./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 04:16:18,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:16:18,241 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 04:16:18,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:16:18,255 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:16:18,277 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:16:18,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:16:18,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:16:18,280 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 04:16:18,281 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 04:16:18,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:16:18,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:16:18,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 04:16:18,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 04:16:18,284 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 04:16:18,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:16:18,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:16:18,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:16:18,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:16:18,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:16:18,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:16:18,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:16:18,287 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:16:18,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:16:18,287 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:16:18,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:16:18,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:16:18,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:16:18,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:16:18,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:16:18,289 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:16:18,289 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:16:18,289 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:16:18,289 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 04:16:18,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:16:18,290 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:16:18,290 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 04:16:18,290 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 04:16:18,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:16:18,290 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 [2024-11-09 04:16:18,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:16:18,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:16:18,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:16:18,539 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:16:18,540 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:16:18,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-11-09 04:16:19,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:16:20,412 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:16:20,413 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-11-09 04:16:20,448 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b108b6b4/4d60d102db8f4f279e08fe3d97a57a79/FLAGc0e180f70 [2024-11-09 04:16:20,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b108b6b4/4d60d102db8f4f279e08fe3d97a57a79 [2024-11-09 04:16:20,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:16:20,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:16:20,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:16:20,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:16:20,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:16:20,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:16:20" (1/1) ... [2024-11-09 04:16:20,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1501c06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:20, skipping insertion in model container [2024-11-09 04:16:20,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:16:20" (1/1) ... [2024-11-09 04:16:20,662 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:16:21,861 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2024-11-09 04:16:22,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:16:22,445 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:16:22,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5441] [2024-11-09 04:16:22,554 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5448] [2024-11-09 04:16:22,556 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5456-5457] [2024-11-09 04:16:22,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [5485] [2024-11-09 04:16:22,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0": "+m" (v->counter)); [5492] [2024-11-09 04:16:22,575 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2024-11-09 04:16:22,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/6225/dscv_tempdir/dscv/ri/144_2a/drivers/net/can/usb/ems_usb.o.c.prepared"), "i" (546), "i" (12UL)); [6159-6160] [2024-11-09 04:16:22,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:16:22,756 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:16:22,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22 WrapperNode [2024-11-09 04:16:22,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:16:22,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:16:22,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:16:22,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:16:22,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (1/1) ... [2024-11-09 04:16:22,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (1/1) ... [2024-11-09 04:16:22,916 INFO L138 Inliner]: procedures = 168, calls = 765, calls flagged for inlining = 78, calls inlined = 78, statements flattened = 2300 [2024-11-09 04:16:22,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:16:22,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:16:22,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:16:22,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:16:22,933 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (1/1) ... [2024-11-09 04:16:22,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (1/1) ... [2024-11-09 04:16:22,945 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (1/1) ... [2024-11-09 04:16:23,332 INFO L175 MemorySlicer]: Split 454 memory accesses to 8 slices as follows [2, 44, 20, 342, 20, 9, 9, 8]. 75 percent of accesses are in the largest equivalence class. The 44 initializations are split as follows [2, 0, 0, 34, 0, 0, 0, 8]. The 224 writes are split as follows [0, 44, 11, 164, 0, 5, 0, 0]. [2024-11-09 04:16:23,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (1/1) ... [2024-11-09 04:16:23,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (1/1) ... [2024-11-09 04:16:23,432 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (1/1) ... [2024-11-09 04:16:23,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (1/1) ... [2024-11-09 04:16:23,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (1/1) ... [2024-11-09 04:16:23,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (1/1) ... [2024-11-09 04:16:23,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:16:23,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:16:23,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:16:23,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:16:23,480 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (1/1) ... [2024-11-09 04:16:23,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:16:23,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 04:16:23,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 04:16:23,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 04:16:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-09 04:16:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-09 04:16:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 04:16:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 04:16:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 04:16:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 04:16:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 04:16:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 04:16:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-09 04:16:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-09 04:16:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2024-11-09 04:16:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2024-11-09 04:16:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2024-11-09 04:16:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2024-11-09 04:16:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2024-11-09 04:16:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2024-11-09 04:16:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2024-11-09 04:16:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2024-11-09 04:16:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-09 04:16:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-09 04:16:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-09 04:16:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-09 04:16:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-09 04:16:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-09 04:16:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-09 04:16:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-09 04:16:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 04:16:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 04:16:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 04:16:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 04:16:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 04:16:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 04:16:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-09 04:16:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-09 04:16:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 04:16:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 04:16:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 04:16:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 04:16:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 04:16:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 04:16:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 04:16:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 04:16:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 04:16:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-09 04:16:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-09 04:16:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-09 04:16:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_bulk_callback [2024-11-09 04:16:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_bulk_callback [2024-11-09 04:16:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-09 04:16:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-09 04:16:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-09 04:16:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-09 04:16:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2024-11-09 04:16:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2024-11-09 04:16:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-09 04:16:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-09 04:16:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-09 04:16:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-09 04:16:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 04:16:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 04:16:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-09 04:16:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-09 04:16:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-09 04:16:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-09 04:16:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-09 04:16:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-09 04:16:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 04:16:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 04:16:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-09 04:16:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-09 04:16:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 04:16:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 04:16:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 04:16:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 04:16:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 04:16:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 04:16:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 04:16:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-09 04:16:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 04:16:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 04:16:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 04:16:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 04:16:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:16:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:16:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 04:16:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 04:16:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2024-11-09 04:16:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2024-11-09 04:16:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:16:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-09 04:16:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-09 04:16:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-09 04:16:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-09 04:16:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-09 04:16:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-09 04:16:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:16:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-09 04:16:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-09 04:16:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 04:16:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 04:16:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:16:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 04:16:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 04:16:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 04:16:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 04:16:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 04:16:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 04:16:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-09 04:16:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-09 04:16:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2024-11-09 04:16:23,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2024-11-09 04:16:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 04:16:23,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 04:16:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-09 04:16:23,578 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-09 04:16:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-09 04:16:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-09 04:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 04:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 04:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 04:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 04:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 04:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 04:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-09 04:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-09 04:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_disconnect [2024-11-09 04:16:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_disconnect [2024-11-09 04:16:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-09 04:16:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-09 04:16:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-09 04:16:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-09 04:16:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_interrupt_callback [2024-11-09 04:16:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_interrupt_callback [2024-11-09 04:16:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-09 04:16:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-09 04:16:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:16:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2024-11-09 04:16:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2024-11-09 04:16:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_err [2024-11-09 04:16:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_err [2024-11-09 04:16:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 04:16:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 04:16:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-09 04:16:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-09 04:16:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-09 04:16:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-09 04:16:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-09 04:16:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-09 04:16:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 04:16:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 04:16:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-09 04:16:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-09 04:16:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 04:16:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 04:16:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-09 04:16:23,583 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-09 04:16:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-09 04:16:23,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-09 04:16:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-09 04:16:23,583 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-09 04:16:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 04:16:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 04:16:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 04:16:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 04:16:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 04:16:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 04:16:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 04:16:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-09 04:16:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-09 04:16:23,584 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-09 04:16:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-09 04:16:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-09 04:16:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-09 04:16:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-09 04:16:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-09 04:16:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-09 04:16:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-09 04:16:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-09 04:16:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 04:16:23,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 04:16:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:16:23,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:16:23,992 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:16:23,995 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:16:24,055 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 04:16:24,493 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-09 04:16:30,096 INFO L? ?]: Removed 985 outVars from TransFormulas that were not future-live. [2024-11-09 04:16:30,096 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:16:30,118 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:16:30,119 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:16:30,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:16:30 BoogieIcfgContainer [2024-11-09 04:16:30,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:16:30,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:16:30,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:16:30,124 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:16:30,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:16:20" (1/3) ... [2024-11-09 04:16:30,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2647f06e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:16:30, skipping insertion in model container [2024-11-09 04:16:30,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:22" (2/3) ... [2024-11-09 04:16:30,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2647f06e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:16:30, skipping insertion in model container [2024-11-09 04:16:30,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:16:30" (3/3) ... [2024-11-09 04:16:30,126 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-11-09 04:16:30,141 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:16:30,141 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:16:30,242 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:16:30,248 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;@5a81d082, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:16:30,248 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:16:30,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 784 states, 575 states have (on average 1.342608695652174) internal successors, (772), 601 states have internal predecessors, (772), 157 states have call successors, (157), 52 states have call predecessors, (157), 50 states have return successors, (151), 146 states have call predecessors, (151), 151 states have call successors, (151) [2024-11-09 04:16:30,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 04:16:30,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:16:30,264 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:16:30,265 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:16:30,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:16:30,269 INFO L85 PathProgramCache]: Analyzing trace with hash -580361329, now seen corresponding path program 1 times [2024-11-09 04:16:30,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:16:30,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737312028] [2024-11-09 04:16:30,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:16:30,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:16:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:32,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:16:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:32,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:16:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:32,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:16:32,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:16:32,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737312028] [2024-11-09 04:16:32,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737312028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:16:32,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:16:32,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:16:32,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062923829] [2024-11-09 04:16:32,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:16:32,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:16:32,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:16:32,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:16:32,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:16:32,253 INFO L87 Difference]: Start difference. First operand has 784 states, 575 states have (on average 1.342608695652174) internal successors, (772), 601 states have internal predecessors, (772), 157 states have call successors, (157), 52 states have call predecessors, (157), 50 states have return successors, (151), 146 states have call predecessors, (151), 151 states have call successors, (151) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:16:36,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:16:40,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:16:46,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:16:46,477 INFO L93 Difference]: Finished difference Result 2478 states and 3533 transitions. [2024-11-09 04:16:46,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:16:46,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-09 04:16:46,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:16:46,517 INFO L225 Difference]: With dead ends: 2478 [2024-11-09 04:16:46,518 INFO L226 Difference]: Without dead ends: 1675 [2024-11-09 04:16:46,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:16:46,534 INFO L432 NwaCegarLoop]: 849 mSDtfsCounter, 1506 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 457 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 2078 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:16:46,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 2078 Invalid, 1236 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [457 Valid, 777 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2024-11-09 04:16:46,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2024-11-09 04:16:46,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1505. [2024-11-09 04:16:46,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1113 states have (on average 1.3036837376460018) internal successors, (1451), 1145 states have internal predecessors, (1451), 293 states have call successors, (293), 99 states have call predecessors, (293), 98 states have return successors, (288), 278 states have call predecessors, (288), 288 states have call successors, (288) [2024-11-09 04:16:46,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2032 transitions. [2024-11-09 04:16:46,720 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2032 transitions. Word has length 28 [2024-11-09 04:16:46,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:16:46,721 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 2032 transitions. [2024-11-09 04:16:46,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:16:46,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2032 transitions. [2024-11-09 04:16:46,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 04:16:46,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:16:46,728 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:16:46,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:16:46,728 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:16:46,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:16:46,729 INFO L85 PathProgramCache]: Analyzing trace with hash -688431053, now seen corresponding path program 1 times [2024-11-09 04:16:46,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:16:46,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447260799] [2024-11-09 04:16:46,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:16:46,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:16:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:48,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:16:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:48,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:16:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:48,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 04:16:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:48,448 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:16:48,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:16:48,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447260799] [2024-11-09 04:16:48,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447260799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:16:48,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:16:48,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:16:48,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084523199] [2024-11-09 04:16:48,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:16:48,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:16:48,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:16:48,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:16:48,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:16:48,458 INFO L87 Difference]: Start difference. First operand 1505 states and 2032 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:16:52,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:16:59,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:16:59,864 INFO L93 Difference]: Finished difference Result 4840 states and 6747 transitions. [2024-11-09 04:16:59,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:16:59,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-11-09 04:16:59,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:16:59,883 INFO L225 Difference]: With dead ends: 4840 [2024-11-09 04:16:59,884 INFO L226 Difference]: Without dead ends: 3342 [2024-11-09 04:16:59,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:16:59,891 INFO L432 NwaCegarLoop]: 1269 mSDtfsCounter, 1335 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 353 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 2692 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:16:59,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 2692 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 969 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2024-11-09 04:16:59,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3342 states. [2024-11-09 04:17:00,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3342 to 3116. [2024-11-09 04:17:00,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2306 states have (on average 1.3035559410234172) internal successors, (3006), 2378 states have internal predecessors, (3006), 599 states have call successors, (599), 197 states have call predecessors, (599), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-11-09 04:17:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4275 transitions. [2024-11-09 04:17:00,035 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4275 transitions. Word has length 38 [2024-11-09 04:17:00,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:00,036 INFO L471 AbstractCegarLoop]: Abstraction has 3116 states and 4275 transitions. [2024-11-09 04:17:00,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:00,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4275 transitions. [2024-11-09 04:17:00,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 04:17:00,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:00,041 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:17:00,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:17:00,041 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:00,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:00,042 INFO L85 PathProgramCache]: Analyzing trace with hash 133145803, now seen corresponding path program 1 times [2024-11-09 04:17:00,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:00,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891368846] [2024-11-09 04:17:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:00,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:01,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:01,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:01,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 04:17:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:01,526 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:17:01,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:01,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891368846] [2024-11-09 04:17:01,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891368846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:01,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:01,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:01,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708910410] [2024-11-09 04:17:01,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:01,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:01,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:01,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:01,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:01,530 INFO L87 Difference]: Start difference. First operand 3116 states and 4275 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:05,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:09,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:09,574 INFO L93 Difference]: Finished difference Result 3334 states and 4638 transitions. [2024-11-09 04:17:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:17:09,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-11-09 04:17:09,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:09,593 INFO L225 Difference]: With dead ends: 3334 [2024-11-09 04:17:09,593 INFO L226 Difference]: Without dead ends: 3331 [2024-11-09 04:17:09,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:09,599 INFO L432 NwaCegarLoop]: 821 mSDtfsCounter, 1229 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 285 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:09,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 1275 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2024-11-09 04:17:09,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3331 states. [2024-11-09 04:17:09,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3331 to 3115. [2024-11-09 04:17:09,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 2306 states have (on average 1.303122289679098) internal successors, (3005), 2377 states have internal predecessors, (3005), 598 states have call successors, (598), 197 states have call predecessors, (598), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-11-09 04:17:09,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 4273 transitions. [2024-11-09 04:17:09,763 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 4273 transitions. Word has length 39 [2024-11-09 04:17:09,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:09,765 INFO L471 AbstractCegarLoop]: Abstraction has 3115 states and 4273 transitions. [2024-11-09 04:17:09,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:09,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 4273 transitions. [2024-11-09 04:17:09,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 04:17:09,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:09,768 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:17:09,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:17:09,768 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:09,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:09,769 INFO L85 PathProgramCache]: Analyzing trace with hash -167770570, now seen corresponding path program 1 times [2024-11-09 04:17:09,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:09,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232306228] [2024-11-09 04:17:09,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:09,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:11,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:11,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:11,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 04:17:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:11,056 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:17:11,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:11,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232306228] [2024-11-09 04:17:11,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232306228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:11,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:11,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:11,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389573792] [2024-11-09 04:17:11,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:11,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:11,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:11,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:11,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:11,058 INFO L87 Difference]: Start difference. First operand 3115 states and 4273 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:15,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:18,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:18,774 INFO L93 Difference]: Finished difference Result 3333 states and 4636 transitions. [2024-11-09 04:17:18,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:17:18,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-11-09 04:17:18,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:18,788 INFO L225 Difference]: With dead ends: 3333 [2024-11-09 04:17:18,788 INFO L226 Difference]: Without dead ends: 3330 [2024-11-09 04:17:18,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:18,790 INFO L432 NwaCegarLoop]: 829 mSDtfsCounter, 1219 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 277 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:18,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 1281 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2024-11-09 04:17:18,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2024-11-09 04:17:18,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3114. [2024-11-09 04:17:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 2306 states have (on average 1.3026886383347789) internal successors, (3004), 2376 states have internal predecessors, (3004), 597 states have call successors, (597), 197 states have call predecessors, (597), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-11-09 04:17:18,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 4271 transitions. [2024-11-09 04:17:18,905 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 4271 transitions. Word has length 40 [2024-11-09 04:17:18,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:18,905 INFO L471 AbstractCegarLoop]: Abstraction has 3114 states and 4271 transitions. [2024-11-09 04:17:18,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:18,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 4271 transitions. [2024-11-09 04:17:18,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 04:17:18,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:18,906 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:17:18,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:17:18,906 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:18,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:18,907 INFO L85 PathProgramCache]: Analyzing trace with hash -906238674, now seen corresponding path program 1 times [2024-11-09 04:17:18,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:18,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722238681] [2024-11-09 04:17:18,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:18,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:20,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:20,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:20,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 04:17:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:20,103 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:17:20,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:20,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722238681] [2024-11-09 04:17:20,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722238681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:20,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:20,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:20,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389766733] [2024-11-09 04:17:20,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:20,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:20,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:20,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:20,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:20,106 INFO L87 Difference]: Start difference. First operand 3114 states and 4271 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:24,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:28,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:28,025 INFO L93 Difference]: Finished difference Result 3332 states and 4634 transitions. [2024-11-09 04:17:28,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:17:28,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2024-11-09 04:17:28,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:28,057 INFO L225 Difference]: With dead ends: 3332 [2024-11-09 04:17:28,057 INFO L226 Difference]: Without dead ends: 3329 [2024-11-09 04:17:28,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:28,069 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 1228 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 286 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:28,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 1264 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2024-11-09 04:17:28,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2024-11-09 04:17:28,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3113. [2024-11-09 04:17:28,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 2306 states have (on average 1.3022549869904596) internal successors, (3003), 2375 states have internal predecessors, (3003), 596 states have call successors, (596), 197 states have call predecessors, (596), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-11-09 04:17:28,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 4269 transitions. [2024-11-09 04:17:28,198 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 4269 transitions. Word has length 41 [2024-11-09 04:17:28,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:28,199 INFO L471 AbstractCegarLoop]: Abstraction has 3113 states and 4269 transitions. [2024-11-09 04:17:28,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:28,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 4269 transitions. [2024-11-09 04:17:28,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 04:17:28,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:28,203 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:17:28,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:17:28,203 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:28,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:28,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1971058745, now seen corresponding path program 1 times [2024-11-09 04:17:28,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:28,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139249836] [2024-11-09 04:17:28,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:28,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:29,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:29,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:29,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 04:17:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:17:29,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:29,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139249836] [2024-11-09 04:17:29,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139249836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:29,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:29,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:29,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7010101] [2024-11-09 04:17:29,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:29,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:29,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:29,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:29,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:29,354 INFO L87 Difference]: Start difference. First operand 3113 states and 4269 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:33,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:37,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:37,021 INFO L93 Difference]: Finished difference Result 3331 states and 4632 transitions. [2024-11-09 04:17:37,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:17:37,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-11-09 04:17:37,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:37,038 INFO L225 Difference]: With dead ends: 3331 [2024-11-09 04:17:37,039 INFO L226 Difference]: Without dead ends: 3319 [2024-11-09 04:17:37,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:37,043 INFO L432 NwaCegarLoop]: 810 mSDtfsCounter, 1225 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 285 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:37,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1316 Valid, 1261 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2024-11-09 04:17:37,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3319 states. [2024-11-09 04:17:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3319 to 3103. [2024-11-09 04:17:37,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 2297 states have (on average 1.3016978667827601) internal successors, (2990), 2365 states have internal predecessors, (2990), 595 states have call successors, (595), 197 states have call predecessors, (595), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-11-09 04:17:37,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4255 transitions. [2024-11-09 04:17:37,174 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4255 transitions. Word has length 42 [2024-11-09 04:17:37,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:37,175 INFO L471 AbstractCegarLoop]: Abstraction has 3103 states and 4255 transitions. [2024-11-09 04:17:37,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:37,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4255 transitions. [2024-11-09 04:17:37,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 04:17:37,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:37,180 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:17:37,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 04:17:37,180 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:37,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:37,181 INFO L85 PathProgramCache]: Analyzing trace with hash 146725291, now seen corresponding path program 1 times [2024-11-09 04:17:37,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:37,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385693141] [2024-11-09 04:17:37,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:37,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:38,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:38,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:38,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 04:17:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:38,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 04:17:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:38,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:17:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:38,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 04:17:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:38,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 04:17:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:38,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 04:17:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:38,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 04:17:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:38,545 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:17:38,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:38,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385693141] [2024-11-09 04:17:38,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385693141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:38,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:38,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 04:17:38,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548711307] [2024-11-09 04:17:38,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:38,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:17:38,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:38,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:17:38,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:17:38,548 INFO L87 Difference]: Start difference. First operand 3103 states and 4255 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 04:17:42,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:46,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:50,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []