./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/35_double_lock_p3_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/35_double_lock_p3_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8 --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 6710ae2bfe9a41273181e1b4b9dbdfa98f0dea6daffb771915892955eccb69dd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:25:31,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:25:31,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:25:31,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:25:31,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:25:31,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:25:31,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:25:31,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:25:31,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:25:31,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:25:31,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:25:31,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:25:31,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:25:31,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:25:31,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:25:31,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:25:31,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:25:31,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:25:31,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:25:31,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:25:31,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:25:31,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:25:31,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:25:31,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:25:31,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:25:31,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:25:31,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:25:31,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:25:31,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:25:31,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:25:31,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:25:31,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:25:31,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:25:31,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:25:31,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:25:31,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:25:31,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:25:31,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:25:31,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:25:31,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:25:31,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:25:31,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:25:31,986 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:25:31,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:25:31,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:25:31,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:25:31,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:25:31,992 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:25:31,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:25:31,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:25:31,993 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:25:31,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:25:31,994 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:25:31,994 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:25:31,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:25:31,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:25:31,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:25:31,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:25:31,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:25:31,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:25:31,996 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:25:31,996 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:25:31,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:25:31,996 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:25:31,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:25:31,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:25:31,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:25:31,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:25:31,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:25:32,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:25:32,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:25:32,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:25:32,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:25:32,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:25:32,002 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:25:32,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:25:32,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:25:32,002 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_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6710ae2bfe9a41273181e1b4b9dbdfa98f0dea6daffb771915892955eccb69dd [2022-11-16 11:25:32,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:25:32,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:25:32,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:25:32,353 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:25:32,354 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:25:32,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-ext/35_double_lock_p3_vs.i [2022-11-16 11:25:32,435 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/data/6c95c1268/2f1818d82a8642ce90fff40a503749c5/FLAG46a619878 [2022-11-16 11:25:33,105 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:25:33,106 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/sv-benchmarks/c/pthread-ext/35_double_lock_p3_vs.i [2022-11-16 11:25:33,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/data/6c95c1268/2f1818d82a8642ce90fff40a503749c5/FLAG46a619878 [2022-11-16 11:25:33,369 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/data/6c95c1268/2f1818d82a8642ce90fff40a503749c5 [2022-11-16 11:25:33,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:25:33,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:25:33,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:25:33,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:25:33,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:25:33,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:25:33" (1/1) ... [2022-11-16 11:25:33,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15cf56b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:33, skipping insertion in model container [2022-11-16 11:25:33,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:25:33" (1/1) ... [2022-11-16 11:25:33,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:25:33,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:25:33,974 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/sv-benchmarks/c/pthread-ext/35_double_lock_p3_vs.i[30553,30566] [2022-11-16 11:25:33,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:25:33,994 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:25:34,065 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/sv-benchmarks/c/pthread-ext/35_double_lock_p3_vs.i[30553,30566] [2022-11-16 11:25:34,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:25:34,132 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:25:34,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34 WrapperNode [2022-11-16 11:25:34,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:25:34,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:25:34,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:25:34,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:25:34,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34" (1/1) ... [2022-11-16 11:25:34,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34" (1/1) ... [2022-11-16 11:25:34,192 INFO L138 Inliner]: procedures = 172, calls = 27, calls flagged for inlining = 11, calls inlined = 15, statements flattened = 223 [2022-11-16 11:25:34,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:25:34,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:25:34,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:25:34,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:25:34,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34" (1/1) ... [2022-11-16 11:25:34,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34" (1/1) ... [2022-11-16 11:25:34,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34" (1/1) ... [2022-11-16 11:25:34,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34" (1/1) ... [2022-11-16 11:25:34,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34" (1/1) ... [2022-11-16 11:25:34,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34" (1/1) ... [2022-11-16 11:25:34,263 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34" (1/1) ... [2022-11-16 11:25:34,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34" (1/1) ... [2022-11-16 11:25:34,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:25:34,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:25:34,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:25:34,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:25:34,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34" (1/1) ... [2022-11-16 11:25:34,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:25:34,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:25:34,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:25:34,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b69dd8a-f00c-4855-aac1-d26ad9cd1c64/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:25:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:25:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-16 11:25:34,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-16 11:25:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-16 11:25:34,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-16 11:25:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:25:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:25:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:25:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:25:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:25:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:25:34,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:25:34,351 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:25:34,497 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:25:34,499 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:25:35,128 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:25:35,528 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:25:35,529 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 11:25:35,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:25:35 BoogieIcfgContainer [2022-11-16 11:25:35,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:25:35,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:25:35,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:25:35,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:25:35,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:25:33" (1/3) ... [2022-11-16 11:25:35,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331cb754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:25:35, skipping insertion in model container [2022-11-16 11:25:35,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:34" (2/3) ... [2022-11-16 11:25:35,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331cb754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:25:35, skipping insertion in model container [2022-11-16 11:25:35,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:25:35" (3/3) ... [2022-11-16 11:25:35,544 INFO L112 eAbstractionObserver]: Analyzing ICFG 35_double_lock_p3_vs.i [2022-11-16 11:25:35,557 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:25:35,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:25:35,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2022-11-16 11:25:35,570 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:25:35,713 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:25:35,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 126 transitions, 262 flow [2022-11-16 11:25:35,875 INFO L130 PetriNetUnfolder]: 6/136 cut-off events. [2022-11-16 11:25:35,875 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:25:35,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 136 events. 6/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 185 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 117. Up to 4 conditions per place. [2022-11-16 11:25:35,883 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 126 transitions, 262 flow [2022-11-16 11:25:35,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 125 transitions, 258 flow [2022-11-16 11:25:35,947 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:25:35,963 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a1ee217, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:25:35,963 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2022-11-16 11:25:35,991 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-16 11:25:35,992 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:25:35,992 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:35,993 INFO L209 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] [2022-11-16 11:25:35,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2022-11-16 11:25:36,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:36,001 INFO L85 PathProgramCache]: Analyzing trace with hash 560062022, now seen corresponding path program 1 times [2022-11-16 11:25:36,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:36,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830787889] [2022-11-16 11:25:36,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:36,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:36,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:36,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:36,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830787889] [2022-11-16 11:25:36,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830787889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:36,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:36,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:25:36,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325050352] [2022-11-16 11:25:36,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:36,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:25:36,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:36,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:25:36,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:25:36,761 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 126 [2022-11-16 11:25:36,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 125 transitions, 258 flow. Second operand has 2 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:36,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:36,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 126 [2022-11-16 11:25:36,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:36,925 INFO L130 PetriNetUnfolder]: 16/196 cut-off events. [2022-11-16 11:25:36,925 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:25:36,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 196 events. 16/196 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 397 event pairs, 9 based on Foata normal form. 33/199 useless extension candidates. Maximal degree in co-relation 210. Up to 33 conditions per place. [2022-11-16 11:25:36,933 INFO L137 encePairwiseOnDemand]: 109/126 looper letters, 8 selfloop transitions, 0 changer transitions 0/100 dead transitions. [2022-11-16 11:25:36,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 100 transitions, 224 flow [2022-11-16 11:25:36,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:25:36,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:25:36,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 225 transitions. [2022-11-16 11:25:36,954 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2022-11-16 11:25:36,955 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 225 transitions. [2022-11-16 11:25:36,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 225 transitions. [2022-11-16 11:25:36,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:36,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 225 transitions. [2022-11-16 11:25:36,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:36,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:36,977 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:36,978 INFO L175 Difference]: Start difference. First operand has 126 places, 125 transitions, 258 flow. Second operand 2 states and 225 transitions. [2022-11-16 11:25:36,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 100 transitions, 224 flow [2022-11-16 11:25:36,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 100 transitions, 223 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:25:36,992 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 207 flow [2022-11-16 11:25:36,994 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=207, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2022-11-16 11:25:36,999 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -22 predicate places. [2022-11-16 11:25:36,999 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 207 flow [2022-11-16 11:25:37,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:37,000 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:37,000 INFO L209 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] [2022-11-16 11:25:37,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:25:37,001 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2022-11-16 11:25:37,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:37,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1348716201, now seen corresponding path program 1 times [2022-11-16 11:25:37,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:37,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839022292] [2022-11-16 11:25:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:37,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:37,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:37,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:37,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839022292] [2022-11-16 11:25:37,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839022292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:37,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:37,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:25:37,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030764104] [2022-11-16 11:25:37,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:37,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:25:37,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:37,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:25:37,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:25:37,127 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 126 [2022-11-16 11:25:37,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:37,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:37,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 126 [2022-11-16 11:25:37,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:37,448 INFO L130 PetriNetUnfolder]: 200/661 cut-off events. [2022-11-16 11:25:37,448 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:25:37,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 661 events. 200/661 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2887 event pairs, 53 based on Foata normal form. 0/575 useless extension candidates. Maximal degree in co-relation 1090. Up to 256 conditions per place. [2022-11-16 11:25:37,456 INFO L137 encePairwiseOnDemand]: 111/126 looper letters, 42 selfloop transitions, 10 changer transitions 0/117 dead transitions. [2022-11-16 11:25:37,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 117 transitions, 348 flow [2022-11-16 11:25:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:25:37,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:25:37,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 276 transitions. [2022-11-16 11:25:37,465 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7301587301587301 [2022-11-16 11:25:37,465 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 276 transitions. [2022-11-16 11:25:37,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 276 transitions. [2022-11-16 11:25:37,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:37,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 276 transitions. [2022-11-16 11:25:37,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:37,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:37,472 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:37,472 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 207 flow. Second operand 3 states and 276 transitions. [2022-11-16 11:25:37,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 117 transitions, 348 flow [2022-11-16 11:25:37,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 117 transitions, 348 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:25:37,479 INFO L231 Difference]: Finished difference. Result has 104 places, 102 transitions, 265 flow [2022-11-16 11:25:37,480 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=265, PETRI_PLACES=104, PETRI_TRANSITIONS=102} [2022-11-16 11:25:37,481 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -22 predicate places. [2022-11-16 11:25:37,481 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 102 transitions, 265 flow [2022-11-16 11:25:37,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:37,482 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:37,483 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:37,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:25:37,483 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2022-11-16 11:25:37,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:37,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1687323646, now seen corresponding path program 1 times [2022-11-16 11:25:37,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:37,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190978091] [2022-11-16 11:25:37,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:37,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:25:37,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:25:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:25:37,578 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:25:37,579 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:25:37,580 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2022-11-16 11:25:37,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2022-11-16 11:25:37,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2022-11-16 11:25:37,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2022-11-16 11:25:37,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2022-11-16 11:25:37,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2022-11-16 11:25:37,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2022-11-16 11:25:37,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2022-11-16 11:25:37,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2022-11-16 11:25:37,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2022-11-16 11:25:37,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2022-11-16 11:25:37,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2022-11-16 11:25:37,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2022-11-16 11:25:37,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2022-11-16 11:25:37,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2022-11-16 11:25:37,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2022-11-16 11:25:37,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2022-11-16 11:25:37,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2022-11-16 11:25:37,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2022-11-16 11:25:37,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2022-11-16 11:25:37,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2022-11-16 11:25:37,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2022-11-16 11:25:37,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 44 remaining) [2022-11-16 11:25:37,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2022-11-16 11:25:37,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2022-11-16 11:25:37,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2022-11-16 11:25:37,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2022-11-16 11:25:37,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2022-11-16 11:25:37,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2022-11-16 11:25:37,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2022-11-16 11:25:37,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2022-11-16 11:25:37,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2022-11-16 11:25:37,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2022-11-16 11:25:37,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2022-11-16 11:25:37,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2022-11-16 11:25:37,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2022-11-16 11:25:37,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2022-11-16 11:25:37,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2022-11-16 11:25:37,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2022-11-16 11:25:37,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2022-11-16 11:25:37,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2022-11-16 11:25:37,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2022-11-16 11:25:37,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2022-11-16 11:25:37,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2022-11-16 11:25:37,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:25:37,596 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 11:25:37,599 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 11:25:37,600 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-16 11:25:37,697 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:25:37,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 214 transitions, 452 flow [2022-11-16 11:25:37,752 INFO L130 PetriNetUnfolder]: 8/217 cut-off events. [2022-11-16 11:25:37,753 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:25:37,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 217 events. 8/217 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 449 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 226. Up to 6 conditions per place. [2022-11-16 11:25:37,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 214 transitions, 452 flow [2022-11-16 11:25:37,759 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 195 places, 193 transitions, 401 flow [2022-11-16 11:25:37,761 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:25:37,762 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a1ee217, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:25:37,762 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2022-11-16 11:25:37,766 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-16 11:25:37,766 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:25:37,766 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:37,767 INFO L209 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] [2022-11-16 11:25:37,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-11-16 11:25:37,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:37,768 INFO L85 PathProgramCache]: Analyzing trace with hash 211332680, now seen corresponding path program 1 times [2022-11-16 11:25:37,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:37,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604486808] [2022-11-16 11:25:37,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:37,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:37,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:37,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:37,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604486808] [2022-11-16 11:25:37,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604486808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:37,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:37,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:25:37,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892211863] [2022-11-16 11:25:37,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:37,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:25:37,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:37,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:25:37,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:25:37,919 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 214 [2022-11-16 11:25:37,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 193 transitions, 401 flow. Second operand has 2 states, 2 states have (on average 165.0) internal successors, (330), 2 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:37,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:37,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 214 [2022-11-16 11:25:37,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:38,380 INFO L130 PetriNetUnfolder]: 152/1258 cut-off events. [2022-11-16 11:25:38,381 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-11-16 11:25:38,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1558 conditions, 1258 events. 152/1258 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8277 event pairs, 119 based on Foata normal form. 182/1253 useless extension candidates. Maximal degree in co-relation 1528. Up to 243 conditions per place. [2022-11-16 11:25:38,400 INFO L137 encePairwiseOnDemand]: 189/214 looper letters, 13 selfloop transitions, 0 changer transitions 0/160 dead transitions. [2022-11-16 11:25:38,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 160 transitions, 361 flow [2022-11-16 11:25:38,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:25:38,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:25:38,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 366 transitions. [2022-11-16 11:25:38,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8551401869158879 [2022-11-16 11:25:38,402 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 366 transitions. [2022-11-16 11:25:38,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 366 transitions. [2022-11-16 11:25:38,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:38,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 366 transitions. [2022-11-16 11:25:38,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 183.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:38,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:38,407 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:38,407 INFO L175 Difference]: Start difference. First operand has 195 places, 193 transitions, 401 flow. Second operand 2 states and 366 transitions. [2022-11-16 11:25:38,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 160 transitions, 361 flow [2022-11-16 11:25:38,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 160 transitions, 358 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-16 11:25:38,415 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 332 flow [2022-11-16 11:25:38,415 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=332, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2022-11-16 11:25:38,418 INFO L288 CegarLoopForPetriNet]: 195 programPoint places, -30 predicate places. [2022-11-16 11:25:38,419 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 332 flow [2022-11-16 11:25:38,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 165.0) internal successors, (330), 2 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:38,419 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:38,419 INFO L209 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] [2022-11-16 11:25:38,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:25:38,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-11-16 11:25:38,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:38,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1227276619, now seen corresponding path program 1 times [2022-11-16 11:25:38,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:38,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781260552] [2022-11-16 11:25:38,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:38,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:38,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:38,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781260552] [2022-11-16 11:25:38,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781260552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:38,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:38,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:25:38,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952112356] [2022-11-16 11:25:38,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:38,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:25:38,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:38,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:25:38,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:25:38,487 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 214 [2022-11-16 11:25:38,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:38,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:38,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 214 [2022-11-16 11:25:38,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:44,931 INFO L130 PetriNetUnfolder]: 14269/30266 cut-off events. [2022-11-16 11:25:44,932 INFO L131 PetriNetUnfolder]: For 630/630 co-relation queries the response was YES. [2022-11-16 11:25:45,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53197 conditions, 30266 events. 14269/30266 cut-off events. For 630/630 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 283085 event pairs, 4799 based on Foata normal form. 0/25371 useless extension candidates. Maximal degree in co-relation 53192. Up to 12660 conditions per place. [2022-11-16 11:25:45,293 INFO L137 encePairwiseOnDemand]: 179/214 looper letters, 92 selfloop transitions, 26 changer transitions 0/214 dead transitions. [2022-11-16 11:25:45,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 214 transitions, 684 flow [2022-11-16 11:25:45,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:25:45,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:25:45,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2022-11-16 11:25:45,297 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7118380062305296 [2022-11-16 11:25:45,297 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 457 transitions. [2022-11-16 11:25:45,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 457 transitions. [2022-11-16 11:25:45,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:45,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 457 transitions. [2022-11-16 11:25:45,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:45,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:45,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:45,302 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 332 flow. Second operand 3 states and 457 transitions. [2022-11-16 11:25:45,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 214 transitions, 684 flow [2022-11-16 11:25:45,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 214 transitions, 684 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:25:45,312 INFO L231 Difference]: Finished difference. Result has 169 places, 186 transitions, 558 flow [2022-11-16 11:25:45,313 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=169, PETRI_TRANSITIONS=186} [2022-11-16 11:25:45,316 INFO L288 CegarLoopForPetriNet]: 195 programPoint places, -26 predicate places. [2022-11-16 11:25:45,316 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 186 transitions, 558 flow [2022-11-16 11:25:45,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:45,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:45,318 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:45,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:25:45,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-11-16 11:25:45,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:45,320 INFO L85 PathProgramCache]: Analyzing trace with hash -366562233, now seen corresponding path program 1 times [2022-11-16 11:25:45,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:45,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775727842] [2022-11-16 11:25:45,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:45,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:25:45,360 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:25:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:25:45,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:25:45,397 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:25:45,398 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2022-11-16 11:25:45,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2022-11-16 11:25:45,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2022-11-16 11:25:45,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2022-11-16 11:25:45,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2022-11-16 11:25:45,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2022-11-16 11:25:45,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2022-11-16 11:25:45,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2022-11-16 11:25:45,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2022-11-16 11:25:45,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2022-11-16 11:25:45,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2022-11-16 11:25:45,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2022-11-16 11:25:45,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2022-11-16 11:25:45,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2022-11-16 11:25:45,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2022-11-16 11:25:45,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2022-11-16 11:25:45,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2022-11-16 11:25:45,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2022-11-16 11:25:45,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2022-11-16 11:25:45,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2022-11-16 11:25:45,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2022-11-16 11:25:45,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2022-11-16 11:25:45,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 65 remaining) [2022-11-16 11:25:45,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2022-11-16 11:25:45,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2022-11-16 11:25:45,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2022-11-16 11:25:45,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2022-11-16 11:25:45,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2022-11-16 11:25:45,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2022-11-16 11:25:45,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2022-11-16 11:25:45,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2022-11-16 11:25:45,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2022-11-16 11:25:45,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2022-11-16 11:25:45,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2022-11-16 11:25:45,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2022-11-16 11:25:45,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2022-11-16 11:25:45,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2022-11-16 11:25:45,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2022-11-16 11:25:45,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2022-11-16 11:25:45,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2022-11-16 11:25:45,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2022-11-16 11:25:45,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2022-11-16 11:25:45,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2022-11-16 11:25:45,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2022-11-16 11:25:45,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2022-11-16 11:25:45,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2022-11-16 11:25:45,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2022-11-16 11:25:45,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2022-11-16 11:25:45,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2022-11-16 11:25:45,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2022-11-16 11:25:45,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2022-11-16 11:25:45,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2022-11-16 11:25:45,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2022-11-16 11:25:45,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2022-11-16 11:25:45,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2022-11-16 11:25:45,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2022-11-16 11:25:45,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2022-11-16 11:25:45,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2022-11-16 11:25:45,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2022-11-16 11:25:45,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2022-11-16 11:25:45,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2022-11-16 11:25:45,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2022-11-16 11:25:45,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2022-11-16 11:25:45,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2022-11-16 11:25:45,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2022-11-16 11:25:45,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:25:45,424 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 11:25:45,427 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 11:25:45,427 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-16 11:25:45,579 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:25:45,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 303 places, 302 transitions, 646 flow [2022-11-16 11:25:45,691 INFO L130 PetriNetUnfolder]: 10/298 cut-off events. [2022-11-16 11:25:45,691 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-16 11:25:45,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 298 events. 10/298 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 833 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 312. Up to 8 conditions per place. [2022-11-16 11:25:45,697 INFO L82 GeneralOperation]: Start removeDead. Operand has 303 places, 302 transitions, 646 flow [2022-11-16 11:25:45,704 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 261 transitions, 546 flow [2022-11-16 11:25:45,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:25:45,706 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a1ee217, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:25:45,707 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2022-11-16 11:25:45,711 INFO L130 PetriNetUnfolder]: 2/31 cut-off events. [2022-11-16 11:25:45,712 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:25:45,712 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:45,712 INFO L209 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] [2022-11-16 11:25:45,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:25:45,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:45,713 INFO L85 PathProgramCache]: Analyzing trace with hash 239944789, now seen corresponding path program 1 times [2022-11-16 11:25:45,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:45,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847523839] [2022-11-16 11:25:45,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:45,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:45,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:45,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:45,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847523839] [2022-11-16 11:25:45,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847523839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:45,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:45,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:25:45,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764318377] [2022-11-16 11:25:45,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:45,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:25:45,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:45,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:25:45,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:25:45,884 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 302 [2022-11-16 11:25:45,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 261 transitions, 546 flow. Second operand has 2 states, 2 states have (on average 229.0) internal successors, (458), 2 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:45,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:45,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 302 [2022-11-16 11:25:45,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:48,205 INFO L130 PetriNetUnfolder]: 1128/7129 cut-off events. [2022-11-16 11:25:48,205 INFO L131 PetriNetUnfolder]: For 501/501 co-relation queries the response was YES. [2022-11-16 11:25:48,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9081 conditions, 7129 events. 1128/7129 cut-off events. For 501/501 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 74306 event pairs, 969 based on Foata normal form. 931/7045 useless extension candidates. Maximal degree in co-relation 9050. Up to 1593 conditions per place. [2022-11-16 11:25:48,334 INFO L137 encePairwiseOnDemand]: 269/302 looper letters, 18 selfloop transitions, 0 changer transitions 0/220 dead transitions. [2022-11-16 11:25:48,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 220 transitions, 500 flow [2022-11-16 11:25:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:25:48,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:25:48,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 507 transitions. [2022-11-16 11:25:48,337 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8394039735099338 [2022-11-16 11:25:48,337 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 507 transitions. [2022-11-16 11:25:48,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 507 transitions. [2022-11-16 11:25:48,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:48,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 507 transitions. [2022-11-16 11:25:48,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 253.5) internal successors, (507), 2 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:48,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 302.0) internal successors, (906), 3 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:48,342 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 302.0) internal successors, (906), 3 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:48,343 INFO L175 Difference]: Start difference. First operand has 264 places, 261 transitions, 546 flow. Second operand 2 states and 507 transitions. [2022-11-16 11:25:48,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 220 transitions, 500 flow [2022-11-16 11:25:48,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 220 transitions, 493 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-11-16 11:25:48,349 INFO L231 Difference]: Finished difference. Result has 226 places, 220 transitions, 457 flow [2022-11-16 11:25:48,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=457, PETRI_PLACES=226, PETRI_TRANSITIONS=220} [2022-11-16 11:25:48,352 INFO L288 CegarLoopForPetriNet]: 264 programPoint places, -38 predicate places. [2022-11-16 11:25:48,353 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 220 transitions, 457 flow [2022-11-16 11:25:48,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 229.0) internal successors, (458), 2 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:48,354 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:48,354 INFO L209 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] [2022-11-16 11:25:48,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:25:48,354 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-11-16 11:25:48,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:48,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1341245288, now seen corresponding path program 1 times [2022-11-16 11:25:48,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:48,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314315206] [2022-11-16 11:25:48,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:48,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:48,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:48,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:48,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314315206] [2022-11-16 11:25:48,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314315206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:48,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:48,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:25:48,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488279042] [2022-11-16 11:25:48,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:48,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:25:48,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:48,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:25:48,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:25:48,407 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 302 [2022-11-16 11:25:48,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 220 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:48,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:48,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 302 [2022-11-16 11:25:48,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand