./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 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/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_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G --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 0.2.1-dev-7e70bad [2021-11-23 12:18:21,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:18:21,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:18:22,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:18:22,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:18:22,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:18:22,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:18:22,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:18:22,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:18:22,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:18:22,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:18:22,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:18:22,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:18:22,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:18:22,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:18:22,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:18:22,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:18:22,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:18:22,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:18:22,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:18:22,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:18:22,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:18:22,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:18:22,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:18:22,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:18:22,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:18:22,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:18:22,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:18:22,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:18:22,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:18:22,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:18:22,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:18:22,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:18:22,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:18:22,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:18:22,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:18:22,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:18:22,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:18:22,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:18:22,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:18:22,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:18:22,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-23 12:18:22,142 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:18:22,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:18:22,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:18:22,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:18:22,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 12:18:22,149 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 12:18:22,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:18:22,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:18:22,151 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:18:22,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:18:22,153 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:18:22,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 12:18:22,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:18:22,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:18:22,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:18:22,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:18:22,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:18:22,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:18:22,155 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-23 12:18:22,156 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:18:22,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:18:22,156 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:18:22,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:18:22,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:18:22,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:18:22,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:18:22,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:18:22,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:18:22,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:18:22,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:18:22,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:18:22,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:18:22,162 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:18:22,162 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:18:22,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:18:22,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:18:22,163 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_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2021-11-23 12:18:22,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:18:22,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:18:22,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:18:22,593 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:18:22,594 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:18:22,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2021-11-23 12:18:22,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/data/23cab9fb8/90e86c1dd49f406994a9a2394bb76423/FLAG37b024e5e [2021-11-23 12:18:23,440 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:18:23,441 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2021-11-23 12:18:23,468 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/data/23cab9fb8/90e86c1dd49f406994a9a2394bb76423/FLAG37b024e5e [2021-11-23 12:18:23,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/data/23cab9fb8/90e86c1dd49f406994a9a2394bb76423 [2021-11-23 12:18:23,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:18:23,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:18:23,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:18:23,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:18:23,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:18:23,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:18:23" (1/1) ... [2021-11-23 12:18:23,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c9d374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:23, skipping insertion in model container [2021-11-23 12:18:23,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:18:23" (1/1) ... [2021-11-23 12:18:23,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:18:23,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:18:24,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:18:24,594 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:18:24,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:18:24,784 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:18:24,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:24 WrapperNode [2021-11-23 12:18:24,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:18:24,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:18:24,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:18:24,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:18:24,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:24" (1/1) ... [2021-11-23 12:18:24,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:24" (1/1) ... [2021-11-23 12:18:24,895 INFO L137 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 93 [2021-11-23 12:18:24,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:18:24,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:18:24,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:18:24,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:18:24,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:24" (1/1) ... [2021-11-23 12:18:24,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:24" (1/1) ... [2021-11-23 12:18:24,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:24" (1/1) ... [2021-11-23 12:18:24,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:24" (1/1) ... [2021-11-23 12:18:24,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:24" (1/1) ... [2021-11-23 12:18:24,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:24" (1/1) ... [2021-11-23 12:18:24,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:24" (1/1) ... [2021-11-23 12:18:24,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:18:25,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:18:25,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:18:25,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:18:25,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:24" (1/1) ... [2021-11-23 12:18:25,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:18:25,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:18:25,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:18:25,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e8f2852-74fe-4734-a03e-36eff98e6b4a/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:18:25,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 12:18:25,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 12:18:25,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 12:18:25,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 12:18:25,101 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-23 12:18:25,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 12:18:25,102 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-23 12:18:25,102 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-23 12:18:25,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:18:25,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:18:25,105 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 12:18:25,255 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:18:25,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:18:25,715 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:18:25,729 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:18:25,729 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 12:18:25,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:18:25 BoogieIcfgContainer [2021-11-23 12:18:25,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:18:25,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:18:25,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:18:25,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:18:25,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:18:23" (1/3) ... [2021-11-23 12:18:25,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f353fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:18:25, skipping insertion in model container [2021-11-23 12:18:25,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:18:24" (2/3) ... [2021-11-23 12:18:25,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f353fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:18:25, skipping insertion in model container [2021-11-23 12:18:25,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:18:25" (3/3) ... [2021-11-23 12:18:25,748 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2021-11-23 12:18:25,754 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 12:18:25,754 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:18:25,755 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-23 12:18:25,755 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 12:18:25,794 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,794 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,794 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,795 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,795 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,795 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,796 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,796 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,797 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,797 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,797 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,798 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,798 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,798 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,799 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,800 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,800 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,800 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,806 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,807 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,808 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,809 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,818 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,819 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,821 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,821 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,821 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,822 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,822 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,822 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,822 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,823 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,823 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,823 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,824 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,824 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,824 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,825 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,825 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,825 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,826 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,826 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,826 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,826 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,827 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,827 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,827 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,828 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,828 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,829 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,829 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,829 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,829 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,830 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,830 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,830 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,831 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,831 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,831 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,831 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,832 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,832 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,832 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,833 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,833 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,833 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,834 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,834 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,834 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,835 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,835 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,835 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,837 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,838 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~mem32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~s~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_update_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:18:25,852 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 12:18:25,918 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:18:25,928 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 12:18:25,928 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-23 12:18:25,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 115 transitions, 235 flow [2021-11-23 12:18:26,059 INFO L129 PetriNetUnfolder]: 0/114 cut-off events. [2021-11-23 12:18:26,059 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-23 12:18:26,065 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. [2021-11-23 12:18:26,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 115 transitions, 235 flow [2021-11-23 12:18:26,072 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 114 transitions, 231 flow [2021-11-23 12:18:26,077 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-11-23 12:18:26,077 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-23 12:18:26,078 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:26,078 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:18:26,079 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)] === [2021-11-23 12:18:26,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:26,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1485637970, now seen corresponding path program 1 times [2021-11-23 12:18:26,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:26,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147202679] [2021-11-23 12:18:26,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:26,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:26,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:26,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:26,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147202679] [2021-11-23 12:18:26,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147202679] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:26,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:26,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:18:26,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744066174] [2021-11-23 12:18:26,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:26,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:18:26,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:26,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:18:26,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:18:26,506 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 115 [2021-11-23 12:18:26,510 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) [2021-11-23 12:18:26,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:26,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 115 [2021-11-23 12:18:26,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:26,642 INFO L129 PetriNetUnfolder]: 9/263 cut-off events. [2021-11-23 12:18:26,643 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-23 12:18:26,646 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. [2021-11-23 12:18:26,649 INFO L132 encePairwiseOnDemand]: 112/115 looper letters, 13 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2021-11-23 12:18:26,649 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 113 transitions, 259 flow [2021-11-23 12:18:26,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:18:26,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-23 12:18:26,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2021-11-23 12:18:26,669 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9072463768115943 [2021-11-23 12:18:26,670 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2021-11-23 12:18:26,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2021-11-23 12:18:26,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:26,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2021-11-23 12:18:26,682 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) [2021-11-23 12:18:26,690 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) [2021-11-23 12:18:26,691 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) [2021-11-23 12:18:26,694 INFO L186 Difference]: Start difference. First operand has 118 places, 114 transitions, 231 flow. Second operand 3 states and 313 transitions. [2021-11-23 12:18:26,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 113 transitions, 259 flow [2021-11-23 12:18:26,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-23 12:18:26,708 INFO L242 Difference]: Finished difference. Result has 118 places, 113 transitions, 232 flow [2021-11-23 12:18:26,719 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} [2021-11-23 12:18:26,724 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2021-11-23 12:18:26,725 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 232 flow [2021-11-23 12:18:26,725 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) [2021-11-23 12:18:26,725 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:26,725 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:18:26,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 12:18:26,726 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)] === [2021-11-23 12:18:26,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:26,727 INFO L85 PathProgramCache]: Analyzing trace with hash -842156130, now seen corresponding path program 1 times [2021-11-23 12:18:26,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:26,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348830788] [2021-11-23 12:18:26,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:26,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:26,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:26,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348830788] [2021-11-23 12:18:26,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348830788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:26,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:26,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:18:26,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318900015] [2021-11-23 12:18:26,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:26,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:18:26,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:26,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:18:26,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:18:26,811 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 115 [2021-11-23 12:18:26,812 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) [2021-11-23 12:18:26,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:26,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 115 [2021-11-23 12:18:26,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:26,918 INFO L129 PetriNetUnfolder]: 4/216 cut-off events. [2021-11-23 12:18:26,918 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-23 12:18:26,920 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. [2021-11-23 12:18:26,922 INFO L132 encePairwiseOnDemand]: 111/115 looper letters, 8 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2021-11-23 12:18:26,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 110 transitions, 244 flow [2021-11-23 12:18:26,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:18:26,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-23 12:18:26,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2021-11-23 12:18:26,926 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9217391304347826 [2021-11-23 12:18:26,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 318 transitions. [2021-11-23 12:18:26,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 318 transitions. [2021-11-23 12:18:26,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:26,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 318 transitions. [2021-11-23 12:18:26,930 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) [2021-11-23 12:18:26,933 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) [2021-11-23 12:18:26,933 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) [2021-11-23 12:18:26,934 INFO L186 Difference]: Start difference. First operand has 118 places, 113 transitions, 232 flow. Second operand 3 states and 318 transitions. [2021-11-23 12:18:26,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 110 transitions, 244 flow [2021-11-23 12:18:26,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 110 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-23 12:18:26,940 INFO L242 Difference]: Finished difference. Result has 115 places, 110 transitions, 224 flow [2021-11-23 12:18:26,940 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} [2021-11-23 12:18:26,942 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, -3 predicate places. [2021-11-23 12:18:26,942 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 224 flow [2021-11-23 12:18:26,943 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) [2021-11-23 12:18:26,943 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:26,943 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] [2021-11-23 12:18:26,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 12:18:26,944 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)] === [2021-11-23 12:18:26,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:26,945 INFO L85 PathProgramCache]: Analyzing trace with hash 838099336, now seen corresponding path program 1 times [2021-11-23 12:18:26,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:26,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701565041] [2021-11-23 12:18:26,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:26,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:27,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:27,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:27,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701565041] [2021-11-23 12:18:27,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701565041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:27,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:27,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:18:27,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010811504] [2021-11-23 12:18:27,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:27,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 12:18:27,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:27,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 12:18:27,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:18:27,262 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2021-11-23 12:18:27,263 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) [2021-11-23 12:18:27,263 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:27,264 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2021-11-23 12:18:27,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:27,522 INFO L129 PetriNetUnfolder]: 144/632 cut-off events. [2021-11-23 12:18:27,522 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-23 12:18:27,526 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. [2021-11-23 12:18:27,569 INFO L132 encePairwiseOnDemand]: 109/115 looper letters, 31 selfloop transitions, 5 changer transitions 0/109 dead transitions. [2021-11-23 12:18:27,569 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 109 transitions, 294 flow [2021-11-23 12:18:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 12:18:27,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-23 12:18:27,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 505 transitions. [2021-11-23 12:18:27,573 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7318840579710145 [2021-11-23 12:18:27,573 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 505 transitions. [2021-11-23 12:18:27,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 505 transitions. [2021-11-23 12:18:27,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:27,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 505 transitions. [2021-11-23 12:18:27,577 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) [2021-11-23 12:18:27,581 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) [2021-11-23 12:18:27,582 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) [2021-11-23 12:18:27,582 INFO L186 Difference]: Start difference. First operand has 115 places, 110 transitions, 224 flow. Second operand 6 states and 505 transitions. [2021-11-23 12:18:27,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 109 transitions, 294 flow [2021-11-23 12:18:27,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 109 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-23 12:18:27,589 INFO L242 Difference]: Finished difference. Result has 118 places, 109 transitions, 231 flow [2021-11-23 12:18:27,590 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} [2021-11-23 12:18:27,591 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2021-11-23 12:18:27,591 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 109 transitions, 231 flow [2021-11-23 12:18:27,592 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) [2021-11-23 12:18:27,592 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:27,593 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] [2021-11-23 12:18:27,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 12:18:27,593 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)] === [2021-11-23 12:18:27,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:27,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1006176948, now seen corresponding path program 1 times [2021-11-23 12:18:27,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:27,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535978444] [2021-11-23 12:18:27,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:27,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:27,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:27,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:27,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535978444] [2021-11-23 12:18:27,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535978444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:27,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:27,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:18:27,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008088717] [2021-11-23 12:18:27,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:27,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 12:18:27,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:27,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 12:18:27,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:18:27,850 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2021-11-23 12:18:27,852 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) [2021-11-23 12:18:27,852 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:27,852 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2021-11-23 12:18:27,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:28,288 INFO L129 PetriNetUnfolder]: 239/881 cut-off events. [2021-11-23 12:18:28,289 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-23 12:18:28,292 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. [2021-11-23 12:18:28,299 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 68 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2021-11-23 12:18:28,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 163 transitions, 519 flow [2021-11-23 12:18:28,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 12:18:28,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-23 12:18:28,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2021-11-23 12:18:28,303 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8101449275362319 [2021-11-23 12:18:28,303 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 559 transitions. [2021-11-23 12:18:28,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 559 transitions. [2021-11-23 12:18:28,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:28,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 559 transitions. [2021-11-23 12:18:28,306 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) [2021-11-23 12:18:28,309 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) [2021-11-23 12:18:28,310 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) [2021-11-23 12:18:28,310 INFO L186 Difference]: Start difference. First operand has 118 places, 109 transitions, 231 flow. Second operand 6 states and 559 transitions. [2021-11-23 12:18:28,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 163 transitions, 519 flow [2021-11-23 12:18:28,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 163 transitions, 509 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-11-23 12:18:28,319 INFO L242 Difference]: Finished difference. Result has 123 places, 130 transitions, 371 flow [2021-11-23 12:18:28,319 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} [2021-11-23 12:18:28,321 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2021-11-23 12:18:28,321 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 130 transitions, 371 flow [2021-11-23 12:18:28,322 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) [2021-11-23 12:18:28,322 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:28,323 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] [2021-11-23 12:18:28,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 12:18:28,323 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)] === [2021-11-23 12:18:28,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:28,324 INFO L85 PathProgramCache]: Analyzing trace with hash 72490025, now seen corresponding path program 1 times [2021-11-23 12:18:28,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:28,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722819288] [2021-11-23 12:18:28,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:28,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:28,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:28,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:28,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722819288] [2021-11-23 12:18:28,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722819288] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:28,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:28,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:18:28,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993433107] [2021-11-23 12:18:28,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:28,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 12:18:28,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:28,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 12:18:28,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:18:28,565 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2021-11-23 12:18:28,567 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) [2021-11-23 12:18:28,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:28,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2021-11-23 12:18:28,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:29,109 INFO L129 PetriNetUnfolder]: 258/942 cut-off events. [2021-11-23 12:18:29,109 INFO L130 PetriNetUnfolder]: For 283/291 co-relation queries the response was YES. [2021-11-23 12:18:29,113 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. [2021-11-23 12:18:29,120 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 81 selfloop transitions, 26 changer transitions 0/180 dead transitions. [2021-11-23 12:18:29,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 180 transitions, 775 flow [2021-11-23 12:18:29,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 12:18:29,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-23 12:18:29,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2021-11-23 12:18:29,123 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8043478260869565 [2021-11-23 12:18:29,123 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2021-11-23 12:18:29,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2021-11-23 12:18:29,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:29,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2021-11-23 12:18:29,126 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) [2021-11-23 12:18:29,129 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) [2021-11-23 12:18:29,129 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) [2021-11-23 12:18:29,130 INFO L186 Difference]: Start difference. First operand has 123 places, 130 transitions, 371 flow. Second operand 6 states and 555 transitions. [2021-11-23 12:18:29,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 180 transitions, 775 flow [2021-11-23 12:18:29,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 180 transitions, 775 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-23 12:18:29,140 INFO L242 Difference]: Finished difference. Result has 133 places, 151 transitions, 555 flow [2021-11-23 12:18:29,140 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} [2021-11-23 12:18:29,141 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 15 predicate places. [2021-11-23 12:18:29,141 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 151 transitions, 555 flow [2021-11-23 12:18:29,142 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) [2021-11-23 12:18:29,142 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:29,142 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] [2021-11-23 12:18:29,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 12:18:29,143 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)] === [2021-11-23 12:18:29,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:29,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1581779769, now seen corresponding path program 1 times [2021-11-23 12:18:29,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:29,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285633882] [2021-11-23 12:18:29,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:29,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:29,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:29,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:29,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285633882] [2021-11-23 12:18:29,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285633882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:29,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:29,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:18:29,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70904348] [2021-11-23 12:18:29,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:29,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 12:18:29,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:29,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 12:18:29,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:18:29,297 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2021-11-23 12:18:29,298 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) [2021-11-23 12:18:29,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:29,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2021-11-23 12:18:29,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:29,799 INFO L129 PetriNetUnfolder]: 350/1246 cut-off events. [2021-11-23 12:18:29,799 INFO L130 PetriNetUnfolder]: For 650/663 co-relation queries the response was YES. [2021-11-23 12:18:29,806 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. [2021-11-23 12:18:29,814 INFO L132 encePairwiseOnDemand]: 100/115 looper letters, 87 selfloop transitions, 53 changer transitions 4/215 dead transitions. [2021-11-23 12:18:29,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 215 transitions, 1131 flow [2021-11-23 12:18:29,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 12:18:29,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-23 12:18:29,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2021-11-23 12:18:29,818 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7942028985507247 [2021-11-23 12:18:29,818 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2021-11-23 12:18:29,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2021-11-23 12:18:29,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:29,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2021-11-23 12:18:29,821 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) [2021-11-23 12:18:29,824 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) [2021-11-23 12:18:29,824 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) [2021-11-23 12:18:29,824 INFO L186 Difference]: Start difference. First operand has 133 places, 151 transitions, 555 flow. Second operand 6 states and 548 transitions. [2021-11-23 12:18:29,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 215 transitions, 1131 flow [2021-11-23 12:18:29,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 215 transitions, 1131 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-23 12:18:29,839 INFO L242 Difference]: Finished difference. Result has 143 places, 198 transitions, 1037 flow [2021-11-23 12:18:29,839 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} [2021-11-23 12:18:29,840 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2021-11-23 12:18:29,841 INFO L470 AbstractCegarLoop]: Abstraction has has 143 places, 198 transitions, 1037 flow [2021-11-23 12:18:29,841 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) [2021-11-23 12:18:29,841 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:29,841 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] [2021-11-23 12:18:29,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 12:18:29,842 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)] === [2021-11-23 12:18:29,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:29,843 INFO L85 PathProgramCache]: Analyzing trace with hash 138758537, now seen corresponding path program 1 times [2021-11-23 12:18:29,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:29,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682145386] [2021-11-23 12:18:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:29,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:29,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:29,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:29,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682145386] [2021-11-23 12:18:29,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682145386] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:29,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:29,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:18:29,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216362975] [2021-11-23 12:18:29,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:29,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 12:18:29,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:29,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 12:18:29,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:18:29,981 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2021-11-23 12:18:29,983 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) [2021-11-23 12:18:29,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:29,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2021-11-23 12:18:29,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:30,569 INFO L129 PetriNetUnfolder]: 442/1426 cut-off events. [2021-11-23 12:18:30,569 INFO L130 PetriNetUnfolder]: For 1586/1596 co-relation queries the response was YES. [2021-11-23 12:18:30,577 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. [2021-11-23 12:18:30,587 INFO L132 encePairwiseOnDemand]: 100/115 looper letters, 124 selfloop transitions, 58 changer transitions 15/269 dead transitions. [2021-11-23 12:18:30,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 269 transitions, 1849 flow [2021-11-23 12:18:30,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 12:18:30,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-23 12:18:30,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2021-11-23 12:18:30,591 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7942028985507247 [2021-11-23 12:18:30,591 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2021-11-23 12:18:30,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2021-11-23 12:18:30,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:30,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2021-11-23 12:18:30,594 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) [2021-11-23 12:18:30,597 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) [2021-11-23 12:18:30,598 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) [2021-11-23 12:18:30,598 INFO L186 Difference]: Start difference. First operand has 143 places, 198 transitions, 1037 flow. Second operand 6 states and 548 transitions. [2021-11-23 12:18:30,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 269 transitions, 1849 flow [2021-11-23 12:18:30,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 269 transitions, 1785 flow, removed 32 selfloop flow, removed 0 redundant places. [2021-11-23 12:18:30,624 INFO L242 Difference]: Finished difference. Result has 153 places, 242 transitions, 1529 flow [2021-11-23 12:18:30,625 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} [2021-11-23 12:18:30,626 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 35 predicate places. [2021-11-23 12:18:30,626 INFO L470 AbstractCegarLoop]: Abstraction has has 153 places, 242 transitions, 1529 flow [2021-11-23 12:18:30,627 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) [2021-11-23 12:18:30,627 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:30,628 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] [2021-11-23 12:18:30,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 12:18:30,628 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)] === [2021-11-23 12:18:30,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:30,629 INFO L85 PathProgramCache]: Analyzing trace with hash 404626218, now seen corresponding path program 1 times [2021-11-23 12:18:30,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:30,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90052527] [2021-11-23 12:18:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:30,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:31,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:31,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:31,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90052527] [2021-11-23 12:18:31,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90052527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:31,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:31,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:18:31,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181778953] [2021-11-23 12:18:31,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:31,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:18:31,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:31,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:18:31,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:18:31,271 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:18:31,273 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) [2021-11-23 12:18:31,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:31,273 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:18:31,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:32,801 INFO L129 PetriNetUnfolder]: 637/1906 cut-off events. [2021-11-23 12:18:32,802 INFO L130 PetriNetUnfolder]: For 3322/3322 co-relation queries the response was YES. [2021-11-23 12:18:32,819 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. [2021-11-23 12:18:32,835 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 253 selfloop transitions, 9 changer transitions 66/391 dead transitions. [2021-11-23 12:18:32,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 391 transitions, 3097 flow [2021-11-23 12:18:32,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:18:32,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:18:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 917 transitions. [2021-11-23 12:18:32,841 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.724901185770751 [2021-11-23 12:18:32,841 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 917 transitions. [2021-11-23 12:18:32,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 917 transitions. [2021-11-23 12:18:32,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:32,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 917 transitions. [2021-11-23 12:18:32,846 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) [2021-11-23 12:18:32,850 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) [2021-11-23 12:18:32,851 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) [2021-11-23 12:18:32,852 INFO L186 Difference]: Start difference. First operand has 153 places, 242 transitions, 1529 flow. Second operand 11 states and 917 transitions. [2021-11-23 12:18:32,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 391 transitions, 3097 flow [2021-11-23 12:18:32,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 391 transitions, 3029 flow, removed 34 selfloop flow, removed 0 redundant places. [2021-11-23 12:18:32,900 INFO L242 Difference]: Finished difference. Result has 167 places, 242 transitions, 1490 flow [2021-11-23 12:18:32,901 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} [2021-11-23 12:18:32,902 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 49 predicate places. [2021-11-23 12:18:32,902 INFO L470 AbstractCegarLoop]: Abstraction has has 167 places, 242 transitions, 1490 flow [2021-11-23 12:18:32,903 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) [2021-11-23 12:18:32,903 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:32,903 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] [2021-11-23 12:18:32,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 12:18:32,904 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)] === [2021-11-23 12:18:32,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:32,905 INFO L85 PathProgramCache]: Analyzing trace with hash 419805406, now seen corresponding path program 2 times [2021-11-23 12:18:32,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:32,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152431451] [2021-11-23 12:18:32,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:32,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:33,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:33,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:33,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152431451] [2021-11-23 12:18:33,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152431451] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:33,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:33,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:18:33,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180429578] [2021-11-23 12:18:33,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:33,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:18:33,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:33,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:18:33,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:18:33,454 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:18:33,456 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) [2021-11-23 12:18:33,456 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:33,456 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:18:33,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:34,862 INFO L129 PetriNetUnfolder]: 613/1834 cut-off events. [2021-11-23 12:18:34,862 INFO L130 PetriNetUnfolder]: For 3308/3309 co-relation queries the response was YES. [2021-11-23 12:18:34,875 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. [2021-11-23 12:18:34,889 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 240 selfloop transitions, 9 changer transitions 75/387 dead transitions. [2021-11-23 12:18:34,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 387 transitions, 3094 flow [2021-11-23 12:18:34,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:18:34,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:18:34,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 913 transitions. [2021-11-23 12:18:34,895 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7217391304347827 [2021-11-23 12:18:34,895 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 913 transitions. [2021-11-23 12:18:34,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 913 transitions. [2021-11-23 12:18:34,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:34,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 913 transitions. [2021-11-23 12:18:34,900 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) [2021-11-23 12:18:34,904 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) [2021-11-23 12:18:34,905 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) [2021-11-23 12:18:34,906 INFO L186 Difference]: Start difference. First operand has 167 places, 242 transitions, 1490 flow. Second operand 11 states and 913 transitions. [2021-11-23 12:18:34,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 387 transitions, 3094 flow [2021-11-23 12:18:34,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 387 transitions, 3037 flow, removed 3 selfloop flow, removed 9 redundant places. [2021-11-23 12:18:34,953 INFO L242 Difference]: Finished difference. Result has 169 places, 242 transitions, 1498 flow [2021-11-23 12:18:34,954 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} [2021-11-23 12:18:34,955 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 51 predicate places. [2021-11-23 12:18:34,955 INFO L470 AbstractCegarLoop]: Abstraction has has 169 places, 242 transitions, 1498 flow [2021-11-23 12:18:34,956 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) [2021-11-23 12:18:34,956 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:34,956 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:18:34,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 12:18:34,957 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)] === [2021-11-23 12:18:34,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:34,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1125267259, now seen corresponding path program 1 times [2021-11-23 12:18:34,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:34,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647751956] [2021-11-23 12:18:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:34,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:35,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:35,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:35,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647751956] [2021-11-23 12:18:35,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647751956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:35,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:35,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:18:35,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695400361] [2021-11-23 12:18:35,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:35,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:18:35,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:35,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:18:35,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:18:35,472 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:18:35,475 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) [2021-11-23 12:18:35,476 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:35,476 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:18:35,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:37,303 INFO L129 PetriNetUnfolder]: 1077/3291 cut-off events. [2021-11-23 12:18:37,304 INFO L130 PetriNetUnfolder]: For 6125/6130 co-relation queries the response was YES. [2021-11-23 12:18:37,332 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. [2021-11-23 12:18:37,356 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 403 selfloop transitions, 10 changer transitions 58/534 dead transitions. [2021-11-23 12:18:37,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 534 transitions, 4599 flow [2021-11-23 12:18:37,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:18:37,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:18:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 929 transitions. [2021-11-23 12:18:37,362 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7343873517786561 [2021-11-23 12:18:37,362 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 929 transitions. [2021-11-23 12:18:37,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 929 transitions. [2021-11-23 12:18:37,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:37,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 929 transitions. [2021-11-23 12:18:37,367 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) [2021-11-23 12:18:37,371 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) [2021-11-23 12:18:37,374 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) [2021-11-23 12:18:37,374 INFO L186 Difference]: Start difference. First operand has 169 places, 242 transitions, 1498 flow. Second operand 11 states and 929 transitions. [2021-11-23 12:18:37,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 534 transitions, 4599 flow [2021-11-23 12:18:37,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 534 transitions, 4541 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-11-23 12:18:37,509 INFO L242 Difference]: Finished difference. Result has 172 places, 246 transitions, 1540 flow [2021-11-23 12:18:37,510 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} [2021-11-23 12:18:37,513 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 54 predicate places. [2021-11-23 12:18:37,513 INFO L470 AbstractCegarLoop]: Abstraction has has 172 places, 246 transitions, 1540 flow [2021-11-23 12:18:37,515 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) [2021-11-23 12:18:37,516 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:37,516 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] [2021-11-23 12:18:37,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 12:18:37,516 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)] === [2021-11-23 12:18:37,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:37,517 INFO L85 PathProgramCache]: Analyzing trace with hash 616115588, now seen corresponding path program 3 times [2021-11-23 12:18:37,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:37,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676194700] [2021-11-23 12:18:37,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:37,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:37,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:37,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:37,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676194700] [2021-11-23 12:18:37,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676194700] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:37,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:37,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:18:37,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730913596] [2021-11-23 12:18:37,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:37,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:18:37,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:37,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:18:37,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:18:37,980 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:18:37,982 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) [2021-11-23 12:18:37,982 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:37,982 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:18:37,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:40,016 INFO L129 PetriNetUnfolder]: 1569/4685 cut-off events. [2021-11-23 12:18:40,016 INFO L130 PetriNetUnfolder]: For 9875/9896 co-relation queries the response was YES. [2021-11-23 12:18:40,136 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. [2021-11-23 12:18:40,167 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 407 selfloop transitions, 11 changer transitions 59/540 dead transitions. [2021-11-23 12:18:40,168 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 540 transitions, 4682 flow [2021-11-23 12:18:40,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:18:40,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:18:40,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 929 transitions. [2021-11-23 12:18:40,173 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7343873517786561 [2021-11-23 12:18:40,173 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 929 transitions. [2021-11-23 12:18:40,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 929 transitions. [2021-11-23 12:18:40,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:40,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 929 transitions. [2021-11-23 12:18:40,179 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) [2021-11-23 12:18:40,183 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) [2021-11-23 12:18:40,184 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) [2021-11-23 12:18:40,184 INFO L186 Difference]: Start difference. First operand has 172 places, 246 transitions, 1540 flow. Second operand 11 states and 929 transitions. [2021-11-23 12:18:40,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 540 transitions, 4682 flow [2021-11-23 12:18:40,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 540 transitions, 4643 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-11-23 12:18:40,269 INFO L242 Difference]: Finished difference. Result has 178 places, 250 transitions, 1594 flow [2021-11-23 12:18:40,269 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} [2021-11-23 12:18:40,270 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 60 predicate places. [2021-11-23 12:18:40,270 INFO L470 AbstractCegarLoop]: Abstraction has has 178 places, 250 transitions, 1594 flow [2021-11-23 12:18:40,271 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) [2021-11-23 12:18:40,271 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:40,271 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] [2021-11-23 12:18:40,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 12:18:40,272 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)] === [2021-11-23 12:18:40,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:40,273 INFO L85 PathProgramCache]: Analyzing trace with hash 338218795, now seen corresponding path program 2 times [2021-11-23 12:18:40,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:40,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237680399] [2021-11-23 12:18:40,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:40,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:40,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:40,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237680399] [2021-11-23 12:18:40,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237680399] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:40,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:40,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:18:40,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299464469] [2021-11-23 12:18:40,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:40,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:18:40,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:40,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:18:40,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:18:40,683 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:18:40,685 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) [2021-11-23 12:18:40,685 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:40,685 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:18:40,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:43,057 INFO L129 PetriNetUnfolder]: 2075/6373 cut-off events. [2021-11-23 12:18:43,058 INFO L130 PetriNetUnfolder]: For 14250/14274 co-relation queries the response was YES. [2021-11-23 12:18:43,100 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. [2021-11-23 12:18:43,125 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 556 selfloop transitions, 12 changer transitions 59/690 dead transitions. [2021-11-23 12:18:43,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 690 transitions, 6240 flow [2021-11-23 12:18:43,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:18:43,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:18:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2021-11-23 12:18:43,131 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7494071146245059 [2021-11-23 12:18:43,131 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2021-11-23 12:18:43,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2021-11-23 12:18:43,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:43,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2021-11-23 12:18:43,136 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) [2021-11-23 12:18:43,140 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) [2021-11-23 12:18:43,141 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) [2021-11-23 12:18:43,141 INFO L186 Difference]: Start difference. First operand has 178 places, 250 transitions, 1594 flow. Second operand 11 states and 948 transitions. [2021-11-23 12:18:43,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 690 transitions, 6240 flow [2021-11-23 12:18:43,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 690 transitions, 6195 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-11-23 12:18:43,273 INFO L242 Difference]: Finished difference. Result has 185 places, 255 transitions, 1662 flow [2021-11-23 12:18:43,273 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} [2021-11-23 12:18:43,274 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 67 predicate places. [2021-11-23 12:18:43,274 INFO L470 AbstractCegarLoop]: Abstraction has has 185 places, 255 transitions, 1662 flow [2021-11-23 12:18:43,275 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) [2021-11-23 12:18:43,275 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:43,275 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:18:43,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 12:18:43,276 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)] === [2021-11-23 12:18:43,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1567739230, now seen corresponding path program 4 times [2021-11-23 12:18:43,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:43,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191551608] [2021-11-23 12:18:43,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:43,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:43,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:43,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:43,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191551608] [2021-11-23 12:18:43,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191551608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:43,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:43,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:18:43,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333053180] [2021-11-23 12:18:43,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:43,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:18:43,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:43,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:18:43,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:18:43,762 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:18:43,763 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) [2021-11-23 12:18:43,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:43,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:18:43,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:46,409 INFO L129 PetriNetUnfolder]: 2582/7868 cut-off events. [2021-11-23 12:18:46,409 INFO L130 PetriNetUnfolder]: For 18952/18997 co-relation queries the response was YES. [2021-11-23 12:18:46,457 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. [2021-11-23 12:18:46,486 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 561 selfloop transitions, 13 changer transitions 60/697 dead transitions. [2021-11-23 12:18:46,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 697 transitions, 6365 flow [2021-11-23 12:18:46,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:18:46,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:18:46,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2021-11-23 12:18:46,492 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7494071146245059 [2021-11-23 12:18:46,492 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2021-11-23 12:18:46,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2021-11-23 12:18:46,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:46,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2021-11-23 12:18:46,497 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) [2021-11-23 12:18:46,501 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) [2021-11-23 12:18:46,502 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) [2021-11-23 12:18:46,502 INFO L186 Difference]: Start difference. First operand has 185 places, 255 transitions, 1662 flow. Second operand 11 states and 948 transitions. [2021-11-23 12:18:46,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 697 transitions, 6365 flow [2021-11-23 12:18:46,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 697 transitions, 6325 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-11-23 12:18:46,687 INFO L242 Difference]: Finished difference. Result has 193 places, 260 transitions, 1732 flow [2021-11-23 12:18:46,688 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} [2021-11-23 12:18:46,689 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 75 predicate places. [2021-11-23 12:18:46,690 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 260 transitions, 1732 flow [2021-11-23 12:18:46,690 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) [2021-11-23 12:18:46,690 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:46,691 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] [2021-11-23 12:18:46,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 12:18:46,691 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)] === [2021-11-23 12:18:46,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:46,692 INFO L85 PathProgramCache]: Analyzing trace with hash -977437929, now seen corresponding path program 3 times [2021-11-23 12:18:46,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:46,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566518345] [2021-11-23 12:18:46,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:46,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:47,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:47,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:47,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566518345] [2021-11-23 12:18:47,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566518345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:47,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:47,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:18:47,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184651761] [2021-11-23 12:18:47,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:47,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:18:47,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:47,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:18:47,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:18:47,123 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:18:47,124 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) [2021-11-23 12:18:47,125 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:47,125 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:18:47,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:50,083 INFO L129 PetriNetUnfolder]: 3120/9604 cut-off events. [2021-11-23 12:18:50,083 INFO L130 PetriNetUnfolder]: For 24472/24523 co-relation queries the response was YES. [2021-11-23 12:18:50,152 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. [2021-11-23 12:18:50,190 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 565 selfloop transitions, 14 changer transitions 58/700 dead transitions. [2021-11-23 12:18:50,190 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 700 transitions, 6437 flow [2021-11-23 12:18:50,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:18:50,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:18:50,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 950 transitions. [2021-11-23 12:18:50,195 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7509881422924901 [2021-11-23 12:18:50,195 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 950 transitions. [2021-11-23 12:18:50,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 950 transitions. [2021-11-23 12:18:50,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:50,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 950 transitions. [2021-11-23 12:18:50,199 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) [2021-11-23 12:18:50,203 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) [2021-11-23 12:18:50,204 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) [2021-11-23 12:18:50,204 INFO L186 Difference]: Start difference. First operand has 193 places, 260 transitions, 1732 flow. Second operand 11 states and 950 transitions. [2021-11-23 12:18:50,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 700 transitions, 6437 flow [2021-11-23 12:18:50,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 700 transitions, 6395 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-11-23 12:18:50,447 INFO L242 Difference]: Finished difference. Result has 202 places, 266 transitions, 1824 flow [2021-11-23 12:18:50,448 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} [2021-11-23 12:18:50,449 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 84 predicate places. [2021-11-23 12:18:50,449 INFO L470 AbstractCegarLoop]: Abstraction has has 202 places, 266 transitions, 1824 flow [2021-11-23 12:18:50,450 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) [2021-11-23 12:18:50,450 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:50,450 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] [2021-11-23 12:18:50,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 12:18:50,450 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)] === [2021-11-23 12:18:50,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:50,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1713003958, now seen corresponding path program 5 times [2021-11-23 12:18:50,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:50,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073690172] [2021-11-23 12:18:50,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:50,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:51,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:51,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:51,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073690172] [2021-11-23 12:18:51,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073690172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:51,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:51,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:18:51,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879625023] [2021-11-23 12:18:51,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:51,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:18:51,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:51,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:18:51,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:18:51,139 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:18:51,141 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) [2021-11-23 12:18:51,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:51,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:18:51,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:54,025 INFO L129 PetriNetUnfolder]: 3109/9544 cut-off events. [2021-11-23 12:18:54,025 INFO L130 PetriNetUnfolder]: For 25323/25387 co-relation queries the response was YES. [2021-11-23 12:18:54,098 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. [2021-11-23 12:18:54,131 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 421 selfloop transitions, 19 changer transitions 60/563 dead transitions. [2021-11-23 12:18:54,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 563 transitions, 5109 flow [2021-11-23 12:18:54,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:18:54,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:18:54,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 930 transitions. [2021-11-23 12:18:54,135 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7351778656126482 [2021-11-23 12:18:54,135 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 930 transitions. [2021-11-23 12:18:54,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 930 transitions. [2021-11-23 12:18:54,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:54,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 930 transitions. [2021-11-23 12:18:54,139 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) [2021-11-23 12:18:54,143 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) [2021-11-23 12:18:54,144 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) [2021-11-23 12:18:54,144 INFO L186 Difference]: Start difference. First operand has 202 places, 266 transitions, 1824 flow. Second operand 11 states and 930 transitions. [2021-11-23 12:18:54,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 563 transitions, 5109 flow [2021-11-23 12:18:54,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 563 transitions, 5051 flow, removed 24 selfloop flow, removed 5 redundant places. [2021-11-23 12:18:54,385 INFO L242 Difference]: Finished difference. Result has 211 places, 269 transitions, 1883 flow [2021-11-23 12:18:54,387 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} [2021-11-23 12:18:54,387 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 93 predicate places. [2021-11-23 12:18:54,387 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 269 transitions, 1883 flow [2021-11-23 12:18:54,388 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) [2021-11-23 12:18:54,388 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:54,389 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] [2021-11-23 12:18:54,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 12:18:54,389 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)] === [2021-11-23 12:18:54,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:54,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1502186247, now seen corresponding path program 4 times [2021-11-23 12:18:54,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:54,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286931927] [2021-11-23 12:18:54,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:54,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:54,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:54,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:54,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286931927] [2021-11-23 12:18:54,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286931927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:54,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:54,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:18:54,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165693870] [2021-11-23 12:18:54,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:54,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:18:54,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:54,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:18:54,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:18:54,799 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:18:54,800 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) [2021-11-23 12:18:54,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:54,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:18:54,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:18:57,920 INFO L129 PetriNetUnfolder]: 3096/9455 cut-off events. [2021-11-23 12:18:57,920 INFO L130 PetriNetUnfolder]: For 25381/25411 co-relation queries the response was YES. [2021-11-23 12:18:58,008 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. [2021-11-23 12:18:58,047 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 410 selfloop transitions, 19 changer transitions 73/565 dead transitions. [2021-11-23 12:18:58,048 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 565 transitions, 5153 flow [2021-11-23 12:18:58,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:18:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:18:58,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 930 transitions. [2021-11-23 12:18:58,052 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7351778656126482 [2021-11-23 12:18:58,052 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 930 transitions. [2021-11-23 12:18:58,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 930 transitions. [2021-11-23 12:18:58,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:18:58,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 930 transitions. [2021-11-23 12:18:58,057 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) [2021-11-23 12:18:58,061 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) [2021-11-23 12:18:58,062 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) [2021-11-23 12:18:58,062 INFO L186 Difference]: Start difference. First operand has 211 places, 269 transitions, 1883 flow. Second operand 11 states and 930 transitions. [2021-11-23 12:18:58,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 565 transitions, 5153 flow [2021-11-23 12:18:58,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 565 transitions, 5021 flow, removed 22 selfloop flow, removed 10 redundant places. [2021-11-23 12:18:58,448 INFO L242 Difference]: Finished difference. Result has 215 places, 272 transitions, 1890 flow [2021-11-23 12:18:58,448 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} [2021-11-23 12:18:58,449 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 97 predicate places. [2021-11-23 12:18:58,449 INFO L470 AbstractCegarLoop]: Abstraction has has 215 places, 272 transitions, 1890 flow [2021-11-23 12:18:58,450 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) [2021-11-23 12:18:58,450 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:18:58,450 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] [2021-11-23 12:18:58,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 12:18:58,451 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)] === [2021-11-23 12:18:58,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:18:58,452 INFO L85 PathProgramCache]: Analyzing trace with hash 85719459, now seen corresponding path program 5 times [2021-11-23 12:18:58,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:18:58,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169378058] [2021-11-23 12:18:58,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:18:58,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:18:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:18:58,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:18:58,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:18:58,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169378058] [2021-11-23 12:18:58,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169378058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:18:58,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:18:58,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:18:58,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715962036] [2021-11-23 12:18:58,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:18:58,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:18:58,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:18:58,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:18:58,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:18:58,842 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:18:58,843 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) [2021-11-23 12:18:58,844 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:18:58,844 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:18:58,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:01,952 INFO L129 PetriNetUnfolder]: 3548/11010 cut-off events. [2021-11-23 12:19:01,952 INFO L130 PetriNetUnfolder]: For 25915/25942 co-relation queries the response was YES. [2021-11-23 12:19:02,052 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. [2021-11-23 12:19:02,084 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 729 selfloop transitions, 16 changer transitions 44/852 dead transitions. [2021-11-23 12:19:02,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 852 transitions, 8085 flow [2021-11-23 12:19:02,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:02,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:02,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 968 transitions. [2021-11-23 12:19:02,089 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7652173913043478 [2021-11-23 12:19:02,089 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 968 transitions. [2021-11-23 12:19:02,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 968 transitions. [2021-11-23 12:19:02,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:02,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 968 transitions. [2021-11-23 12:19:02,093 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) [2021-11-23 12:19:02,096 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) [2021-11-23 12:19:02,098 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) [2021-11-23 12:19:02,098 INFO L186 Difference]: Start difference. First operand has 215 places, 272 transitions, 1890 flow. Second operand 11 states and 968 transitions. [2021-11-23 12:19:02,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 852 transitions, 8085 flow [2021-11-23 12:19:02,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 852 transitions, 8026 flow, removed 21 selfloop flow, removed 6 redundant places. [2021-11-23 12:19:02,524 INFO L242 Difference]: Finished difference. Result has 221 places, 276 transitions, 1955 flow [2021-11-23 12:19:02,524 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} [2021-11-23 12:19:02,525 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 103 predicate places. [2021-11-23 12:19:02,525 INFO L470 AbstractCegarLoop]: Abstraction has has 221 places, 276 transitions, 1955 flow [2021-11-23 12:19:02,526 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) [2021-11-23 12:19:02,526 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:02,527 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] [2021-11-23 12:19:02,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 12:19:02,527 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)] === [2021-11-23 12:19:02,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:02,528 INFO L85 PathProgramCache]: Analyzing trace with hash 735707487, now seen corresponding path program 6 times [2021-11-23 12:19:02,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:02,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163046975] [2021-11-23 12:19:02,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:02,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:02,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:02,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:02,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163046975] [2021-11-23 12:19:02,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163046975] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:02,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:02,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:02,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224479662] [2021-11-23 12:19:02,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:02,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:02,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:02,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:02,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:02,916 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:02,928 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) [2021-11-23 12:19:02,928 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:02,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:02,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:06,704 INFO L129 PetriNetUnfolder]: 4012/12414 cut-off events. [2021-11-23 12:19:06,704 INFO L130 PetriNetUnfolder]: For 30063/30091 co-relation queries the response was YES. [2021-11-23 12:19:06,817 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. [2021-11-23 12:19:06,848 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 576 selfloop transitions, 17 changer transitions 60/716 dead transitions. [2021-11-23 12:19:06,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 716 transitions, 6708 flow [2021-11-23 12:19:06,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:06,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:06,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2021-11-23 12:19:06,851 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7494071146245059 [2021-11-23 12:19:06,851 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2021-11-23 12:19:06,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2021-11-23 12:19:06,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:06,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2021-11-23 12:19:06,855 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) [2021-11-23 12:19:06,858 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) [2021-11-23 12:19:06,859 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) [2021-11-23 12:19:06,859 INFO L186 Difference]: Start difference. First operand has 221 places, 276 transitions, 1955 flow. Second operand 11 states and 948 transitions. [2021-11-23 12:19:06,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 716 transitions, 6708 flow [2021-11-23 12:19:07,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 716 transitions, 6669 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-11-23 12:19:07,129 INFO L242 Difference]: Finished difference. Result has 227 places, 280 transitions, 2025 flow [2021-11-23 12:19:07,129 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} [2021-11-23 12:19:07,130 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 109 predicate places. [2021-11-23 12:19:07,130 INFO L470 AbstractCegarLoop]: Abstraction has has 227 places, 280 transitions, 2025 flow [2021-11-23 12:19:07,130 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) [2021-11-23 12:19:07,130 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:07,131 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] [2021-11-23 12:19:07,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 12:19:07,131 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)] === [2021-11-23 12:19:07,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:07,131 INFO L85 PathProgramCache]: Analyzing trace with hash -291347527, now seen corresponding path program 7 times [2021-11-23 12:19:07,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:07,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813134135] [2021-11-23 12:19:07,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:07,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:07,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:07,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813134135] [2021-11-23 12:19:07,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813134135] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:07,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:07,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:07,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441594369] [2021-11-23 12:19:07,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:07,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:07,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:07,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:07,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:07,514 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:07,515 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) [2021-11-23 12:19:07,515 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:07,515 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:07,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:11,502 INFO L129 PetriNetUnfolder]: 4491/13988 cut-off events. [2021-11-23 12:19:11,502 INFO L130 PetriNetUnfolder]: For 36472/36518 co-relation queries the response was YES. [2021-11-23 12:19:11,651 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. [2021-11-23 12:19:11,686 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 881 selfloop transitions, 18 changer transitions 44/1006 dead transitions. [2021-11-23 12:19:11,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 1006 transitions, 9729 flow [2021-11-23 12:19:11,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:11,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 986 transitions. [2021-11-23 12:19:11,689 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7794466403162056 [2021-11-23 12:19:11,690 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 986 transitions. [2021-11-23 12:19:11,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 986 transitions. [2021-11-23 12:19:11,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:11,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 986 transitions. [2021-11-23 12:19:11,693 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) [2021-11-23 12:19:11,696 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) [2021-11-23 12:19:11,697 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) [2021-11-23 12:19:11,697 INFO L186 Difference]: Start difference. First operand has 227 places, 280 transitions, 2025 flow. Second operand 11 states and 986 transitions. [2021-11-23 12:19:11,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 1006 transitions, 9729 flow [2021-11-23 12:19:12,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 1006 transitions, 9690 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-11-23 12:19:12,251 INFO L242 Difference]: Finished difference. Result has 234 places, 285 transitions, 2122 flow [2021-11-23 12:19:12,252 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} [2021-11-23 12:19:12,252 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 116 predicate places. [2021-11-23 12:19:12,253 INFO L470 AbstractCegarLoop]: Abstraction has has 234 places, 285 transitions, 2122 flow [2021-11-23 12:19:12,253 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) [2021-11-23 12:19:12,253 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:12,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:19:12,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 12:19:12,254 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)] === [2021-11-23 12:19:12,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:12,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1854484877, now seen corresponding path program 8 times [2021-11-23 12:19:12,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:12,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750105179] [2021-11-23 12:19:12,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:12,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:12,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:12,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:12,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750105179] [2021-11-23 12:19:12,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750105179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:12,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:12,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:12,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137195359] [2021-11-23 12:19:12,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:12,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:12,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:12,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:12,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:12,636 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:12,638 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) [2021-11-23 12:19:12,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:12,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:12,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:17,047 INFO L129 PetriNetUnfolder]: 4479/13937 cut-off events. [2021-11-23 12:19:17,047 INFO L130 PetriNetUnfolder]: For 37724/37770 co-relation queries the response was YES. [2021-11-23 12:19:17,191 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. [2021-11-23 12:19:17,226 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 574 selfloop transitions, 21 changer transitions 60/718 dead transitions. [2021-11-23 12:19:17,226 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 718 transitions, 6862 flow [2021-11-23 12:19:17,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:17,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:17,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 947 transitions. [2021-11-23 12:19:17,229 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7486166007905138 [2021-11-23 12:19:17,229 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 947 transitions. [2021-11-23 12:19:17,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 947 transitions. [2021-11-23 12:19:17,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:17,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 947 transitions. [2021-11-23 12:19:17,233 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) [2021-11-23 12:19:17,235 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) [2021-11-23 12:19:17,236 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) [2021-11-23 12:19:17,236 INFO L186 Difference]: Start difference. First operand has 234 places, 285 transitions, 2122 flow. Second operand 11 states and 947 transitions. [2021-11-23 12:19:17,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 718 transitions, 6862 flow [2021-11-23 12:19:17,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 718 transitions, 6815 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-11-23 12:19:17,567 INFO L242 Difference]: Finished difference. Result has 241 places, 287 transitions, 2172 flow [2021-11-23 12:19:17,568 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} [2021-11-23 12:19:17,568 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 123 predicate places. [2021-11-23 12:19:17,569 INFO L470 AbstractCegarLoop]: Abstraction has has 241 places, 287 transitions, 2172 flow [2021-11-23 12:19:17,569 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) [2021-11-23 12:19:17,569 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:17,570 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] [2021-11-23 12:19:17,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-23 12:19:17,570 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)] === [2021-11-23 12:19:17,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:17,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1002020323, now seen corresponding path program 9 times [2021-11-23 12:19:17,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:17,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270299031] [2021-11-23 12:19:17,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:17,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:17,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:17,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270299031] [2021-11-23 12:19:17,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270299031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:17,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:17,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:17,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888029760] [2021-11-23 12:19:17,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:17,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:17,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:17,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:17,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:17,928 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:17,929 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) [2021-11-23 12:19:17,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:17,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:17,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:21,705 INFO L129 PetriNetUnfolder]: 3988/12444 cut-off events. [2021-11-23 12:19:21,705 INFO L130 PetriNetUnfolder]: For 34029/34069 co-relation queries the response was YES. [2021-11-23 12:19:21,838 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. [2021-11-23 12:19:21,869 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 544 selfloop transitions, 15 changer transitions 57/679 dead transitions. [2021-11-23 12:19:21,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 679 transitions, 6521 flow [2021-11-23 12:19:21,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:21,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:21,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 934 transitions. [2021-11-23 12:19:21,871 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7383399209486166 [2021-11-23 12:19:21,872 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 934 transitions. [2021-11-23 12:19:21,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 934 transitions. [2021-11-23 12:19:21,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:21,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 934 transitions. [2021-11-23 12:19:21,874 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) [2021-11-23 12:19:21,876 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) [2021-11-23 12:19:21,877 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) [2021-11-23 12:19:21,877 INFO L186 Difference]: Start difference. First operand has 241 places, 287 transitions, 2172 flow. Second operand 11 states and 934 transitions. [2021-11-23 12:19:21,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 679 transitions, 6521 flow [2021-11-23 12:19:22,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 679 transitions, 6426 flow, removed 16 selfloop flow, removed 11 redundant places. [2021-11-23 12:19:22,176 INFO L242 Difference]: Finished difference. Result has 242 places, 282 transitions, 2059 flow [2021-11-23 12:19:22,176 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} [2021-11-23 12:19:22,177 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 124 predicate places. [2021-11-23 12:19:22,177 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 282 transitions, 2059 flow [2021-11-23 12:19:22,178 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) [2021-11-23 12:19:22,178 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:22,178 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] [2021-11-23 12:19:22,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-23 12:19:22,178 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)] === [2021-11-23 12:19:22,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:22,179 INFO L85 PathProgramCache]: Analyzing trace with hash -326382251, now seen corresponding path program 10 times [2021-11-23 12:19:22,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:22,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156877777] [2021-11-23 12:19:22,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:22,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:22,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:22,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:22,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156877777] [2021-11-23 12:19:22,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156877777] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:22,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:22,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:22,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743867400] [2021-11-23 12:19:22,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:22,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:22,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:22,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:22,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:22,494 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:22,495 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) [2021-11-23 12:19:22,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:22,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:22,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:25,965 INFO L129 PetriNetUnfolder]: 3985/12386 cut-off events. [2021-11-23 12:19:25,965 INFO L130 PetriNetUnfolder]: For 31479/31507 co-relation queries the response was YES. [2021-11-23 12:19:26,105 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. [2021-11-23 12:19:26,136 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 718 selfloop transitions, 18 changer transitions 57/856 dead transitions. [2021-11-23 12:19:26,137 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 856 transitions, 8209 flow [2021-11-23 12:19:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:26,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 967 transitions. [2021-11-23 12:19:26,139 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7644268774703558 [2021-11-23 12:19:26,139 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 967 transitions. [2021-11-23 12:19:26,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 967 transitions. [2021-11-23 12:19:26,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:26,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 967 transitions. [2021-11-23 12:19:26,141 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) [2021-11-23 12:19:26,144 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) [2021-11-23 12:19:26,145 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) [2021-11-23 12:19:26,145 INFO L186 Difference]: Start difference. First operand has 242 places, 282 transitions, 2059 flow. Second operand 11 states and 967 transitions. [2021-11-23 12:19:26,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 856 transitions, 8209 flow [2021-11-23 12:19:26,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 856 transitions, 8133 flow, removed 14 selfloop flow, removed 14 redundant places. [2021-11-23 12:19:26,432 INFO L242 Difference]: Finished difference. Result has 237 places, 284 transitions, 2084 flow [2021-11-23 12:19:26,433 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} [2021-11-23 12:19:26,433 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 119 predicate places. [2021-11-23 12:19:26,433 INFO L470 AbstractCegarLoop]: Abstraction has has 237 places, 284 transitions, 2084 flow [2021-11-23 12:19:26,434 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) [2021-11-23 12:19:26,434 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:26,434 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] [2021-11-23 12:19:26,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-23 12:19:26,434 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)] === [2021-11-23 12:19:26,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:26,434 INFO L85 PathProgramCache]: Analyzing trace with hash -535518311, now seen corresponding path program 11 times [2021-11-23 12:19:26,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:26,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23417723] [2021-11-23 12:19:26,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:26,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:26,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:26,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23417723] [2021-11-23 12:19:26,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23417723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:26,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:26,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:26,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229292890] [2021-11-23 12:19:26,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:26,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:26,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:26,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:26,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:26,825 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:26,827 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) [2021-11-23 12:19:26,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:26,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:26,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:31,061 INFO L129 PetriNetUnfolder]: 3971/12465 cut-off events. [2021-11-23 12:19:31,062 INFO L130 PetriNetUnfolder]: For 31530/31557 co-relation queries the response was YES. [2021-11-23 12:19:31,186 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. [2021-11-23 12:19:31,216 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 691 selfloop transitions, 15 changer transitions 53/822 dead transitions. [2021-11-23 12:19:31,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 822 transitions, 7913 flow [2021-11-23 12:19:31,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:31,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:31,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 952 transitions. [2021-11-23 12:19:31,218 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7525691699604743 [2021-11-23 12:19:31,219 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 952 transitions. [2021-11-23 12:19:31,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 952 transitions. [2021-11-23 12:19:31,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:31,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 952 transitions. [2021-11-23 12:19:31,220 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) [2021-11-23 12:19:31,223 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) [2021-11-23 12:19:31,223 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) [2021-11-23 12:19:31,223 INFO L186 Difference]: Start difference. First operand has 237 places, 284 transitions, 2084 flow. Second operand 11 states and 952 transitions. [2021-11-23 12:19:31,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 822 transitions, 7913 flow [2021-11-23 12:19:31,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 822 transitions, 7872 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-11-23 12:19:31,480 INFO L242 Difference]: Finished difference. Result has 242 places, 284 transitions, 2092 flow [2021-11-23 12:19:31,480 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} [2021-11-23 12:19:31,481 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 124 predicate places. [2021-11-23 12:19:31,481 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 284 transitions, 2092 flow [2021-11-23 12:19:31,481 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) [2021-11-23 12:19:31,481 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:31,482 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] [2021-11-23 12:19:31,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-23 12:19:31,482 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)] === [2021-11-23 12:19:31,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:31,482 INFO L85 PathProgramCache]: Analyzing trace with hash 402569375, now seen corresponding path program 12 times [2021-11-23 12:19:31,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:31,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105033843] [2021-11-23 12:19:31,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:31,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:31,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:31,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105033843] [2021-11-23 12:19:31,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105033843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:31,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:31,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:31,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307273229] [2021-11-23 12:19:31,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:31,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:31,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:31,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:31,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:31,833 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:31,834 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) [2021-11-23 12:19:31,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:31,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:31,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:35,032 INFO L129 PetriNetUnfolder]: 3505/11020 cut-off events. [2021-11-23 12:19:35,032 INFO L130 PetriNetUnfolder]: For 27541/27565 co-relation queries the response was YES. [2021-11-23 12:19:35,162 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. [2021-11-23 12:19:35,194 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 526 selfloop transitions, 12 changer transitions 71/672 dead transitions. [2021-11-23 12:19:35,194 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 672 transitions, 6385 flow [2021-11-23 12:19:35,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:35,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:35,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 933 transitions. [2021-11-23 12:19:35,198 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7375494071146245 [2021-11-23 12:19:35,198 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 933 transitions. [2021-11-23 12:19:35,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 933 transitions. [2021-11-23 12:19:35,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:35,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 933 transitions. [2021-11-23 12:19:35,201 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) [2021-11-23 12:19:35,205 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) [2021-11-23 12:19:35,205 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) [2021-11-23 12:19:35,206 INFO L186 Difference]: Start difference. First operand has 242 places, 284 transitions, 2092 flow. Second operand 11 states and 933 transitions. [2021-11-23 12:19:35,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 672 transitions, 6385 flow [2021-11-23 12:19:35,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 672 transitions, 6347 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-11-23 12:19:35,460 INFO L242 Difference]: Finished difference. Result has 242 places, 276 transitions, 1971 flow [2021-11-23 12:19:35,461 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} [2021-11-23 12:19:35,462 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 124 predicate places. [2021-11-23 12:19:35,462 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 276 transitions, 1971 flow [2021-11-23 12:19:35,463 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) [2021-11-23 12:19:35,463 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:35,463 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] [2021-11-23 12:19:35,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-23 12:19:35,464 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)] === [2021-11-23 12:19:35,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:35,464 INFO L85 PathProgramCache]: Analyzing trace with hash 133274947, now seen corresponding path program 13 times [2021-11-23 12:19:35,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:35,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470166721] [2021-11-23 12:19:35,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:35,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:35,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:35,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:35,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470166721] [2021-11-23 12:19:35,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470166721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:35,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:35,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:35,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21446841] [2021-11-23 12:19:35,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:35,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:35,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:35,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:35,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:35,835 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:35,837 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) [2021-11-23 12:19:35,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:35,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:35,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:38,726 INFO L129 PetriNetUnfolder]: 3040/9425 cut-off events. [2021-11-23 12:19:38,726 INFO L130 PetriNetUnfolder]: For 22905/22932 co-relation queries the response was YES. [2021-11-23 12:19:38,839 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. [2021-11-23 12:19:38,863 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 379 selfloop transitions, 12 changer transitions 70/524 dead transitions. [2021-11-23 12:19:38,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 524 transitions, 4789 flow [2021-11-23 12:19:38,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:38,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 913 transitions. [2021-11-23 12:19:38,866 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7217391304347827 [2021-11-23 12:19:38,866 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 913 transitions. [2021-11-23 12:19:38,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 913 transitions. [2021-11-23 12:19:38,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:38,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 913 transitions. [2021-11-23 12:19:38,868 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) [2021-11-23 12:19:38,871 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) [2021-11-23 12:19:38,872 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) [2021-11-23 12:19:38,872 INFO L186 Difference]: Start difference. First operand has 242 places, 276 transitions, 1971 flow. Second operand 11 states and 913 transitions. [2021-11-23 12:19:38,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 524 transitions, 4789 flow [2021-11-23 12:19:39,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 524 transitions, 4745 flow, removed 6 selfloop flow, removed 11 redundant places. [2021-11-23 12:19:39,099 INFO L242 Difference]: Finished difference. Result has 233 places, 272 transitions, 1899 flow [2021-11-23 12:19:39,100 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} [2021-11-23 12:19:39,101 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 115 predicate places. [2021-11-23 12:19:39,101 INFO L470 AbstractCegarLoop]: Abstraction has has 233 places, 272 transitions, 1899 flow [2021-11-23 12:19:39,102 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) [2021-11-23 12:19:39,102 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:39,102 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] [2021-11-23 12:19:39,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-23 12:19:39,102 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)] === [2021-11-23 12:19:39,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:39,103 INFO L85 PathProgramCache]: Analyzing trace with hash 938766387, now seen corresponding path program 14 times [2021-11-23 12:19:39,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:39,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239664789] [2021-11-23 12:19:39,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:39,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:39,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:39,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:39,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239664789] [2021-11-23 12:19:39,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239664789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:39,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:39,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:39,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417506320] [2021-11-23 12:19:39,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:39,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:39,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:39,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:39,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:39,437 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:39,438 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) [2021-11-23 12:19:39,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:39,439 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:39,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:41,908 INFO L129 PetriNetUnfolder]: 3038/9492 cut-off events. [2021-11-23 12:19:41,908 INFO L130 PetriNetUnfolder]: For 22385/22404 co-relation queries the response was YES. [2021-11-23 12:19:42,029 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. [2021-11-23 12:19:42,059 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 536 selfloop transitions, 13 changer transitions 54/666 dead transitions. [2021-11-23 12:19:42,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 666 transitions, 6227 flow [2021-11-23 12:19:42,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:42,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 931 transitions. [2021-11-23 12:19:42,062 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7359683794466403 [2021-11-23 12:19:42,063 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 931 transitions. [2021-11-23 12:19:42,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 931 transitions. [2021-11-23 12:19:42,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:42,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 931 transitions. [2021-11-23 12:19:42,065 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) [2021-11-23 12:19:42,068 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) [2021-11-23 12:19:42,069 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) [2021-11-23 12:19:42,069 INFO L186 Difference]: Start difference. First operand has 233 places, 272 transitions, 1899 flow. Second operand 11 states and 931 transitions. [2021-11-23 12:19:42,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 666 transitions, 6227 flow [2021-11-23 12:19:42,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 666 transitions, 6170 flow, removed 11 selfloop flow, removed 12 redundant places. [2021-11-23 12:19:42,301 INFO L242 Difference]: Finished difference. Result has 229 places, 272 transitions, 1894 flow [2021-11-23 12:19:42,302 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} [2021-11-23 12:19:42,303 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 111 predicate places. [2021-11-23 12:19:42,303 INFO L470 AbstractCegarLoop]: Abstraction has has 229 places, 272 transitions, 1894 flow [2021-11-23 12:19:42,303 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) [2021-11-23 12:19:42,304 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:42,304 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] [2021-11-23 12:19:42,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-23 12:19:42,304 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)] === [2021-11-23 12:19:42,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:42,305 INFO L85 PathProgramCache]: Analyzing trace with hash -875688455, now seen corresponding path program 15 times [2021-11-23 12:19:42,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:42,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811274391] [2021-11-23 12:19:42,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:42,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:42,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:42,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:42,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811274391] [2021-11-23 12:19:42,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811274391] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:42,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:42,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:42,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580793839] [2021-11-23 12:19:42,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:42,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:42,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:42,663 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:42,665 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) [2021-11-23 12:19:42,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:42,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:42,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:45,323 INFO L129 PetriNetUnfolder]: 3037/9417 cut-off events. [2021-11-23 12:19:45,323 INFO L130 PetriNetUnfolder]: For 22109/22131 co-relation queries the response was YES. [2021-11-23 12:19:45,439 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. [2021-11-23 12:19:45,468 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 549 selfloop transitions, 16 changer transitions 72/700 dead transitions. [2021-11-23 12:19:45,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 700 transitions, 6525 flow [2021-11-23 12:19:45,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:45,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 946 transitions. [2021-11-23 12:19:45,471 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7478260869565218 [2021-11-23 12:19:45,472 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 946 transitions. [2021-11-23 12:19:45,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 946 transitions. [2021-11-23 12:19:45,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:45,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 946 transitions. [2021-11-23 12:19:45,475 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) [2021-11-23 12:19:45,478 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) [2021-11-23 12:19:45,479 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) [2021-11-23 12:19:45,479 INFO L186 Difference]: Start difference. First operand has 229 places, 272 transitions, 1894 flow. Second operand 11 states and 946 transitions. [2021-11-23 12:19:45,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 700 transitions, 6525 flow [2021-11-23 12:19:45,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 700 transitions, 6479 flow, removed 7 selfloop flow, removed 9 redundant places. [2021-11-23 12:19:45,708 INFO L242 Difference]: Finished difference. Result has 232 places, 274 transitions, 1931 flow [2021-11-23 12:19:45,709 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} [2021-11-23 12:19:45,709 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 114 predicate places. [2021-11-23 12:19:45,710 INFO L470 AbstractCegarLoop]: Abstraction has has 232 places, 274 transitions, 1931 flow [2021-11-23 12:19:45,710 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) [2021-11-23 12:19:45,710 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:45,711 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] [2021-11-23 12:19:45,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-23 12:19:45,711 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)] === [2021-11-23 12:19:45,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:45,712 INFO L85 PathProgramCache]: Analyzing trace with hash 268979899, now seen corresponding path program 16 times [2021-11-23 12:19:45,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:45,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725532785] [2021-11-23 12:19:45,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:45,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:46,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:46,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:46,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725532785] [2021-11-23 12:19:46,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725532785] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:46,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:46,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:46,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948141639] [2021-11-23 12:19:46,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:46,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:46,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:46,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:46,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:46,093 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:46,094 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) [2021-11-23 12:19:46,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:46,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:46,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:48,554 INFO L129 PetriNetUnfolder]: 2558/8052 cut-off events. [2021-11-23 12:19:48,555 INFO L130 PetriNetUnfolder]: For 18879/18897 co-relation queries the response was YES. [2021-11-23 12:19:48,650 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. [2021-11-23 12:19:48,672 INFO L132 encePairwiseOnDemand]: 104/115 looper letters, 357 selfloop transitions, 10 changer transitions 86/516 dead transitions. [2021-11-23 12:19:48,672 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 516 transitions, 4708 flow [2021-11-23 12:19:48,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:48,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:48,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 912 transitions. [2021-11-23 12:19:48,675 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7209486166007905 [2021-11-23 12:19:48,675 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 912 transitions. [2021-11-23 12:19:48,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 912 transitions. [2021-11-23 12:19:48,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:48,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 912 transitions. [2021-11-23 12:19:48,678 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) [2021-11-23 12:19:48,680 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) [2021-11-23 12:19:48,680 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) [2021-11-23 12:19:48,680 INFO L186 Difference]: Start difference. First operand has 232 places, 274 transitions, 1931 flow. Second operand 11 states and 912 transitions. [2021-11-23 12:19:48,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 516 transitions, 4708 flow [2021-11-23 12:19:48,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 516 transitions, 4681 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-11-23 12:19:48,841 INFO L242 Difference]: Finished difference. Result has 234 places, 266 transitions, 1824 flow [2021-11-23 12:19:48,842 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} [2021-11-23 12:19:48,842 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 116 predicate places. [2021-11-23 12:19:48,842 INFO L470 AbstractCegarLoop]: Abstraction has has 234 places, 266 transitions, 1824 flow [2021-11-23 12:19:48,843 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) [2021-11-23 12:19:48,843 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:48,843 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] [2021-11-23 12:19:48,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-23 12:19:48,844 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)] === [2021-11-23 12:19:48,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:48,844 INFO L85 PathProgramCache]: Analyzing trace with hash -762412859, now seen corresponding path program 17 times [2021-11-23 12:19:48,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:48,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576042175] [2021-11-23 12:19:48,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:48,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:49,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:49,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:49,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576042175] [2021-11-23 12:19:49,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576042175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:49,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:49,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:49,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007708961] [2021-11-23 12:19:49,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:49,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:49,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:49,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:49,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:49,187 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:49,188 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) [2021-11-23 12:19:49,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:49,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:49,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:19:52,014 INFO L129 PetriNetUnfolder]: 3008/9287 cut-off events. [2021-11-23 12:19:52,015 INFO L130 PetriNetUnfolder]: For 22074/22107 co-relation queries the response was YES. [2021-11-23 12:19:52,123 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. [2021-11-23 12:19:52,149 INFO L132 encePairwiseOnDemand]: 102/115 looper letters, 733 selfloop transitions, 17 changer transitions 34/847 dead transitions. [2021-11-23 12:19:52,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 847 transitions, 8007 flow [2021-11-23 12:19:52,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:19:52,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:19:52,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 965 transitions. [2021-11-23 12:19:52,151 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7628458498023716 [2021-11-23 12:19:52,151 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 965 transitions. [2021-11-23 12:19:52,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 965 transitions. [2021-11-23 12:19:52,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:19:52,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 965 transitions. [2021-11-23 12:19:52,153 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) [2021-11-23 12:19:52,155 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) [2021-11-23 12:19:52,156 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) [2021-11-23 12:19:52,156 INFO L186 Difference]: Start difference. First operand has 234 places, 266 transitions, 1824 flow. Second operand 11 states and 965 transitions. [2021-11-23 12:19:52,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 847 transitions, 8007 flow [2021-11-23 12:19:52,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 847 transitions, 7942 flow, removed 15 selfloop flow, removed 14 redundant places. [2021-11-23 12:19:52,400 INFO L242 Difference]: Finished difference. Result has 219 places, 271 transitions, 1890 flow [2021-11-23 12:19:52,401 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} [2021-11-23 12:19:52,402 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 101 predicate places. [2021-11-23 12:19:52,402 INFO L470 AbstractCegarLoop]: Abstraction has has 219 places, 271 transitions, 1890 flow [2021-11-23 12:19:52,403 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) [2021-11-23 12:19:52,403 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:19:52,403 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] [2021-11-23 12:19:52,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-23 12:19:52,403 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)] === [2021-11-23 12:19:52,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:19:52,404 INFO L85 PathProgramCache]: Analyzing trace with hash 571629491, now seen corresponding path program 18 times [2021-11-23 12:19:52,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:19:52,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925243297] [2021-11-23 12:19:52,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:19:52,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:19:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:19:52,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:19:52,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:19:52,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925243297] [2021-11-23 12:19:52,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925243297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:19:52,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:19:52,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 12:19:52,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141743506] [2021-11-23 12:19:52,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:19:52,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 12:19:52,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:19:52,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 12:19:52,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-23 12:19:52,738 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2021-11-23 12:19:52,739 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) [2021-11-23 12:19:52,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:19:52,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2021-11-23 12:19:52,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand