./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 04:15:40,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:15:40,459 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 04:15:40,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:15:40,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:15:40,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:15:40,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:15:40,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:15:40,491 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 04:15:40,492 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 04:15:40,492 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:15:40,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:15:40,493 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 04:15:40,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 04:15:40,496 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 04:15:40,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:15:40,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:15:40,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:15:40,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:15:40,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:15:40,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:15:40,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:15:40,502 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:15:40,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:15:40,502 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:15:40,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:15:40,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:15:40,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:15:40,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:15:40,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:15:40,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:15:40,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:15:40,505 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:15:40,505 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 04:15:40,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:15:40,506 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:15:40,506 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 04:15:40,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 04:15:40,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:15:40,506 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 [2024-11-09 04:15:40,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:15:40,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:15:40,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:15:40,813 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:15:40,814 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:15:40,816 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-09 04:15:42,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:15:42,884 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:15:42,885 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-09 04:15:42,923 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d863daaf6/7f74fa1ff8d14bf383e8180065dd1252/FLAGa310a6b08 [2024-11-09 04:15:42,937 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d863daaf6/7f74fa1ff8d14bf383e8180065dd1252 [2024-11-09 04:15:42,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:15:42,941 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:15:42,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:15:42,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:15:42,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:15:42,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:15:42" (1/1) ... [2024-11-09 04:15:42,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c32c73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:42, skipping insertion in model container [2024-11-09 04:15:42,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:15:42" (1/1) ... [2024-11-09 04:15:43,068 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:15:43,901 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2024-11-09 04:15:44,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:15:44,331 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:15:44,450 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2024-11-09 04:15:44,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:15:44,826 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:15:44,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44 WrapperNode [2024-11-09 04:15:44,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:15:44,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:15:44,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:15:44,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:15:44,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (1/1) ... [2024-11-09 04:15:44,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (1/1) ... [2024-11-09 04:15:45,046 INFO L138 Inliner]: procedures = 113, calls = 1240, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 2689 [2024-11-09 04:15:45,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:15:45,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:15:45,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:15:45,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:15:45,062 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (1/1) ... [2024-11-09 04:15:45,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (1/1) ... [2024-11-09 04:15:45,090 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (1/1) ... [2024-11-09 04:15:45,309 INFO L175 MemorySlicer]: Split 666 memory accesses to 14 slices as follows [2, 22, 175, 5, 44, 83, 7, 2, 5, 7, 125, 6, 175, 8]. 26 percent of accesses are in the largest equivalence class. The 213 initializations are split as follows [2, 0, 5, 5, 0, 63, 0, 0, 5, 0, 125, 0, 0, 8]. The 322 writes are split as follows [0, 4, 97, 0, 44, 20, 0, 1, 0, 0, 0, 6, 150, 0]. [2024-11-09 04:15:45,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (1/1) ... [2024-11-09 04:15:45,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (1/1) ... [2024-11-09 04:15:45,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (1/1) ... [2024-11-09 04:15:45,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (1/1) ... [2024-11-09 04:15:45,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (1/1) ... [2024-11-09 04:15:45,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (1/1) ... [2024-11-09 04:15:45,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:15:45,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:15:45,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:15:45,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:15:45,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (1/1) ... [2024-11-09 04:15:45,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:15:45,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 04:15:45,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 04:15:45,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 04:15:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2024-11-09 04:15:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2024-11-09 04:15:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2024-11-09 04:15:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2024-11-09 04:15:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2024-11-09 04:15:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2024-11-09 04:15:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2024-11-09 04:15:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2024-11-09 04:15:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2024-11-09 04:15:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2024-11-09 04:15:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2024-11-09 04:15:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2024-11-09 04:15:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2024-11-09 04:15:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2024-11-09 04:15:45,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2024-11-09 04:15:45,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2024-11-09 04:15:45,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2024-11-09 04:15:45,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2024-11-09 04:15:45,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2024-11-09 04:15:45,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2024-11-09 04:15:45,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2024-11-09 04:15:45,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2024-11-09 04:15:45,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2024-11-09 04:15:45,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2024-11-09 04:15:45,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2024-11-09 04:15:45,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2024-11-09 04:15:45,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2024-11-09 04:15:45,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2024-11-09 04:15:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 04:15:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 04:15:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 04:15:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 04:15:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 04:15:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 04:15:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-09 04:15:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-09 04:15:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-09 04:15:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-09 04:15:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-09 04:15:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-09 04:15:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-09 04:15:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-09 04:15:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 04:15:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 04:15:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 04:15:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 04:15:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 04:15:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 04:15:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-09 04:15:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-09 04:15:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-09 04:15:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-09 04:15:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-09 04:15:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-09 04:15:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-09 04:15:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-09 04:15:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 04:15:45,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 04:15:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 04:15:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 04:15:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 04:15:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 04:15:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 04:15:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 04:15:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 04:15:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-09 04:15:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-09 04:15:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-09 04:15:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-09 04:15:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-09 04:15:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-09 04:15:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-09 04:15:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-09 04:15:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-09 04:15:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 04:15:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 04:15:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-09 04:15:45,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-09 04:15:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 04:15:45,597 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 04:15:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 04:15:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 04:15:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 04:15:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 04:15:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 04:15:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 04:15:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 04:15:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-09 04:15:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-09 04:15:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-09 04:15:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-09 04:15:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-09 04:15:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-09 04:15:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-09 04:15:45,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 04:15:45,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 04:15:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-09 04:15:45,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-09 04:15:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 04:15:45,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 04:15:45,599 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:15:45,600 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:15:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:15:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-09 04:15:45,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-09 04:15:45,600 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2024-11-09 04:15:45,600 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2024-11-09 04:15:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2024-11-09 04:15:45,601 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2024-11-09 04:15:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:15:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 04:15:45,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 04:15:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 04:15:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 04:15:45,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 04:15:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 04:15:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 04:15:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 04:15:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-09 04:15:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-09 04:15:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-09 04:15:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-09 04:15:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-09 04:15:45,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-09 04:15:45,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-09 04:15:45,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-09 04:15:45,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:15:45,603 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-09 04:15:45,603 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-09 04:15:45,604 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-09 04:15:45,604 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-09 04:15:45,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 04:15:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 04:15:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 04:15:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 04:15:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 04:15:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 04:15:45,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-09 04:15:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-09 04:15:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-09 04:15:45,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-09 04:15:45,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-09 04:15:45,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-09 04:15:45,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-09 04:15:45,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-09 04:15:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:15:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2024-11-09 04:15:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2024-11-09 04:15:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 04:15:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 04:15:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-09 04:15:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-09 04:15:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-09 04:15:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-09 04:15:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 04:15:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 04:15:45,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 04:15:45,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 04:15:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 04:15:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 04:15:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 04:15:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-09 04:15:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-09 04:15:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-09 04:15:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-09 04:15:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-09 04:15:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-09 04:15:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-09 04:15:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 04:15:45,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 04:15:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:15:45,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:15:46,094 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:15:46,097 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:15:46,198 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 04:15:46,301 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-09 04:15:55,403 INFO L? ?]: Removed 894 outVars from TransFormulas that were not future-live. [2024-11-09 04:15:55,403 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:15:55,439 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:15:55,439 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-09 04:15:55,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:15:55 BoogieIcfgContainer [2024-11-09 04:15:55,440 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:15:55,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:15:55,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:15:55,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:15:55,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:15:42" (1/3) ... [2024-11-09 04:15:55,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afaa668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:15:55, skipping insertion in model container [2024-11-09 04:15:55,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:15:44" (2/3) ... [2024-11-09 04:15:55,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afaa668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:15:55, skipping insertion in model container [2024-11-09 04:15:55,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:15:55" (3/3) ... [2024-11-09 04:15:55,472 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-09 04:15:55,492 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:15:55,492 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:15:55,585 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:15:55,594 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6c2f7988, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:15:55,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:15:55,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 523 states, 383 states have (on average 1.3759791122715406) internal successors, (527), 409 states have internal predecessors, (527), 119 states have call successors, (119), 21 states have call predecessors, (119), 19 states have return successors, (115), 103 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-09 04:15:55,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 04:15:55,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:15:55,612 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:15:55,612 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:15:55,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:15:55,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1757756952, now seen corresponding path program 1 times [2024-11-09 04:15:55,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:15:55,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566733146] [2024-11-09 04:15:55,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:15:55,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:15:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:15:58,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:15:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:15:58,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:15:58,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:15:58,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566733146] [2024-11-09 04:15:58,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566733146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:15:58,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:15:58,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:15:58,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153109247] [2024-11-09 04:15:58,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:15:58,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:15:58,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:15:58,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:15:58,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:15:58,515 INFO L87 Difference]: Start difference. First operand has 523 states, 383 states have (on average 1.3759791122715406) internal successors, (527), 409 states have internal predecessors, (527), 119 states have call successors, (119), 21 states have call predecessors, (119), 19 states have return successors, (115), 103 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:16:02,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:16:06,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:16:13,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:16:13,410 INFO L93 Difference]: Finished difference Result 1564 states and 2343 transitions. [2024-11-09 04:16:13,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:16:13,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-11-09 04:16:13,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:16:13,441 INFO L225 Difference]: With dead ends: 1564 [2024-11-09 04:16:13,442 INFO L226 Difference]: Without dead ends: 1028 [2024-11-09 04:16:13,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:16:13,451 INFO L432 NwaCegarLoop]: 1236 mSDtfsCounter, 724 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 150 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:16:13,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 2512 Invalid, 781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [150 Valid, 629 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2024-11-09 04:16:13,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-09 04:16:13,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 994. [2024-11-09 04:16:13,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 734 states have (on average 1.3433242506811989) internal successors, (986), 770 states have internal predecessors, (986), 223 states have call successors, (223), 37 states have call predecessors, (223), 36 states have return successors, (218), 194 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-09 04:16:13,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1427 transitions. [2024-11-09 04:16:13,614 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1427 transitions. Word has length 22 [2024-11-09 04:16:13,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:16:13,615 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1427 transitions. [2024-11-09 04:16:13,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:16:13,615 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1427 transitions. [2024-11-09 04:16:13,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 04:16:13,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:16:13,618 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 04:16:13,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:16:13,618 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:16:13,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:16:13,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1292697066, now seen corresponding path program 1 times [2024-11-09 04:16:13,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:16:13,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572775787] [2024-11-09 04:16:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:16:13,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:16:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:15,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:16:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:15,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 04:16:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:15,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:16:15,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:16:15,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572775787] [2024-11-09 04:16:15,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572775787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:16:15,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:16:15,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:16:15,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625555675] [2024-11-09 04:16:15,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:16:15,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:16:15,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:16:15,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:16:15,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:16:15,386 INFO L87 Difference]: Start difference. First operand 994 states and 1427 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:16:19,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:16:22,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:16:22,615 INFO L93 Difference]: Finished difference Result 1054 states and 1505 transitions. [2024-11-09 04:16:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:16:22,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-09 04:16:22,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:16:22,624 INFO L225 Difference]: With dead ends: 1054 [2024-11-09 04:16:22,625 INFO L226 Difference]: Without dead ends: 1041 [2024-11-09 04:16:22,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:16:22,627 INFO L432 NwaCegarLoop]: 665 mSDtfsCounter, 708 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 131 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:16:22,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1080 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 254 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2024-11-09 04:16:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-11-09 04:16:22,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 994. [2024-11-09 04:16:22,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 734 states have (on average 1.3419618528610355) internal successors, (985), 770 states have internal predecessors, (985), 223 states have call successors, (223), 37 states have call predecessors, (223), 36 states have return successors, (218), 194 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-09 04:16:22,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1426 transitions. [2024-11-09 04:16:22,706 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1426 transitions. Word has length 32 [2024-11-09 04:16:22,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:16:22,706 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1426 transitions. [2024-11-09 04:16:22,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:16:22,707 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1426 transitions. [2024-11-09 04:16:22,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 04:16:22,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:16:22,708 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 04:16:22,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:16:22,709 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:16:22,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:16:22,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1349955368, now seen corresponding path program 1 times [2024-11-09 04:16:22,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:16:22,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127858065] [2024-11-09 04:16:22,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:16:22,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:16:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:24,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:16:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:24,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 04:16:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:16:24,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:16:24,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127858065] [2024-11-09 04:16:24,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127858065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:16:24,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:16:24,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:16:24,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714963167] [2024-11-09 04:16:24,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:16:24,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:16:24,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:16:24,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:16:24,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:16:24,923 INFO L87 Difference]: Start difference. First operand 994 states and 1426 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:16:28,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:16:33,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:16:33,637 INFO L93 Difference]: Finished difference Result 3023 states and 4351 transitions. [2024-11-09 04:16:33,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:16:33,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-09 04:16:33,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:16:33,653 INFO L225 Difference]: With dead ends: 3023 [2024-11-09 04:16:33,653 INFO L226 Difference]: Without dead ends: 2041 [2024-11-09 04:16:33,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:16:33,659 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 758 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 248 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:16:33,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 1583 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2024-11-09 04:16:33,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2024-11-09 04:16:33,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 1973. [2024-11-09 04:16:33,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1460 states have (on average 1.3390410958904109) internal successors, (1955), 1528 states have internal predecessors, (1955), 439 states have call successors, (439), 72 states have call predecessors, (439), 73 states have return successors, (442), 386 states have call predecessors, (442), 434 states have call successors, (442) [2024-11-09 04:16:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2836 transitions. [2024-11-09 04:16:33,768 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2836 transitions. Word has length 32 [2024-11-09 04:16:33,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:16:33,768 INFO L471 AbstractCegarLoop]: Abstraction has 1973 states and 2836 transitions. [2024-11-09 04:16:33,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:16:33,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2836 transitions. [2024-11-09 04:16:33,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 04:16:33,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:16:33,770 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 04:16:33,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:16:33,770 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:16:33,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:16:33,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1101314634, now seen corresponding path program 1 times [2024-11-09 04:16:33,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:16:33,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490161463] [2024-11-09 04:16:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:16:33,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:16:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:35,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:16:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:35,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 04:16:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:35,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:16:35,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:16:35,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490161463] [2024-11-09 04:16:35,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490161463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:16:35,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:16:35,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:16:35,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931866723] [2024-11-09 04:16:35,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:16:35,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:16:35,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:16:35,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:16:35,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:16:35,730 INFO L87 Difference]: Start difference. First operand 1973 states and 2836 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:16:39,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:16:46,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:16:46,051 INFO L93 Difference]: Finished difference Result 6004 states and 8633 transitions. [2024-11-09 04:16:46,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:16:46,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-09 04:16:46,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:16:46,076 INFO L225 Difference]: With dead ends: 6004 [2024-11-09 04:16:46,077 INFO L226 Difference]: Without dead ends: 4043 [2024-11-09 04:16:46,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:16:46,085 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 728 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 149 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:16:46,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 2423 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 609 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2024-11-09 04:16:46,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4043 states. [2024-11-09 04:16:46,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4043 to 3920. [2024-11-09 04:16:46,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 2903 states have (on average 1.3368928694454012) internal successors, (3881), 3035 states have internal predecessors, (3881), 871 states have call successors, (871), 142 states have call predecessors, (871), 145 states have return successors, (882), 770 states have call predecessors, (882), 866 states have call successors, (882) [2024-11-09 04:16:46,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5634 transitions. [2024-11-09 04:16:46,273 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5634 transitions. Word has length 33 [2024-11-09 04:16:46,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:16:46,274 INFO L471 AbstractCegarLoop]: Abstraction has 3920 states and 5634 transitions. [2024-11-09 04:16:46,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:16:46,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5634 transitions. [2024-11-09 04:16:46,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 04:16:46,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:16:46,279 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 04:16:46,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:16:46,279 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:16:46,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:16:46,279 INFO L85 PathProgramCache]: Analyzing trace with hash 218731499, now seen corresponding path program 1 times [2024-11-09 04:16:46,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:16:46,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031775847] [2024-11-09 04:16:46,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:16:46,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:16:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:47,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:16:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:47,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 04:16:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:47,874 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:16:47,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:16:47,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031775847] [2024-11-09 04:16:47,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031775847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:16:47,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:16:47,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:16:47,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375131049] [2024-11-09 04:16:47,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:16:47,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:16:47,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:16:47,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:16:47,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:16:47,879 INFO L87 Difference]: Start difference. First operand 3920 states and 5634 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:16:51,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:16:57,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:16:57,662 INFO L93 Difference]: Finished difference Result 4041 states and 5802 transitions. [2024-11-09 04:16:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:16:57,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-11-09 04:16:57,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:16:57,684 INFO L225 Difference]: With dead ends: 4041 [2024-11-09 04:16:57,685 INFO L226 Difference]: Without dead ends: 4038 [2024-11-09 04:16:57,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:16:57,689 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 725 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 146 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:16:57,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 2421 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 602 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2024-11-09 04:16:57,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4038 states. [2024-11-09 04:16:57,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4038 to 3921. [2024-11-09 04:16:57,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 2904 states have (on average 1.3367768595041323) internal successors, (3882), 3036 states have internal predecessors, (3882), 871 states have call successors, (871), 142 states have call predecessors, (871), 145 states have return successors, (882), 770 states have call predecessors, (882), 866 states have call successors, (882) [2024-11-09 04:16:57,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 5635 transitions. [2024-11-09 04:16:57,933 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 5635 transitions. Word has length 34 [2024-11-09 04:16:57,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:16:57,933 INFO L471 AbstractCegarLoop]: Abstraction has 3921 states and 5635 transitions. [2024-11-09 04:16:57,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:16:57,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 5635 transitions. [2024-11-09 04:16:57,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 04:16:57,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:16:57,935 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-11-09 04:16:57,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:16:57,935 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:16:57,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:16:57,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1809506471, now seen corresponding path program 1 times [2024-11-09 04:16:57,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:16:57,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982260865] [2024-11-09 04:16:57,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:16:57,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:16:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:59,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:16:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:59,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 04:16:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:59,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:16:59,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:16:59,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982260865] [2024-11-09 04:16:59,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982260865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:16:59,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:16:59,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:16:59,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493045591] [2024-11-09 04:16:59,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:16:59,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:16:59,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:16:59,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:16:59,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:16:59,539 INFO L87 Difference]: Start difference. First operand 3921 states and 5635 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)