./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.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 d9b118296c3c6ba241fa831bfdb5289a0072e9871a56ce58ee16beb68bb5aa55 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:23:20,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:23:20,818 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:23:20,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:23:20,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:23:20,839 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:23:20,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:23:20,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:23:20,840 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:23:20,840 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:23:20,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:23:20,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:23:20,841 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:23:20,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:23:20,842 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:23:20,842 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:23:20,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:23:20,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:23:20,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:23:20,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:23:20,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:23:20,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:23:20,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:23:20,843 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:23:20,843 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:23:20,843 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:23:20,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:23:20,843 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:23:20,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:23:20,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:23:20,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:23:20,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:23:20,844 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:23:20,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:23:20,844 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:23:20,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:23:20,844 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:23:20,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:23:20,844 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:23:20,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:23:20,845 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> d9b118296c3c6ba241fa831bfdb5289a0072e9871a56ce58ee16beb68bb5aa55 [2025-03-08 18:23:21,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:23:21,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:23:21,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:23:21,096 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:23:21,096 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:23:21,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2025-03-08 18:23:22,238 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94e80479c/09c0746030a340bc850510a0b7435dca/FLAG2ebbef2f9 [2025-03-08 18:23:22,591 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:23:22,592 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2025-03-08 18:23:22,623 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94e80479c/09c0746030a340bc850510a0b7435dca/FLAG2ebbef2f9 [2025-03-08 18:23:22,803 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94e80479c/09c0746030a340bc850510a0b7435dca [2025-03-08 18:23:22,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:23:22,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:23:22,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:23:22,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:23:22,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:23:22,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:23:22" (1/1) ... [2025-03-08 18:23:22,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46b07572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:22, skipping insertion in model container [2025-03-08 18:23:22,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:23:22" (1/1) ... [2025-03-08 18:23:22,864 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:23:23,389 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-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i[146121,146134] [2025-03-08 18:23:23,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:23:23,470 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:23:23,646 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-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i[146121,146134] [2025-03-08 18:23:23,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:23:23,699 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:23:23,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23 WrapperNode [2025-03-08 18:23:23,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:23:23,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:23:23,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:23:23,701 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:23:23,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (1/1) ... [2025-03-08 18:23:23,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (1/1) ... [2025-03-08 18:23:23,786 INFO L138 Inliner]: procedures = 82, calls = 541, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 2109 [2025-03-08 18:23:23,787 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:23:23,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:23:23,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:23:23,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:23:23,795 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (1/1) ... [2025-03-08 18:23:23,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (1/1) ... [2025-03-08 18:23:23,808 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (1/1) ... [2025-03-08 18:23:23,874 INFO L175 MemorySlicer]: Split 361 memory accesses to 21 slices as follows [2, 2, 7, 1, 1, 9, 9, 5, 8, 8, 8, 1, 1, 48, 7, 69, 7, 2, 7, 8, 151]. 42 percent of accesses are in the largest equivalence class. The 110 initializations are split as follows [2, 0, 7, 1, 1, 9, 9, 0, 8, 8, 8, 0, 0, 14, 7, 0, 7, 0, 7, 8, 14]. The 183 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 13, 0, 69, 0, 0, 0, 0, 100]. [2025-03-08 18:23:23,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (1/1) ... [2025-03-08 18:23:23,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (1/1) ... [2025-03-08 18:23:23,925 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (1/1) ... [2025-03-08 18:23:23,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (1/1) ... [2025-03-08 18:23:23,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (1/1) ... [2025-03-08 18:23:23,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (1/1) ... [2025-03-08 18:23:24,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:23:24,003 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:23:24,003 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:23:24,003 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:23:24,005 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (1/1) ... [2025-03-08 18:23:24,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:23:24,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:23:24,030 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) [2025-03-08 18:23:24,034 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 [2025-03-08 18:23:24,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:23:24,053 INFO L130 BoogieDeclarations]: Found specification of procedure ir_init [2025-03-08 18:23:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_init [2025-03-08 18:23:24,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:23:24,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:23:24,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:23:24,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:23:24,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:23:24,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 18:23:24,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 18:23:24,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-08 18:23:24,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-03-08 18:23:24,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-03-08 18:23:24,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-03-08 18:23:24,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-03-08 18:23:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-03-08 18:23:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-03-08 18:23:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-03-08 18:23:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-03-08 18:23:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2025-03-08 18:23:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2025-03-08 18:23:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2025-03-08 18:23:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2025-03-08 18:23:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2025-03-08 18:23:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:23:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:23:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:23:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:23:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:23:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure ir_exit [2025-03-08 18:23:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_exit [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2025-03-08 18:23:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-03-08 18:23:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-03-08 18:23:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:23:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:23:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:23:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:23:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:23:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 18:23:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-08 18:23:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-08 18:23:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-03-08 18:23:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-03-08 18:23:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2025-03-08 18:23:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2025-03-08 18:23:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-03-08 18:23:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2025-03-08 18:23:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2025-03-08 18:23:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2025-03-08 18:23:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2025-03-08 18:23:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:23:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2025-03-08 18:23:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2025-03-08 18:23:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2025-03-08 18:23:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure ir_xbof_change [2025-03-08 18:23:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_xbof_change [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2025-03-08 18:23:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2025-03-08 18:23:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 18:23:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 18:23:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 18:23:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 18:23:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 18:23:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 18:23:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 18:23:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-08 18:23:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-08 18:23:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-08 18:23:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-03-08 18:23:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:23:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:23:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:23:24,386 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:23:24,387 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:23:24,445 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5147: havoc usb_serial_register_#t~nondet168#1; [2025-03-08 18:23:24,445 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5136: havoc usb_register_driver_#t~nondet166#1; [2025-03-08 18:23:24,475 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3726: havoc #t~mem11;havoc #t~bitwise12; [2025-03-08 18:23:24,493 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5075: havoc #t~malloc156.base, #t~malloc156.offset; [2025-03-08 18:23:24,496 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2025-03-08 18:23:24,542 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4096: assume false; [2025-03-08 18:23:24,542 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4096: assume !false; [2025-03-08 18:23:24,570 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5102: havoc #t~nondet161; [2025-03-08 18:23:24,576 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5089: havoc #t~nondet159; [2025-03-08 18:23:24,584 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5078: havoc __kmalloc_#t~ret157#1.base, __kmalloc_#t~ret157#1.offset; [2025-03-08 18:23:24,586 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5098: havoc #t~ret160.base, #t~ret160.offset; [2025-03-08 18:23:29,989 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4236: assume false; [2025-03-08 18:23:29,989 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4236: assume !false; [2025-03-08 18:23:29,989 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5129: havoc usb_control_msg_#t~nondet165#1; [2025-03-08 18:23:29,989 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5064: havoc __kfifo_out_#t~nondet152#1; [2025-03-08 18:23:29,989 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5068: havoc __kfifo_out_r_#t~nondet153#1; [2025-03-08 18:23:29,989 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4514: assume false; [2025-03-08 18:23:29,989 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4514: assume !false; [2025-03-08 18:23:29,989 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5143: havoc usb_serial_generic_open_#t~nondet167#1; [2025-03-08 18:23:29,990 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5112: havoc tty_get_baud_rate_#t~nondet162#1; [2025-03-08 18:23:29,990 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5082: havoc _raw_spin_lock_irqsave_#t~nondet158#1; [2025-03-08 18:23:29,990 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5116: havoc tty_insert_flip_string_fixed_flag_#t~nondet163#1; [2025-03-08 18:23:29,990 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4853: assume false; [2025-03-08 18:23:29,990 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4853: assume !false; [2025-03-08 18:23:29,990 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5151: havoc usb_submit_urb_#t~nondet169#1; [2025-03-08 18:23:29,990 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5122: havoc tty_port_tty_get_#t~ret164#1.base, tty_port_tty_get_#t~ret164#1.offset; [2025-03-08 18:23:30,073 INFO L? ?]: Removed 481 outVars from TransFormulas that were not future-live. [2025-03-08 18:23:30,073 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:23:30,099 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:23:30,102 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:23:30,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:23:30 BoogieIcfgContainer [2025-03-08 18:23:30,103 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:23:30,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:23:30,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:23:30,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:23:30,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:23:22" (1/3) ... [2025-03-08 18:23:30,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c13b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:23:30, skipping insertion in model container [2025-03-08 18:23:30,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:23:23" (2/3) ... [2025-03-08 18:23:30,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c13b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:23:30, skipping insertion in model container [2025-03-08 18:23:30,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:23:30" (3/3) ... [2025-03-08 18:23:30,110 INFO L128 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2025-03-08 18:23:30,120 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:23:30,123 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i that has 16 procedures, 367 locations, 1 initial locations, 22 loop locations, and 1 error locations. [2025-03-08 18:23:30,172 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:23:30,180 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;@2d827dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:23:30,183 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:23:30,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 366 states, 305 states have (on average 1.4426229508196722) internal successors, (440), 314 states have internal predecessors, (440), 46 states have call successors, (46), 15 states have call predecessors, (46), 14 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-08 18:23:30,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-08 18:23:30,191 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:23:30,191 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:23:30,191 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:23:30,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:23:30,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2139253390, now seen corresponding path program 1 times [2025-03-08 18:23:30,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:23:30,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378179319] [2025-03-08 18:23:30,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:23:30,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:23:33,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-08 18:23:34,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-08 18:23:34,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:23:34,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:23:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 18:23:34,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:23:34,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378179319] [2025-03-08 18:23:34,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378179319] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:23:34,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:23:34,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 18:23:34,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149735418] [2025-03-08 18:23:34,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:23:34,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 18:23:34,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:23:34,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 18:23:34,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:23:34,559 INFO L87 Difference]: Start difference. First operand has 366 states, 305 states have (on average 1.4426229508196722) internal successors, (440), 314 states have internal predecessors, (440), 46 states have call successors, (46), 15 states have call predecessors, (46), 14 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2025-03-08 18:23:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:23:34,986 INFO L93 Difference]: Finished difference Result 1044 states and 1531 transitions. [2025-03-08 18:23:34,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 18:23:34,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 18 [2025-03-08 18:23:34,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:23:34,999 INFO L225 Difference]: With dead ends: 1044 [2025-03-08 18:23:34,999 INFO L226 Difference]: Without dead ends: 690 [2025-03-08 18:23:35,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:23:35,004 INFO L435 NwaCegarLoop]: 524 mSDtfsCounter, 487 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 18:23:35,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 972 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 18:23:35,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2025-03-08 18:23:35,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 687. [2025-03-08 18:23:35,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 577 states have (on average 1.3604852686308493) internal successors, (785), 587 states have internal predecessors, (785), 84 states have call successors, (84), 26 states have call predecessors, (84), 25 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-08 18:23:35,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 950 transitions. [2025-03-08 18:23:35,075 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 950 transitions. Word has length 18 [2025-03-08 18:23:35,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:23:35,075 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 950 transitions. [2025-03-08 18:23:35,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2025-03-08 18:23:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 950 transitions. [2025-03-08 18:23:35,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-08 18:23:35,077 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:23:35,077 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:23:35,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 18:23:35,077 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:23:35,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:23:35,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1891792291, now seen corresponding path program 1 times [2025-03-08 18:23:35,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:23:35,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373211025] [2025-03-08 18:23:35,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:23:35,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:23:38,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-08 18:23:38,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-08 18:23:38,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:23:38,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:23:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 18:23:38,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:23:38,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373211025] [2025-03-08 18:23:38,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373211025] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:23:38,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:23:38,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 18:23:38,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196606709] [2025-03-08 18:23:38,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:23:38,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 18:23:38,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:23:38,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 18:23:38,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:23:38,960 INFO L87 Difference]: Start difference. First operand 687 states and 950 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2025-03-08 18:23:39,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:23:39,110 INFO L93 Difference]: Finished difference Result 689 states and 951 transitions. [2025-03-08 18:23:39,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 18:23:39,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 19 [2025-03-08 18:23:39,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:23:39,115 INFO L225 Difference]: With dead ends: 689 [2025-03-08 18:23:39,115 INFO L226 Difference]: Without dead ends: 677 [2025-03-08 18:23:39,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:23:39,118 INFO L435 NwaCegarLoop]: 477 mSDtfsCounter, 482 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 18:23:39,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 477 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 18:23:39,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2025-03-08 18:23:39,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 677. [2025-03-08 18:23:39,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 571 states have (on average 1.3572679509632224) internal successors, (775), 579 states have internal predecessors, (775), 81 states have call successors, (81), 25 states have call predecessors, (81), 24 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2025-03-08 18:23:39,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 935 transitions. [2025-03-08 18:23:39,144 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 935 transitions. Word has length 19 [2025-03-08 18:23:39,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:23:39,144 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 935 transitions. [2025-03-08 18:23:39,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2025-03-08 18:23:39,145 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 935 transitions. [2025-03-08 18:23:39,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-08 18:23:39,149 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:23:39,150 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:23:39,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 18:23:39,151 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:23:39,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:23:39,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1380453898, now seen corresponding path program 1 times [2025-03-08 18:23:39,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:23:39,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119044815] [2025-03-08 18:23:39,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:23:39,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:23:42,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-08 18:23:42,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-08 18:23:42,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:23:42,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:23:43,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 18:23:43,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:23:43,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119044815] [2025-03-08 18:23:43,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119044815] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:23:43,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:23:43,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 18:23:43,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727636375] [2025-03-08 18:23:43,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:23:43,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 18:23:43,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:23:43,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 18:23:43,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 18:23:43,335 INFO L87 Difference]: Start difference. First operand 677 states and 935 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-08 18:23:43,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:23:43,885 INFO L93 Difference]: Finished difference Result 1308 states and 1810 transitions. [2025-03-08 18:23:43,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 18:23:43,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2025-03-08 18:23:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:23:43,891 INFO L225 Difference]: With dead ends: 1308 [2025-03-08 18:23:43,892 INFO L226 Difference]: Without dead ends: 654 [2025-03-08 18:23:43,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 18:23:43,895 INFO L435 NwaCegarLoop]: 473 mSDtfsCounter, 0 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 18:23:43,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1411 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 18:23:43,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2025-03-08 18:23:43,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2025-03-08 18:23:43,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 556 states have (on average 1.356115107913669) internal successors, (754), 561 states have internal predecessors, (754), 74 states have call successors, (74), 24 states have call predecessors, (74), 23 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2025-03-08 18:23:43,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 900 transitions. [2025-03-08 18:23:43,926 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 900 transitions. Word has length 77 [2025-03-08 18:23:43,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:23:43,926 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 900 transitions. [2025-03-08 18:23:43,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-08 18:23:43,926 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 900 transitions. [2025-03-08 18:23:43,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 18:23:43,929 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:23:43,929 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:23:43,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 18:23:43,929 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:23:43,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:23:43,930 INFO L85 PathProgramCache]: Analyzing trace with hash -2125835653, now seen corresponding path program 1 times [2025-03-08 18:23:43,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:23:43,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284616179] [2025-03-08 18:23:43,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:23:43,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:23:47,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 18:23:47,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 18:23:47,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:23:47,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:23:48,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 18:23:48,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:23:48,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284616179] [2025-03-08 18:23:48,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284616179] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:23:48,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:23:48,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 18:23:48,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573721343] [2025-03-08 18:23:48,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:23:48,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 18:23:48,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:23:48,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 18:23:48,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 18:23:48,539 INFO L87 Difference]: Start difference. First operand 654 states and 900 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-08 18:23:49,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:23:49,449 INFO L93 Difference]: Finished difference Result 1005 states and 1385 transitions. [2025-03-08 18:23:49,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 18:23:49,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 74 [2025-03-08 18:23:49,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:23:49,454 INFO L225 Difference]: With dead ends: 1005 [2025-03-08 18:23:49,455 INFO L226 Difference]: Without dead ends: 668 [2025-03-08 18:23:49,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 18:23:49,458 INFO L435 NwaCegarLoop]: 472 mSDtfsCounter, 0 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 18:23:49,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2825 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 18:23:49,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2025-03-08 18:23:49,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 668. [2025-03-08 18:23:49,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 566 states have (on average 1.3498233215547704) internal successors, (764), 571 states have internal predecessors, (764), 74 states have call successors, (74), 24 states have call predecessors, (74), 27 states have return successors, (80), 75 states have call predecessors, (80), 72 states have call successors, (80) [2025-03-08 18:23:49,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 918 transitions. [2025-03-08 18:23:49,488 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 918 transitions. Word has length 74 [2025-03-08 18:23:49,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:23:49,488 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 918 transitions. [2025-03-08 18:23:49,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-08 18:23:49,492 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 918 transitions. [2025-03-08 18:23:49,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 18:23:49,494 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:23:49,494 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:23:49,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 18:23:49,494 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:23:49,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:23:49,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1851076039, now seen corresponding path program 1 times [2025-03-08 18:23:49,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:23:49,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211086679] [2025-03-08 18:23:49,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:23:49,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:23:52,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 18:23:53,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 18:23:53,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:23:53,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:23:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 18:23:54,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:23:54,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211086679] [2025-03-08 18:23:54,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211086679] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:23:54,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:23:54,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 18:23:54,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636459013] [2025-03-08 18:23:54,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:23:54,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 18:23:54,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:23:54,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 18:23:54,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 18:23:54,198 INFO L87 Difference]: Start difference. First operand 668 states and 918 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-08 18:23:55,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:23:55,842 INFO L93 Difference]: Finished difference Result 1013 states and 1393 transitions. [2025-03-08 18:23:55,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 18:23:55,843 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 74 [2025-03-08 18:23:55,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:23:55,846 INFO L225 Difference]: With dead ends: 1013 [2025-03-08 18:23:55,846 INFO L226 Difference]: Without dead ends: 669 [2025-03-08 18:23:55,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 18:23:55,848 INFO L435 NwaCegarLoop]: 468 mSDtfsCounter, 17 mSDsluCounter, 3240 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-08 18:23:55,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3708 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-08 18:23:55,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2025-03-08 18:23:55,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 668. [2025-03-08 18:23:55,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 566 states have (on average 1.3480565371024735) internal successors, (763), 571 states have internal predecessors, (763), 74 states have call successors, (74), 24 states have call predecessors, (74), 27 states have return successors, (80), 75 states have call predecessors, (80), 72 states have call successors, (80) [2025-03-08 18:23:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 917 transitions. [2025-03-08 18:23:55,871 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 917 transitions. Word has length 74 [2025-03-08 18:23:55,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:23:55,871 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 917 transitions. [2025-03-08 18:23:55,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-08 18:23:55,871 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 917 transitions. [2025-03-08 18:23:55,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-08 18:23:55,873 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:23:55,873 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:23:55,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 18:23:55,874 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:23:55,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:23:55,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1561034806, now seen corresponding path program 1 times [2025-03-08 18:23:55,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:23:55,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419090995] [2025-03-08 18:23:55,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:23:55,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:23:59,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-08 18:23:59,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-08 18:23:59,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:23:59,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:23:59,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 18:23:59,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:23:59,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419090995] [2025-03-08 18:23:59,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419090995] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:23:59,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:23:59,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 18:23:59,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124999473] [2025-03-08 18:23:59,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:23:59,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 18:23:59,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:23:59,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 18:23:59,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 18:23:59,960 INFO L87 Difference]: Start difference. First operand 668 states and 917 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2025-03-08 18:24:03,999 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 [] [2025-03-08 18:24:06,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:24:06,634 INFO L93 Difference]: Finished difference Result 1013 states and 1392 transitions. [2025-03-08 18:24:06,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 18:24:06,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 77 [2025-03-08 18:24:06,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:24:06,639 INFO L225 Difference]: With dead ends: 1013 [2025-03-08 18:24:06,640 INFO L226 Difference]: Without dead ends: 1010 [2025-03-08 18:24:06,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 18:24:06,641 INFO L435 NwaCegarLoop]: 868 mSDtfsCounter, 855 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2025-03-08 18:24:06,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1839 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 220 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2025-03-08 18:24:06,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2025-03-08 18:24:06,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 996. [2025-03-08 18:24:06,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 845 states have (on average 1.3514792899408283) internal successors, (1142), 853 states have internal predecessors, (1142), 111 states have call successors, (111), 34 states have call predecessors, (111), 39 states have return successors, (123), 113 states have call predecessors, (123), 109 states have call successors, (123) [2025-03-08 18:24:06,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1376 transitions. [2025-03-08 18:24:06,676 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1376 transitions. Word has length 77 [2025-03-08 18:24:06,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:24:06,676 INFO L471 AbstractCegarLoop]: Abstraction has 996 states and 1376 transitions. [2025-03-08 18:24:06,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2025-03-08 18:24:06,676 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1376 transitions. [2025-03-08 18:24:06,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-03-08 18:24:06,678 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:24:06,678 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:24:06,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 18:24:06,678 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:24:06,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:24:06,678 INFO L85 PathProgramCache]: Analyzing trace with hash -794136127, now seen corresponding path program 1 times [2025-03-08 18:24:06,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:24:06,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247768016] [2025-03-08 18:24:06,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:24:06,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:24:10,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-08 18:24:10,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-08 18:24:10,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:24:10,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:24:10,899 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 18:24:10,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:24:10,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247768016] [2025-03-08 18:24:10,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247768016] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:24:10,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:24:10,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 18:24:10,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347232232] [2025-03-08 18:24:10,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:24:10,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 18:24:10,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:24:10,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 18:24:10,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:24:10,902 INFO L87 Difference]: Start difference. First operand 996 states and 1376 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-08 18:24:12,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:24:12,463 INFO L93 Difference]: Finished difference Result 2960 states and 4098 transitions. [2025-03-08 18:24:12,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 18:24:12,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2025-03-08 18:24:12,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:24:12,474 INFO L225 Difference]: With dead ends: 2960 [2025-03-08 18:24:12,474 INFO L226 Difference]: Without dead ends: 1987 [2025-03-08 18:24:12,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-08 18:24:12,478 INFO L435 NwaCegarLoop]: 462 mSDtfsCounter, 490 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 18:24:12,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 1794 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 18:24:12,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2025-03-08 18:24:12,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1939. [2025-03-08 18:24:12,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1939 states, 1646 states have (on average 1.359052247873633) internal successors, (2237), 1663 states have internal predecessors, (2237), 215 states have call successors, (215), 63 states have call predecessors, (215), 77 states have return successors, (244), 221 states have call predecessors, (244), 213 states have call successors, (244) [2025-03-08 18:24:12,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 2696 transitions. [2025-03-08 18:24:12,552 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 2696 transitions. Word has length 93 [2025-03-08 18:24:12,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:24:12,552 INFO L471 AbstractCegarLoop]: Abstraction has 1939 states and 2696 transitions. [2025-03-08 18:24:12,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-08 18:24:12,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 2696 transitions. [2025-03-08 18:24:12,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-03-08 18:24:12,558 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:24:12,558 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:24:12,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 18:24:12,558 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:24:12,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:24:12,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1927993599, now seen corresponding path program 1 times [2025-03-08 18:24:12,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:24:12,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289629155] [2025-03-08 18:24:12,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:24:12,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:24:15,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-08 18:24:16,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-08 18:24:16,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:24:16,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:24:18,244 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 18:24:18,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:24:18,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289629155] [2025-03-08 18:24:18,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289629155] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:24:18,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915650345] [2025-03-08 18:24:18,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:24:18,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:24:18,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:24:18,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:24:18,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 18:24:22,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-08 18:24:22,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-08 18:24:22,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:24:22,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:24:22,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 3167 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 18:24:22,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:24:22,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:24:22,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-08 18:24:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 18:24:24,226 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:24:24,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915650345] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:24:24,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:24:24,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2025-03-08 18:24:24,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747246339] [2025-03-08 18:24:24,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:24:24,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 18:24:24,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:24:24,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 18:24:24,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2025-03-08 18:24:24,227 INFO L87 Difference]: Start difference. First operand 1939 states and 2696 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 18:24:25,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:24:25,044 INFO L93 Difference]: Finished difference Result 3843 states and 5344 transitions. [2025-03-08 18:24:25,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 18:24:25,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2025-03-08 18:24:25,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:24:25,051 INFO L225 Difference]: With dead ends: 3843 [2025-03-08 18:24:25,051 INFO L226 Difference]: Without dead ends: 1897 [2025-03-08 18:24:25,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2025-03-08 18:24:25,055 INFO L435 NwaCegarLoop]: 451 mSDtfsCounter, 458 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 18:24:25,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 900 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 18:24:25,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2025-03-08 18:24:25,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1897. [2025-03-08 18:24:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1897 states, 1613 states have (on average 1.3459392436453812) internal successors, (2171), 1627 states have internal predecessors, (2171), 209 states have call successors, (209), 63 states have call predecessors, (209), 74 states have return successors, (235), 215 states have call predecessors, (235), 207 states have call successors, (235) [2025-03-08 18:24:25,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2615 transitions. [2025-03-08 18:24:25,113 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2615 transitions. Word has length 93 [2025-03-08 18:24:25,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:24:25,113 INFO L471 AbstractCegarLoop]: Abstraction has 1897 states and 2615 transitions. [2025-03-08 18:24:25,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-08 18:24:25,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2615 transitions. [2025-03-08 18:24:25,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-08 18:24:25,116 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:24:25,116 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:24:25,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 18:24:25,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:24:25,317 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:24:25,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:24:25,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1755108601, now seen corresponding path program 1 times [2025-03-08 18:24:25,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:24:25,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297142517] [2025-03-08 18:24:25,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:24:25,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:24:28,639 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-08 18:24:28,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-08 18:24:28,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:24:28,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:24:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 18:24:30,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:24:30,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297142517] [2025-03-08 18:24:30,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297142517] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:24:30,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818343720] [2025-03-08 18:24:30,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:24:30,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:24:30,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:24:30,808 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:24:30,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 18:24:34,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-08 18:24:35,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-08 18:24:35,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:24:35,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:24:35,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 3174 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-08 18:24:35,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:24:35,916 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 18:24:35,916 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 18:24:37,140 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 18:24:37,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818343720] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 18:24:37,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 18:24:37,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 16 [2025-03-08 18:24:37,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281807463] [2025-03-08 18:24:37,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 18:24:37,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-08 18:24:37,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:24:37,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-08 18:24:37,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2025-03-08 18:24:37,142 INFO L87 Difference]: Start difference. First operand 1897 states and 2615 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2025-03-08 18:24:41,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:24:41,048 INFO L93 Difference]: Finished difference Result 2653 states and 3647 transitions. [2025-03-08 18:24:41,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 18:24:41,049 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) Word has length 101 [2025-03-08 18:24:41,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:24:41,057 INFO L225 Difference]: With dead ends: 2653 [2025-03-08 18:24:41,057 INFO L226 Difference]: Without dead ends: 1362 [2025-03-08 18:24:41,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2025-03-08 18:24:41,061 INFO L435 NwaCegarLoop]: 459 mSDtfsCounter, 26 mSDsluCounter, 6355 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6814 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-03-08 18:24:41,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6814 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-03-08 18:24:41,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2025-03-08 18:24:41,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1356. [2025-03-08 18:24:41,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1142 states have (on average 1.3336252189141857) internal successors, (1523), 1154 states have internal predecessors, (1523), 153 states have call successors, (153), 55 states have call predecessors, (153), 60 states have return successors, (167), 153 states have call predecessors, (167), 151 states have call successors, (167) [2025-03-08 18:24:41,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1843 transitions. [2025-03-08 18:24:41,101 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1843 transitions. Word has length 101 [2025-03-08 18:24:41,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:24:41,101 INFO L471 AbstractCegarLoop]: Abstraction has 1356 states and 1843 transitions. [2025-03-08 18:24:41,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2025-03-08 18:24:41,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1843 transitions. [2025-03-08 18:24:41,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-08 18:24:41,103 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:24:41,103 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:24:41,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 18:24:41,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-03-08 18:24:41,304 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:24:41,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:24:41,304 INFO L85 PathProgramCache]: Analyzing trace with hash -977449878, now seen corresponding path program 1 times [2025-03-08 18:24:41,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:24:41,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697863288] [2025-03-08 18:24:41,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:24:41,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:24:44,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-08 18:24:44,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-08 18:24:44,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:24:44,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:24:45,705 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 18:24:45,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:24:45,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697863288] [2025-03-08 18:24:45,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697863288] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:24:45,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:24:45,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 18:24:45,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434646385] [2025-03-08 18:24:45,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:24:45,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 18:24:45,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:24:45,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 18:24:45,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:24:45,706 INFO L87 Difference]: Start difference. First operand 1356 states and 1843 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-08 18:24:49,752 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 []