./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:22:48,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:22:48,876 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-29 06:22:48,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:22:48,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:22:48,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:22:48,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:22:48,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:22:48,905 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:22:48,906 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:22:48,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:22:48,907 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:22:48,908 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:22:48,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:22:48,909 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:22:48,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:22:48,910 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:22:48,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:22:48,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:22:48,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:22:48,912 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 06:22:48,912 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 06:22:48,913 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 06:22:48,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:22:48,914 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 06:22:48,914 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:22:48,915 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:22:48,915 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:22:48,916 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:22:48,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:22:48,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:22:48,917 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:22:48,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:22:48,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:22:48,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:22:48,918 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:22:48,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:22:48,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:22:48,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:22:48,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:22:48,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:22:48,919 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2023-11-29 06:22:49,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:22:49,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:22:49,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:22:49,143 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:22:49,143 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:22:49,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2023-11-29 06:22:51,887 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:22:52,148 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:22:52,149 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2023-11-29 06:22:52,167 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/data/741ba456d/60eb0a7be8e542e48c9176e33194b771/FLAG7c3cef6d8 [2023-11-29 06:22:52,180 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/data/741ba456d/60eb0a7be8e542e48c9176e33194b771 [2023-11-29 06:22:52,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:22:52,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:22:52,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:22:52,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:22:52,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:22:52,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@254867b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52, skipping insertion in model container [2023-11-29 06:22:52,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,251 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:22:52,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:22:52,652 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:22:52,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:22:52,770 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:22:52,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52 WrapperNode [2023-11-29 06:22:52,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:22:52,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:22:52,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:22:52,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:22:52,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,829 INFO L138 Inliner]: procedures = 280, calls = 99, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 434 [2023-11-29 06:22:52,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:22:52,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:22:52,830 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:22:52,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:22:52,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,848 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,885 INFO L175 MemorySlicer]: Split 56 memory accesses to 9 slices as follows [2, 28, 5, 5, 5, 5, 2, 2, 2]. 50 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 5, 5, 5, 5, 0, 0, 0]. The 17 writes are split as follows [0, 14, 0, 0, 0, 0, 1, 1, 1]. [2023-11-29 06:22:52,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:22:52,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:22:52,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:22:52,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:22:52,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (1/1) ... [2023-11-29 06:22:52,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:22:52,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:22:52,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:22:52,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8a06229-3675-4959-a481-e32d931bc7b5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:22:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:22:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 06:22:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 06:22:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 06:22:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 06:22:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 06:22:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 06:22:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 06:22:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-29 06:22:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-29 06:22:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-29 06:22:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-29 06:22:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:22:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 06:22:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 06:22:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 06:22:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 06:22:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 06:22:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 06:22:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 06:22:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 06:22:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 06:22:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 06:22:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-29 06:22:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-29 06:22:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 06:22:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 06:22:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 06:22:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 06:22:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 06:22:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 06:22:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 06:22:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 06:22:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 06:22:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 06:22:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 06:22:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:22:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 06:22:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 06:22:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 06:22:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 06:22:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 06:22:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 06:22:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 06:22:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-29 06:22:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-29 06:22:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-11-29 06:22:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-11-29 06:22:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:22:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:22:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:22:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 06:22:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 06:22:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 06:22:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 06:22:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 06:22:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 06:22:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:22:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:22:53,015 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 06:22:53,275 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:22:53,278 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:22:53,850 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:22:54,107 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:22:54,107 INFO L309 CfgBuilder]: Removed 29 assume(true) statements. [2023-11-29 06:22:54,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:22:54 BoogieIcfgContainer [2023-11-29 06:22:54,108 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:22:54,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:22:54,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:22:54,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:22:54,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:22:52" (1/3) ... [2023-11-29 06:22:54,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3847f8c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:22:54, skipping insertion in model container [2023-11-29 06:22:54,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:52" (2/3) ... [2023-11-29 06:22:54,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3847f8c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:22:54, skipping insertion in model container [2023-11-29 06:22:54,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:22:54" (3/3) ... [2023-11-29 06:22:54,117 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2023-11-29 06:22:54,134 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:22:54,134 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2023-11-29 06:22:54,134 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 06:22:54,257 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-11-29 06:22:54,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 256 transitions, 551 flow [2023-11-29 06:22:54,519 INFO L124 PetriNetUnfolderBase]: 142/957 cut-off events. [2023-11-29 06:22:54,519 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-29 06:22:54,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1011 conditions, 957 events. 142/957 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7415 event pairs, 0 based on Foata normal form. 0/541 useless extension candidates. Maximal degree in co-relation 492. Up to 16 conditions per place. [2023-11-29 06:22:54,539 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 256 transitions, 551 flow [2023-11-29 06:22:54,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 256 transitions, 551 flow [2023-11-29 06:22:54,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:22:54,575 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@46c90429, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:22:54,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2023-11-29 06:22:54,578 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:22:54,579 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-29 06:22:54,579 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:22:54,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:22:54,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-29 06:22:54,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 111 more)] === [2023-11-29 06:22:54,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:22:54,585 INFO L85 PathProgramCache]: Analyzing trace with hash 40038, now seen corresponding path program 1 times [2023-11-29 06:22:54,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:22:54,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218078031] [2023-11-29 06:22:54,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:22:54,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:22:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:22:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:22:54,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:22:54,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218078031] [2023-11-29 06:22:54,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218078031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:22:54,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:22:54,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 06:22:54,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508984115] [2023-11-29 06:22:54,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:22:54,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:22:54,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:22:54,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:22:54,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:22:55,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 256 [2023-11-29 06:22:55,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 256 transitions, 551 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:22:55,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:22:55,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 256 [2023-11-29 06:22:55,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:23:59,695 INFO L124 PetriNetUnfolderBase]: 363809/682159 cut-off events. [2023-11-29 06:23:59,695 INFO L125 PetriNetUnfolderBase]: For 9394/9394 co-relation queries the response was YES. [2023-11-29 06:24:01,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175259 conditions, 682159 events. 363809/682159 cut-off events. For 9394/9394 co-relation queries the response was YES. Maximal size of possible extension queue 13117. Compared 8512863 event pairs, 335070 based on Foata normal form. 71770/670207 useless extension candidates. Maximal degree in co-relation 1031585. Up to 488695 conditions per place. [2023-11-29 06:24:04,224 INFO L140 encePairwiseOnDemand]: 223/256 looper letters, 105 selfloop transitions, 2 changer transitions 0/223 dead transitions. [2023-11-29 06:24:04,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 223 transitions, 699 flow [2023-11-29 06:24:04,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:24:04,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:24:04,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 486 transitions. [2023-11-29 06:24:04,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6328125 [2023-11-29 06:24:04,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 486 transitions. [2023-11-29 06:24:04,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 486 transitions. [2023-11-29 06:24:04,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:24:04,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 486 transitions. [2023-11-29 06:24:04,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:24:04,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:24:04,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:24:04,250 INFO L175 Difference]: Start difference. First operand has 222 places, 256 transitions, 551 flow. Second operand 3 states and 486 transitions. [2023-11-29 06:24:04,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 223 transitions, 699 flow [2023-11-29 06:24:04,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 223 transitions, 699 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:24:04,405 INFO L231 Difference]: Finished difference. Result has 218 places, 223 transitions, 489 flow [2023-11-29 06:24:04,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=489, PETRI_PLACES=218, PETRI_TRANSITIONS=223} [2023-11-29 06:24:04,410 INFO L281 CegarLoopForPetriNet]: 222 programPoint places, -4 predicate places. [2023-11-29 06:24:04,411 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 223 transitions, 489 flow [2023-11-29 06:24:04,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:24:04,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:24:04,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-29 06:24:04,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:24:04,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 111 more)] === [2023-11-29 06:24:04,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:04,413 INFO L85 PathProgramCache]: Analyzing trace with hash 40039, now seen corresponding path program 1 times [2023-11-29 06:24:04,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:04,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984339142] [2023-11-29 06:24:04,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:04,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:04,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:24:04,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:04,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984339142] [2023-11-29 06:24:04,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984339142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:04,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:04,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 06:24:04,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098503853] [2023-11-29 06:24:04,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:04,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:24:04,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:04,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:24:04,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:24:04,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 256 [2023-11-29 06:24:04,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 223 transitions, 489 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:24:04,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:24:04,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 256 [2023-11-29 06:24:04,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand