,981 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 100 predicate places. [2021-12-06 20:09:48,981 INFO L470 AbstractCegarLoop]: Abstraction has has 218 places, 269 transitions, 1867 flow [2021-12-06 20:09:48,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:48,981 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:48,981 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:48,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-06 20:09:48,982 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:48,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:48,982 INFO L85 PathProgramCache]: Analyzing trace with hash 621068221, now seen corresponding path program 28 times [2021-12-06 20:09:48,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:48,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341345571] [2021-12-06 20:09:48,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:48,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:49,082 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 20:09:49,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:49,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341345571] [2021-12-06 20:09:49,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341345571] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:49,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:49,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:49,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239300258] [2021-12-06 20:09:49,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:49,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:49,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:49,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:49,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:49,084 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:49,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 269 transitions, 1867 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:49,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:49,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:49,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:50,347 INFO L129 PetriNetUnfolder]: 2458/7772 cut-off events. [2021-12-06 20:09:50,347 INFO L130 PetriNetUnfolder]: For 18677/18696 co-relation queries the response was YES. [2021-12-06 20:09:50,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27418 conditions, 7772 events. 2458/7772 cut-off events. For 18677/18696 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 75840 event pairs, 903 based on Foata normal form. 26/7734 useless extension candidates. Maximal degree in co-relation 27365. Up to 2954 conditions per place. [2021-12-06 20:09:50,405 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 354 selfloop transitions, 11 changer transitions 57/485 dead transitions. [2021-12-06 20:09:50,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 485 transitions, 4406 flow [2021-12-06 20:09:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:50,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:50,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 882 transitions. [2021-12-06 20:09:50,406 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6972332015810276 [2021-12-06 20:09:50,406 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 882 transitions. [2021-12-06 20:09:50,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 882 transitions. [2021-12-06 20:09:50,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:50,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 882 transitions. [2021-12-06 20:09:50,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 80.18181818181819) internal successors, (882), 11 states have internal predecessors, (882), 0 states have call successors, (0), 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 20:09:50,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:50,409 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:50,409 INFO L186 Difference]: Start difference. First operand has 218 places, 269 transitions, 1867 flow. Second operand 11 states and 882 transitions. [2021-12-06 20:09:50,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 485 transitions, 4406 flow [2021-12-06 20:09:50,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 485 transitions, 4353 flow, removed 18 selfloop flow, removed 6 redundant places. [2021-12-06 20:09:50,484 INFO L242 Difference]: Finished difference. Result has 224 places, 265 transitions, 1801 flow [2021-12-06 20:09:50,484 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1796, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1801, PETRI_PLACES=224, PETRI_TRANSITIONS=265} [2021-12-06 20:09:50,484 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 106 predicate places. [2021-12-06 20:09:50,484 INFO L470 AbstractCegarLoop]: Abstraction has has 224 places, 265 transitions, 1801 flow [2021-12-06 20:09:50,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:50,484 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:50,484 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:50,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-06 20:09:50,485 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:50,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:50,485 INFO L85 PathProgramCache]: Analyzing trace with hash -2038855757, now seen corresponding path program 29 times [2021-12-06 20:09:50,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:50,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127062334] [2021-12-06 20:09:50,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:50,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:50,558 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 20:09:50,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:50,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127062334] [2021-12-06 20:09:50,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127062334] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:50,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:50,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:50,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973799997] [2021-12-06 20:09:50,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:50,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:50,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:50,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:50,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:50,560 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:50,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 265 transitions, 1801 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:50,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:50,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:50,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:51,817 INFO L129 PetriNetUnfolder]: 2457/7752 cut-off events. [2021-12-06 20:09:51,817 INFO L130 PetriNetUnfolder]: For 17411/17426 co-relation queries the response was YES. [2021-12-06 20:09:51,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27123 conditions, 7752 events. 2457/7752 cut-off events. For 17411/17426 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 75581 event pairs, 904 based on Foata normal form. 26/7713 useless extension candidates. Maximal degree in co-relation 27068. Up to 2124 conditions per place. [2021-12-06 20:09:51,884 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 525 selfloop transitions, 12 changer transitions 27/627 dead transitions. [2021-12-06 20:09:51,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 627 transitions, 5824 flow [2021-12-06 20:09:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:51,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:51,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 900 transitions. [2021-12-06 20:09:51,886 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7114624505928854 [2021-12-06 20:09:51,886 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 900 transitions. [2021-12-06 20:09:51,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 900 transitions. [2021-12-06 20:09:51,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:51,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 900 transitions. [2021-12-06 20:09:51,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 81.81818181818181) internal successors, (900), 11 states have internal predecessors, (900), 0 states have call successors, (0), 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 20:09:51,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:51,889 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:51,889 INFO L186 Difference]: Start difference. First operand has 224 places, 265 transitions, 1801 flow. Second operand 11 states and 900 transitions. [2021-12-06 20:09:51,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 627 transitions, 5824 flow [2021-12-06 20:09:51,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 627 transitions, 5765 flow, removed 13 selfloop flow, removed 12 redundant places. [2021-12-06 20:09:51,970 INFO L242 Difference]: Finished difference. Result has 220 places, 265 transitions, 1792 flow [2021-12-06 20:09:51,970 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1757, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1792, PETRI_PLACES=220, PETRI_TRANSITIONS=265} [2021-12-06 20:09:51,971 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 102 predicate places. [2021-12-06 20:09:51,971 INFO L470 AbstractCegarLoop]: Abstraction has has 220 places, 265 transitions, 1792 flow [2021-12-06 20:09:51,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:51,971 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:51,971 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:51,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-06 20:09:51,971 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:51,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:51,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1720679165, now seen corresponding path program 30 times [2021-12-06 20:09:51,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:51,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018859440] [2021-12-06 20:09:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:51,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:52,139 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 20:09:52,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:52,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018859440] [2021-12-06 20:09:52,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018859440] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:52,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:52,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:52,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860982681] [2021-12-06 20:09:52,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:52,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:52,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:52,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:52,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:52,140 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:52,141 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 265 transitions, 1792 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:52,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:52,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:52,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:53,524 INFO L129 PetriNetUnfolder]: 2457/7682 cut-off events. [2021-12-06 20:09:53,525 INFO L130 PetriNetUnfolder]: For 17032/17045 co-relation queries the response was YES. [2021-12-06 20:09:53,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26813 conditions, 7682 events. 2457/7682 cut-off events. For 17032/17045 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 74543 event pairs, 815 based on Foata normal form. 14/7632 useless extension candidates. Maximal degree in co-relation 26761. Up to 2124 conditions per place. [2021-12-06 20:09:53,578 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 538 selfloop transitions, 15 changer transitions 45/661 dead transitions. [2021-12-06 20:09:53,578 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 661 transitions, 6126 flow [2021-12-06 20:09:53,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:53,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:53,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 915 transitions. [2021-12-06 20:09:53,580 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7233201581027668 [2021-12-06 20:09:53,580 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 915 transitions. [2021-12-06 20:09:53,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 915 transitions. [2021-12-06 20:09:53,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:53,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 915 transitions. [2021-12-06 20:09:53,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.18181818181819) internal successors, (915), 11 states have internal predecessors, (915), 0 states have call successors, (0), 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 20:09:53,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:53,582 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:53,582 INFO L186 Difference]: Start difference. First operand has 220 places, 265 transitions, 1792 flow. Second operand 11 states and 915 transitions. [2021-12-06 20:09:53,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 661 transitions, 6126 flow [2021-12-06 20:09:53,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 661 transitions, 6082 flow, removed 7 selfloop flow, removed 9 redundant places. [2021-12-06 20:09:53,658 INFO L242 Difference]: Finished difference. Result has 223 places, 267 transitions, 1829 flow [2021-12-06 20:09:53,658 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1760, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1829, PETRI_PLACES=223, PETRI_TRANSITIONS=267} [2021-12-06 20:09:53,658 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 105 predicate places. [2021-12-06 20:09:53,658 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 267 transitions, 1829 flow [2021-12-06 20:09:53,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:53,658 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:53,659 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:53,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-06 20:09:53,659 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:53,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:53,659 INFO L85 PathProgramCache]: Analyzing trace with hash 657394911, now seen corresponding path program 31 times [2021-12-06 20:09:53,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:53,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569802123] [2021-12-06 20:09:53,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:53,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:53,774 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 20:09:53,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:53,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569802123] [2021-12-06 20:09:53,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569802123] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:53,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:53,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:53,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210751056] [2021-12-06 20:09:53,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:53,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:53,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:53,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:53,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:53,776 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:53,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 267 transitions, 1829 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:53,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:53,776 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:53,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:54,830 INFO L129 PetriNetUnfolder]: 1978/6296 cut-off events. [2021-12-06 20:09:54,830 INFO L130 PetriNetUnfolder]: For 13659/13671 co-relation queries the response was YES. [2021-12-06 20:09:54,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21839 conditions, 6296 events. 1978/6296 cut-off events. For 13659/13671 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 58785 event pairs, 750 based on Foata normal form. 26/6269 useless extension candidates. Maximal degree in co-relation 21785. Up to 2124 conditions per place. [2021-12-06 20:09:54,880 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 347 selfloop transitions, 9 changer transitions 58/477 dead transitions. [2021-12-06 20:09:54,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 477 transitions, 4302 flow [2021-12-06 20:09:54,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:54,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:54,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 881 transitions. [2021-12-06 20:09:54,882 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6964426877470355 [2021-12-06 20:09:54,882 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 881 transitions. [2021-12-06 20:09:54,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 881 transitions. [2021-12-06 20:09:54,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:54,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 881 transitions. [2021-12-06 20:09:54,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 80.0909090909091) internal successors, (881), 11 states have internal predecessors, (881), 0 states have call successors, (0), 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 20:09:54,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:54,884 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:54,884 INFO L186 Difference]: Start difference. First operand has 223 places, 267 transitions, 1829 flow. Second operand 11 states and 881 transitions. [2021-12-06 20:09:54,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 477 transitions, 4302 flow [2021-12-06 20:09:54,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 477 transitions, 4273 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-12-06 20:09:54,951 INFO L242 Difference]: Finished difference. Result has 225 places, 259 transitions, 1717 flow [2021-12-06 20:09:54,952 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1776, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1717, PETRI_PLACES=225, PETRI_TRANSITIONS=259} [2021-12-06 20:09:54,952 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 107 predicate places. [2021-12-06 20:09:54,952 INFO L470 AbstractCegarLoop]: Abstraction has has 225 places, 259 transitions, 1717 flow [2021-12-06 20:09:54,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:54,952 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:54,952 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:54,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-06 20:09:54,952 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:54,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:54,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1401616921, now seen corresponding path program 32 times [2021-12-06 20:09:54,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:54,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487628151] [2021-12-06 20:09:54,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:54,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:55,098 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 20:09:55,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:55,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487628151] [2021-12-06 20:09:55,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487628151] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:55,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:55,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:55,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674626213] [2021-12-06 20:09:55,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:55,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:55,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:55,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:55,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:55,100 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:55,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 259 transitions, 1717 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:55,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:55,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:55,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:56,071 INFO L129 PetriNetUnfolder]: 1497/4756 cut-off events. [2021-12-06 20:09:56,071 INFO L130 PetriNetUnfolder]: For 9975/9984 co-relation queries the response was YES. [2021-12-06 20:09:56,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16474 conditions, 4756 events. 1497/4756 cut-off events. For 9975/9984 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 41466 event pairs, 489 based on Foata normal form. 26/4746 useless extension candidates. Maximal degree in co-relation 16421. Up to 2980 conditions per place. [2021-12-06 20:09:56,106 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 202 selfloop transitions, 10 changer transitions 56/331 dead transitions. [2021-12-06 20:09:56,106 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 331 transitions, 2773 flow [2021-12-06 20:09:56,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:56,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:56,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 861 transitions. [2021-12-06 20:09:56,108 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6806324110671936 [2021-12-06 20:09:56,108 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 861 transitions. [2021-12-06 20:09:56,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 861 transitions. [2021-12-06 20:09:56,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:56,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 861 transitions. [2021-12-06 20:09:56,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.27272727272727) internal successors, (861), 11 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:56,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:56,110 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:56,110 INFO L186 Difference]: Start difference. First operand has 225 places, 259 transitions, 1717 flow. Second operand 11 states and 861 transitions. [2021-12-06 20:09:56,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 331 transitions, 2773 flow [2021-12-06 20:09:56,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 331 transitions, 2712 flow, removed 16 selfloop flow, removed 15 redundant places. [2021-12-06 20:09:56,152 INFO L242 Difference]: Finished difference. Result has 212 places, 255 transitions, 1654 flow [2021-12-06 20:09:56,152 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1654, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1654, PETRI_PLACES=212, PETRI_TRANSITIONS=255} [2021-12-06 20:09:56,152 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 94 predicate places. [2021-12-06 20:09:56,152 INFO L470 AbstractCegarLoop]: Abstraction has has 212 places, 255 transitions, 1654 flow [2021-12-06 20:09:56,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:56,152 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:56,152 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:56,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-06 20:09:56,153 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:56,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:56,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1522285324, now seen corresponding path program 8 times [2021-12-06 20:09:56,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:56,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764902466] [2021-12-06 20:09:56,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:56,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:56,261 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 20:09:56,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:56,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764902466] [2021-12-06 20:09:56,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764902466] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:56,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:56,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:56,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422689283] [2021-12-06 20:09:56,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:56,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:56,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:56,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:56,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:56,263 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:56,263 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 255 transitions, 1654 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:56,263 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:56,263 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:56,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:57,134 INFO L129 PetriNetUnfolder]: 1497/4678 cut-off events. [2021-12-06 20:09:57,134 INFO L130 PetriNetUnfolder]: For 9724/9731 co-relation queries the response was YES. [2021-12-06 20:09:57,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16237 conditions, 4678 events. 1497/4678 cut-off events. For 9724/9731 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 40482 event pairs, 452 based on Foata normal form. 14/4657 useless extension candidates. Maximal degree in co-relation 16190. Up to 2033 conditions per place. [2021-12-06 20:09:57,165 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 371 selfloop transitions, 13 changer transitions 58/505 dead transitions. [2021-12-06 20:09:57,165 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 505 transitions, 4465 flow [2021-12-06 20:09:57,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:57,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:57,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 894 transitions. [2021-12-06 20:09:57,167 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7067193675889328 [2021-12-06 20:09:57,167 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 894 transitions. [2021-12-06 20:09:57,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 894 transitions. [2021-12-06 20:09:57,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:57,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 894 transitions. [2021-12-06 20:09:57,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 81.27272727272727) internal successors, (894), 11 states have internal predecessors, (894), 0 states have call successors, (0), 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 20:09:57,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:57,169 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:57,169 INFO L186 Difference]: Start difference. First operand has 212 places, 255 transitions, 1654 flow. Second operand 11 states and 894 transitions. [2021-12-06 20:09:57,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 505 transitions, 4465 flow [2021-12-06 20:09:57,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 505 transitions, 4435 flow, removed 5 selfloop flow, removed 11 redundant places. [2021-12-06 20:09:57,209 INFO L242 Difference]: Finished difference. Result has 208 places, 255 transitions, 1659 flow [2021-12-06 20:09:57,209 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1626, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1659, PETRI_PLACES=208, PETRI_TRANSITIONS=255} [2021-12-06 20:09:57,210 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 90 predicate places. [2021-12-06 20:09:57,210 INFO L470 AbstractCegarLoop]: Abstraction has has 208 places, 255 transitions, 1659 flow [2021-12-06 20:09:57,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:57,210 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:57,210 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:57,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-06 20:09:57,210 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:57,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:57,210 INFO L85 PathProgramCache]: Analyzing trace with hash -584963457, now seen corresponding path program 33 times [2021-12-06 20:09:57,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:57,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952335897] [2021-12-06 20:09:57,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:57,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:57,344 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 20:09:57,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:57,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952335897] [2021-12-06 20:09:57,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952335897] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:57,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:57,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:57,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540912004] [2021-12-06 20:09:57,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:57,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:57,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:57,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:57,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:57,346 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:57,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 255 transitions, 1659 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:57,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:57,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:57,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:58,246 INFO L129 PetriNetUnfolder]: 1483/4732 cut-off events. [2021-12-06 20:09:58,246 INFO L130 PetriNetUnfolder]: For 9893/9902 co-relation queries the response was YES. [2021-12-06 20:09:58,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16337 conditions, 4732 events. 1483/4732 cut-off events. For 9893/9902 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 41345 event pairs, 554 based on Foata normal form. 26/4722 useless extension candidates. Maximal degree in co-relation 16293. Up to 2033 conditions per place. [2021-12-06 20:09:58,277 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 344 selfloop transitions, 10 changer transitions 54/471 dead transitions. [2021-12-06 20:09:58,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 471 transitions, 4165 flow [2021-12-06 20:09:58,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:58,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:58,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 879 transitions. [2021-12-06 20:09:58,279 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6948616600790514 [2021-12-06 20:09:58,279 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 879 transitions. [2021-12-06 20:09:58,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 879 transitions. [2021-12-06 20:09:58,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:58,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 879 transitions. [2021-12-06 20:09:58,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.9090909090909) internal successors, (879), 11 states have internal predecessors, (879), 0 states have call successors, (0), 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 20:09:58,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:58,281 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:58,281 INFO L186 Difference]: Start difference. First operand has 208 places, 255 transitions, 1659 flow. Second operand 11 states and 879 transitions. [2021-12-06 20:09:58,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 471 transitions, 4165 flow [2021-12-06 20:09:58,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 471 transitions, 4129 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-12-06 20:09:58,320 INFO L242 Difference]: Finished difference. Result has 210 places, 255 transitions, 1662 flow [2021-12-06 20:09:58,320 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1631, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1662, PETRI_PLACES=210, PETRI_TRANSITIONS=255} [2021-12-06 20:09:58,320 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 92 predicate places. [2021-12-06 20:09:58,321 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 255 transitions, 1662 flow [2021-12-06 20:09:58,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:58,321 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:58,321 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:58,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-06 20:09:58,321 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:58,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:58,321 INFO L85 PathProgramCache]: Analyzing trace with hash 120475320, now seen corresponding path program 9 times [2021-12-06 20:09:58,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:58,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862765555] [2021-12-06 20:09:58,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:58,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:58,450 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 20:09:58,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:58,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862765555] [2021-12-06 20:09:58,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862765555] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:58,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:58,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:58,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144119005] [2021-12-06 20:09:58,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:58,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:58,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:58,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:58,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:58,451 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:58,452 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 255 transitions, 1662 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:58,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:58,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:58,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:09:59,129 INFO L129 PetriNetUnfolder]: 1017/3291 cut-off events. [2021-12-06 20:09:59,130 INFO L130 PetriNetUnfolder]: For 6477/6483 co-relation queries the response was YES. [2021-12-06 20:09:59,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11248 conditions, 3291 events. 1017/3291 cut-off events. For 6477/6483 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 26154 event pairs, 387 based on Foata normal form. 26/3293 useless extension candidates. Maximal degree in co-relation 11202. Up to 2033 conditions per place. [2021-12-06 20:09:59,151 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 178 selfloop transitions, 7 changer transitions 73/321 dead transitions. [2021-12-06 20:09:59,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 321 transitions, 2654 flow [2021-12-06 20:09:59,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:09:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:09:59,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 860 transitions. [2021-12-06 20:09:59,152 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6798418972332015 [2021-12-06 20:09:59,153 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 860 transitions. [2021-12-06 20:09:59,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 860 transitions. [2021-12-06 20:09:59,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:09:59,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 860 transitions. [2021-12-06 20:09:59,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.18181818181819) internal successors, (860), 11 states have internal predecessors, (860), 0 states have call successors, (0), 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 20:09:59,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:59,154 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:09:59,154 INFO L186 Difference]: Start difference. First operand has 210 places, 255 transitions, 1662 flow. Second operand 11 states and 860 transitions. [2021-12-06 20:09:59,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 321 transitions, 2654 flow [2021-12-06 20:09:59,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 321 transitions, 2622 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-12-06 20:09:59,182 INFO L242 Difference]: Finished difference. Result has 209 places, 247 transitions, 1562 flow [2021-12-06 20:09:59,182 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1614, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1562, PETRI_PLACES=209, PETRI_TRANSITIONS=247} [2021-12-06 20:09:59,182 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 91 predicate places. [2021-12-06 20:09:59,183 INFO L470 AbstractCegarLoop]: Abstraction has has 209 places, 247 transitions, 1562 flow [2021-12-06 20:09:59,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:59,183 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:09:59,183 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:09:59,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-06 20:09:59,183 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:09:59,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:09:59,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1878274346, now seen corresponding path program 10 times [2021-12-06 20:09:59,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:09:59,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867454727] [2021-12-06 20:09:59,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:09:59,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:09:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:09:59,335 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 20:09:59,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:09:59,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867454727] [2021-12-06 20:09:59,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867454727] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:09:59,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:09:59,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:09:59,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534874176] [2021-12-06 20:09:59,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:09:59,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:09:59,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:09:59,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:09:59,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:09:59,337 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:09:59,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 247 transitions, 1562 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:09:59,337 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:09:59,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:09:59,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:10:00,323 INFO L129 PetriNetUnfolder]: 1465/4599 cut-off events. [2021-12-06 20:10:00,324 INFO L130 PetriNetUnfolder]: For 8754/8764 co-relation queries the response was YES. [2021-12-06 20:10:00,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15749 conditions, 4599 events. 1465/4599 cut-off events. For 8754/8764 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 40171 event pairs, 395 based on Foata normal form. 29/4594 useless extension candidates. Maximal degree in co-relation 15705. Up to 1037 conditions per place. [2021-12-06 20:10:00,355 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 538 selfloop transitions, 13 changer transitions 19/633 dead transitions. [2021-12-06 20:10:00,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 633 transitions, 5737 flow [2021-12-06 20:10:00,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:10:00,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:10:00,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 897 transitions. [2021-12-06 20:10:00,356 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7090909090909091 [2021-12-06 20:10:00,356 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 897 transitions. [2021-12-06 20:10:00,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 897 transitions. [2021-12-06 20:10:00,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:10:00,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 897 transitions. [2021-12-06 20:10:00,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 81.54545454545455) internal successors, (897), 11 states have internal predecessors, (897), 0 states have call successors, (0), 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 20:10:00,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:00,358 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:00,358 INFO L186 Difference]: Start difference. First operand has 209 places, 247 transitions, 1562 flow. Second operand 11 states and 897 transitions. [2021-12-06 20:10:00,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 633 transitions, 5737 flow [2021-12-06 20:10:00,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 633 transitions, 5685 flow, removed 9 selfloop flow, removed 13 redundant places. [2021-12-06 20:10:00,396 INFO L242 Difference]: Finished difference. Result has 195 places, 252 transitions, 1607 flow [2021-12-06 20:10:00,396 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1525, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1607, PETRI_PLACES=195, PETRI_TRANSITIONS=252} [2021-12-06 20:10:00,396 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 77 predicate places. [2021-12-06 20:10:00,396 INFO L470 AbstractCegarLoop]: Abstraction has has 195 places, 252 transitions, 1607 flow [2021-12-06 20:10:00,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:00,396 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:10:00,396 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:10:00,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-06 20:10:00,397 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:10:00,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:10:00,397 INFO L85 PathProgramCache]: Analyzing trace with hash 110553545, now seen corresponding path program 34 times [2021-12-06 20:10:00,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:10:00,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224339708] [2021-12-06 20:10:00,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:10:00,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:10:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:10:00,482 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 20:10:00,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:10:00,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224339708] [2021-12-06 20:10:00,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224339708] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:10:00,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:10:00,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:10:00,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708072263] [2021-12-06 20:10:00,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:10:00,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:10:00,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:10:00,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:10:00,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:10:00,484 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:10:00,485 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 252 transitions, 1607 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:00,485 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:10:00,485 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:10:00,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:10:01,243 INFO L129 PetriNetUnfolder]: 1466/4576 cut-off events. [2021-12-06 20:10:01,243 INFO L130 PetriNetUnfolder]: For 9236/9243 co-relation queries the response was YES. [2021-12-06 20:10:01,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15836 conditions, 4576 events. 1466/4576 cut-off events. For 9236/9243 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 39837 event pairs, 186 based on Foata normal form. 18/4561 useless extension candidates. Maximal degree in co-relation 15795. Up to 2496 conditions per place. [2021-12-06 20:10:01,272 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 216 selfloop transitions, 19 changer transitions 45/343 dead transitions. [2021-12-06 20:10:01,272 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 343 transitions, 2825 flow [2021-12-06 20:10:01,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:10:01,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:10:01,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 857 transitions. [2021-12-06 20:10:01,273 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6774703557312253 [2021-12-06 20:10:01,273 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 857 transitions. [2021-12-06 20:10:01,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 857 transitions. [2021-12-06 20:10:01,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:10:01,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 857 transitions. [2021-12-06 20:10:01,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 77.9090909090909) internal successors, (857), 11 states have internal predecessors, (857), 0 states have call successors, (0), 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 20:10:01,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:01,275 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:01,275 INFO L186 Difference]: Start difference. First operand has 195 places, 252 transitions, 1607 flow. Second operand 11 states and 857 transitions. [2021-12-06 20:10:01,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 343 transitions, 2825 flow [2021-12-06 20:10:01,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 343 transitions, 2805 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-12-06 20:10:01,310 INFO L242 Difference]: Finished difference. Result has 201 places, 252 transitions, 1640 flow [2021-12-06 20:10:01,310 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1590, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1640, PETRI_PLACES=201, PETRI_TRANSITIONS=252} [2021-12-06 20:10:01,310 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 83 predicate places. [2021-12-06 20:10:01,311 INFO L470 AbstractCegarLoop]: Abstraction has has 201 places, 252 transitions, 1640 flow [2021-12-06 20:10:01,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:01,311 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:10:01,311 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:10:01,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-06 20:10:01,311 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:10:01,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:10:01,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1607467995, now seen corresponding path program 35 times [2021-12-06 20:10:01,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:10:01,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158646658] [2021-12-06 20:10:01,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:10:01,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:10:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:10:01,412 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 20:10:01,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:10:01,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158646658] [2021-12-06 20:10:01,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158646658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:10:01,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:10:01,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:10:01,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558318060] [2021-12-06 20:10:01,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:10:01,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:10:01,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:10:01,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:10:01,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:10:01,414 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:10:01,415 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 252 transitions, 1640 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:01,415 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:10:01,415 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:10:01,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:10:02,206 INFO L129 PetriNetUnfolder]: 1451/4535 cut-off events. [2021-12-06 20:10:02,207 INFO L130 PetriNetUnfolder]: For 10460/10474 co-relation queries the response was YES. [2021-12-06 20:10:02,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16184 conditions, 4535 events. 1451/4535 cut-off events. For 10460/10474 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 39495 event pairs, 396 based on Foata normal form. 17/4517 useless extension candidates. Maximal degree in co-relation 16141. Up to 1988 conditions per place. [2021-12-06 20:10:02,237 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 371 selfloop transitions, 12 changer transitions 57/503 dead transitions. [2021-12-06 20:10:02,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 503 transitions, 4467 flow [2021-12-06 20:10:02,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:10:02,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:10:02,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 893 transitions. [2021-12-06 20:10:02,239 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7059288537549407 [2021-12-06 20:10:02,239 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 893 transitions. [2021-12-06 20:10:02,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 893 transitions. [2021-12-06 20:10:02,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:10:02,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 893 transitions. [2021-12-06 20:10:02,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 81.18181818181819) internal successors, (893), 11 states have internal predecessors, (893), 0 states have call successors, (0), 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 20:10:02,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:02,241 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:02,241 INFO L186 Difference]: Start difference. First operand has 201 places, 252 transitions, 1640 flow. Second operand 11 states and 893 transitions. [2021-12-06 20:10:02,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 503 transitions, 4467 flow [2021-12-06 20:10:02,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 503 transitions, 4413 flow, removed 1 selfloop flow, removed 10 redundant places. [2021-12-06 20:10:02,278 INFO L242 Difference]: Finished difference. Result has 203 places, 253 transitions, 1645 flow [2021-12-06 20:10:02,278 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1600, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1645, PETRI_PLACES=203, PETRI_TRANSITIONS=253} [2021-12-06 20:10:02,278 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 85 predicate places. [2021-12-06 20:10:02,278 INFO L470 AbstractCegarLoop]: Abstraction has has 203 places, 253 transitions, 1645 flow [2021-12-06 20:10:02,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:02,278 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:10:02,279 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:10:02,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-12-06 20:10:02,279 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:10:02,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:10:02,279 INFO L85 PathProgramCache]: Analyzing trace with hash 2025460037, now seen corresponding path program 36 times [2021-12-06 20:10:02,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:10:02,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100373255] [2021-12-06 20:10:02,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:10:02,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:10:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:10:02,389 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 20:10:02,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:10:02,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100373255] [2021-12-06 20:10:02,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100373255] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:10:02,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:10:02,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:10:02,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847039423] [2021-12-06 20:10:02,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:10:02,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:10:02,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:10:02,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:10:02,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:10:02,391 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:10:02,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 253 transitions, 1645 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:02,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:10:02,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:10:02,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:10:03,065 INFO L129 PetriNetUnfolder]: 959/3115 cut-off events. [2021-12-06 20:10:03,065 INFO L130 PetriNetUnfolder]: For 6900/6910 co-relation queries the response was YES. [2021-12-06 20:10:03,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10947 conditions, 3115 events. 959/3115 cut-off events. For 6900/6910 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 24945 event pairs, 333 based on Foata normal form. 27/3116 useless extension candidates. Maximal degree in co-relation 10902. Up to 1988 conditions per place. [2021-12-06 20:10:03,086 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 180 selfloop transitions, 6 changer transitions 57/306 dead transitions. [2021-12-06 20:10:03,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 306 transitions, 2515 flow [2021-12-06 20:10:03,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:10:03,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:10:03,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 846 transitions. [2021-12-06 20:10:03,088 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6687747035573123 [2021-12-06 20:10:03,088 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 846 transitions. [2021-12-06 20:10:03,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 846 transitions. [2021-12-06 20:10:03,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:10:03,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 846 transitions. [2021-12-06 20:10:03,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.9090909090909) internal successors, (846), 11 states have internal predecessors, (846), 0 states have call successors, (0), 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 20:10:03,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:03,089 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:03,089 INFO L186 Difference]: Start difference. First operand has 203 places, 253 transitions, 1645 flow. Second operand 11 states and 846 transitions. [2021-12-06 20:10:03,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 306 transitions, 2515 flow [2021-12-06 20:10:03,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 306 transitions, 2481 flow, removed 7 selfloop flow, removed 9 redundant places. [2021-12-06 20:10:03,116 INFO L242 Difference]: Finished difference. Result has 206 places, 247 transitions, 1587 flow [2021-12-06 20:10:03,116 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1597, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1587, PETRI_PLACES=206, PETRI_TRANSITIONS=247} [2021-12-06 20:10:03,116 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 88 predicate places. [2021-12-06 20:10:03,116 INFO L470 AbstractCegarLoop]: Abstraction has has 206 places, 247 transitions, 1587 flow [2021-12-06 20:10:03,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:03,116 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:10:03,117 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:10:03,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-12-06 20:10:03,117 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:10:03,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:10:03,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1417312401, now seen corresponding path program 37 times [2021-12-06 20:10:03,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:10:03,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176144849] [2021-12-06 20:10:03,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:10:03,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:10:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:10:03,188 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 20:10:03,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:10:03,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176144849] [2021-12-06 20:10:03,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176144849] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:10:03,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:10:03,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:10:03,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189244779] [2021-12-06 20:10:03,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:10:03,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:10:03,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:10:03,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:10:03,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:10:03,190 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:10:03,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 247 transitions, 1587 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:03,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:10:03,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:10:03,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:10:03,754 INFO L129 PetriNetUnfolder]: 960/3064 cut-off events. [2021-12-06 20:10:03,755 INFO L130 PetriNetUnfolder]: For 7042/7048 co-relation queries the response was YES. [2021-12-06 20:10:03,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10858 conditions, 3064 events. 960/3064 cut-off events. For 7042/7048 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 24403 event pairs, 212 based on Foata normal form. 27/3069 useless extension candidates. Maximal degree in co-relation 10812. Up to 1930 conditions per place. [2021-12-06 20:10:03,775 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 188 selfloop transitions, 10 changer transitions 40/301 dead transitions. [2021-12-06 20:10:03,775 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 301 transitions, 2480 flow [2021-12-06 20:10:03,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:10:03,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:10:03,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 841 transitions. [2021-12-06 20:10:03,777 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6648221343873518 [2021-12-06 20:10:03,777 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 841 transitions. [2021-12-06 20:10:03,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 841 transitions. [2021-12-06 20:10:03,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:10:03,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 841 transitions. [2021-12-06 20:10:03,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.45454545454545) internal successors, (841), 11 states have internal predecessors, (841), 0 states have call successors, (0), 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 20:10:03,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:03,779 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:03,779 INFO L186 Difference]: Start difference. First operand has 206 places, 247 transitions, 1587 flow. Second operand 11 states and 841 transitions. [2021-12-06 20:10:03,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 301 transitions, 2480 flow [2021-12-06 20:10:03,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 301 transitions, 2429 flow, removed 8 selfloop flow, removed 14 redundant places. [2021-12-06 20:10:03,804 INFO L242 Difference]: Finished difference. Result has 197 places, 247 transitions, 1585 flow [2021-12-06 20:10:03,804 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1553, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1585, PETRI_PLACES=197, PETRI_TRANSITIONS=247} [2021-12-06 20:10:03,804 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 79 predicate places. [2021-12-06 20:10:03,804 INFO L470 AbstractCegarLoop]: Abstraction has has 197 places, 247 transitions, 1585 flow [2021-12-06 20:10:03,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:03,804 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:10:03,804 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:10:03,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-06 20:10:03,805 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:10:03,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:10:03,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1503549417, now seen corresponding path program 38 times [2021-12-06 20:10:03,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:10:03,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206292244] [2021-12-06 20:10:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:10:03,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:10:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:10:03,891 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 20:10:03,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:10:03,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206292244] [2021-12-06 20:10:03,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206292244] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:10:03,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:10:03,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:10:03,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673602377] [2021-12-06 20:10:03,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:10:03,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:10:03,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:10:03,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:10:03,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:10:03,892 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:10:03,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 247 transitions, 1585 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:03,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:10:03,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:10:03,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:10:04,326 INFO L129 PetriNetUnfolder]: 505/1665 cut-off events. [2021-12-06 20:10:04,326 INFO L130 PetriNetUnfolder]: For 3768/3773 co-relation queries the response was YES. [2021-12-06 20:10:04,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5878 conditions, 1665 events. 505/1665 cut-off events. For 3768/3773 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 11019 event pairs, 180 based on Foata normal form. 13/1665 useless extension candidates. Maximal degree in co-relation 5836. Up to 1021 conditions per place. [2021-12-06 20:10:04,336 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 172 selfloop transitions, 7 changer transitions 56/298 dead transitions. [2021-12-06 20:10:04,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 298 transitions, 2437 flow [2021-12-06 20:10:04,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:10:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:10:04,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 842 transitions. [2021-12-06 20:10:04,338 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6656126482213439 [2021-12-06 20:10:04,338 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 842 transitions. [2021-12-06 20:10:04,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 842 transitions. [2021-12-06 20:10:04,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:10:04,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 842 transitions. [2021-12-06 20:10:04,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.54545454545455) internal successors, (842), 11 states have internal predecessors, (842), 0 states have call successors, (0), 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 20:10:04,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:04,340 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:04,340 INFO L186 Difference]: Start difference. First operand has 197 places, 247 transitions, 1585 flow. Second operand 11 states and 842 transitions. [2021-12-06 20:10:04,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 298 transitions, 2437 flow [2021-12-06 20:10:04,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 298 transitions, 2394 flow, removed 9 selfloop flow, removed 10 redundant places. [2021-12-06 20:10:04,357 INFO L242 Difference]: Finished difference. Result has 196 places, 242 transitions, 1520 flow [2021-12-06 20:10:04,357 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1533, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1520, PETRI_PLACES=196, PETRI_TRANSITIONS=242} [2021-12-06 20:10:04,357 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 78 predicate places. [2021-12-06 20:10:04,357 INFO L470 AbstractCegarLoop]: Abstraction has has 196 places, 242 transitions, 1520 flow [2021-12-06 20:10:04,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:04,358 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:10:04,358 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:10:04,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-12-06 20:10:04,358 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:10:04,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:10:04,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1136755421, now seen corresponding path program 39 times [2021-12-06 20:10:04,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:10:04,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666149005] [2021-12-06 20:10:04,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:10:04,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:10:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:10:04,433 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 20:10:04,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:10:04,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666149005] [2021-12-06 20:10:04,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666149005] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:10:04,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:10:04,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:10:04,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359461848] [2021-12-06 20:10:04,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:10:04,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:10:04,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:10:04,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:10:04,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:10:04,435 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:10:04,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 242 transitions, 1520 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:04,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:10:04,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:10:04,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:10:04,850 INFO L129 PetriNetUnfolder]: 492/1550 cut-off events. [2021-12-06 20:10:04,850 INFO L130 PetriNetUnfolder]: For 3236/3238 co-relation queries the response was YES. [2021-12-06 20:10:04,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5434 conditions, 1550 events. 492/1550 cut-off events. For 3236/3238 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 9858 event pairs, 126 based on Foata normal form. 13/1552 useless extension candidates. Maximal degree in co-relation 5394. Up to 845 conditions per place. [2021-12-06 20:10:04,859 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 197 selfloop transitions, 11 changer transitions 59/330 dead transitions. [2021-12-06 20:10:04,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 330 transitions, 2694 flow [2021-12-06 20:10:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:10:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:10:04,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 856 transitions. [2021-12-06 20:10:04,861 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6766798418972332 [2021-12-06 20:10:04,861 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 856 transitions. [2021-12-06 20:10:04,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 856 transitions. [2021-12-06 20:10:04,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:10:04,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 856 transitions. [2021-12-06 20:10:04,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 77.81818181818181) internal successors, (856), 11 states have internal predecessors, (856), 0 states have call successors, (0), 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 20:10:04,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:04,863 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:04,863 INFO L186 Difference]: Start difference. First operand has 196 places, 242 transitions, 1520 flow. Second operand 11 states and 856 transitions. [2021-12-06 20:10:04,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 330 transitions, 2694 flow [2021-12-06 20:10:04,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 330 transitions, 2654 flow, removed 11 selfloop flow, removed 10 redundant places. [2021-12-06 20:10:04,878 INFO L242 Difference]: Finished difference. Result has 192 places, 242 transitions, 1523 flow [2021-12-06 20:10:04,878 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1494, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1523, PETRI_PLACES=192, PETRI_TRANSITIONS=242} [2021-12-06 20:10:04,878 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 74 predicate places. [2021-12-06 20:10:04,878 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 242 transitions, 1523 flow [2021-12-06 20:10:04,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:04,878 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 20:10:04,878 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:10:04,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-12-06 20:10:04,879 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-12-06 20:10:04,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:10:04,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1279441689, now seen corresponding path program 40 times [2021-12-06 20:10:04,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:10:04,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524572513] [2021-12-06 20:10:04,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:10:04,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:10:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:10:04,952 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 20:10:04,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:10:04,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524572513] [2021-12-06 20:10:04,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524572513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:10:04,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:10:04,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 20:10:04,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151261865] [2021-12-06 20:10:04,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:10:04,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:10:04,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:10:04,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:10:04,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:10:04,954 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-12-06 20:10:04,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 242 transitions, 1523 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:04,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 20:10:04,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-12-06 20:10:04,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 20:10:05,123 INFO L129 PetriNetUnfolder]: 0/132 cut-off events. [2021-12-06 20:10:05,124 INFO L130 PetriNetUnfolder]: For 232/232 co-relation queries the response was YES. [2021-12-06 20:10:05,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 132 events. 0/132 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 235 event pairs, 0 based on Foata normal form. 26/158 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2021-12-06 20:10:05,124 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 0 selfloop transitions, 0 changer transitions 120/120 dead transitions. [2021-12-06 20:10:05,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 120 transitions, 712 flow [2021-12-06 20:10:05,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:10:05,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 20:10:05,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 808 transitions. [2021-12-06 20:10:05,125 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6387351778656126 [2021-12-06 20:10:05,125 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 808 transitions. [2021-12-06 20:10:05,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 808 transitions. [2021-12-06 20:10:05,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:10:05,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 808 transitions. [2021-12-06 20:10:05,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.45454545454545) internal successors, (808), 11 states have internal predecessors, (808), 0 states have call successors, (0), 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 20:10:05,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:05,127 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 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 20:10:05,127 INFO L186 Difference]: Start difference. First operand has 192 places, 242 transitions, 1523 flow. Second operand 11 states and 808 transitions. [2021-12-06 20:10:05,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 120 transitions, 712 flow [2021-12-06 20:10:05,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 120 transitions, 423 flow, removed 59 selfloop flow, removed 50 redundant places. [2021-12-06 20:10:05,129 INFO L242 Difference]: Finished difference. Result has 135 places, 0 transitions, 0 flow [2021-12-06 20:10:05,129 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=135, PETRI_TRANSITIONS=0} [2021-12-06 20:10:05,129 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 17 predicate places. [2021-12-06 20:10:05,129 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 0 transitions, 0 flow [2021-12-06 20:10:05,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:10:05,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2021-12-06 20:10:05,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2021-12-06 20:10:05,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2021-12-06 20:10:05,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2021-12-06 20:10:05,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2021-12-06 20:10:05,132 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2021-12-06 20:10:05,132 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (6 of 13 remaining) [2021-12-06 20:10:05,132 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2021-12-06 20:10:05,132 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2021-12-06 20:10:05,132 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2021-12-06 20:10:05,132 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2021-12-06 20:10:05,132 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2021-12-06 20:10:05,132 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2021-12-06 20:10:05,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-12-06 20:10:05,135 INFO L732 BasicCegarLoop]: Path program histogram: [40, 10, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:10:05,138 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 20:10:05,138 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:10:05,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:10:05 BasicIcfg [2021-12-06 20:10:05,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:10:05,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:10:05,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:10:05,140 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:10:05,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:08:44" (3/4) ... [2021-12-06 20:10:05,142 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 20:10:05,146 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-12-06 20:10:05,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 20:10:05,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-06 20:10:05,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 20:10:05,172 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 20:10:05,172 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:10:05,172 INFO L158 Benchmark]: Toolchain (without parser) took 81863.06ms. Allocated memory was 98.6MB in the beginning and 2.7GB in the end (delta: 2.6GB). Free memory was 57.9MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 924.8MB. Max. memory is 16.1GB. [2021-12-06 20:10:05,172 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 77.0MB in the beginning and 76.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:10:05,173 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.94ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 45.8MB in the end (delta: 12.0MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2021-12-06 20:10:05,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.52ms. Allocated memory is still 98.6MB. Free memory was 45.8MB in the beginning and 42.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:10:05,173 INFO L158 Benchmark]: Boogie Preprocessor took 34.71ms. Allocated memory is still 98.6MB. Free memory was 42.8MB in the beginning and 75.4MB in the end (delta: -32.7MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2021-12-06 20:10:05,173 INFO L158 Benchmark]: RCFGBuilder took 354.92ms. Allocated memory is still 98.6MB. Free memory was 75.4MB in the beginning and 61.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 20:10:05,173 INFO L158 Benchmark]: TraceAbstraction took 80915.58ms. Allocated memory was 98.6MB in the beginning and 2.7GB in the end (delta: 2.6GB). Free memory was 60.7MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 924.9MB. Max. memory is 16.1GB. [2021-12-06 20:10:05,174 INFO L158 Benchmark]: Witness Printer took 31.71ms. Allocated memory is still 2.7GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:10:05,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 77.0MB in the beginning and 76.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 480.94ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 45.8MB in the end (delta: 12.0MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.52ms. Allocated memory is still 98.6MB. Free memory was 45.8MB in the beginning and 42.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.71ms. Allocated memory is still 98.6MB. Free memory was 42.8MB in the beginning and 75.4MB in the end (delta: -32.7MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * RCFGBuilder took 354.92ms. Allocated memory is still 98.6MB. Free memory was 75.4MB in the beginning and 61.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 80915.58ms. Allocated memory was 98.6MB in the beginning and 2.7GB in the end (delta: 2.6GB). Free memory was 60.7MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 924.9MB. Max. memory is 16.1GB. * Witness Printer took 31.71ms. Allocated memory is still 2.7GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: 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: 1244]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1245]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1229]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1247]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1235]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1235]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1239]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1235]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1235]: 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, 152 locations, 13 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: 80.8s, OverallIterations: 57, TraceHistogramMax: 1, PathProgramHistogramMax: 40, EmptinessCheckTime: 0.0s, AutomataDifference: 73.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14902 SdHoareTripleChecker+Valid, 12.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14902 mSDsluCounter, 18778 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14714 mSDsCounter, 465 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18716 IncrementalHoareTripleChecker+Invalid, 19181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 465 mSolverCounterUnsat, 4160 mSDtfsCounter, 18716 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1006 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 822 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 948 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2172occurred in iteration=20, InterpolantAutomatonStates: 586, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 4049 NumberOfCodeBlocks, 4049 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 3992 ConstructedInterpolants, 0 QuantifiedInterpolants, 20655 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 57 InterpolantComputations, 57 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-06 20:10:05,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7428e5-9231-4ca7-a984-aec131ea8bae/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