./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--usb_8dev.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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--usb_8dev.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 83293f5c81ac30df7449dd9c03263a4edbba62be916a9a4fda92d2518792b8d4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 03:18:48,862 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:18:48,937 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:18:48,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:18:48,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:18:48,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:18:48,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:18:48,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:18:48,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:18:48,975 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:18:48,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:18:48,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:18:48,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:18:48,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:18:48,981 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:18:48,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:18:48,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:18:48,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:18:48,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:18:48,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:18:48,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:18:48,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:18:48,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:18:48,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:18:48,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:18:48,986 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:18:48,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:18:48,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:18:48,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:18:48,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:18:48,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:18:48,988 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:18:48,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:18:48,988 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:18:48,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:18:48,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:18:48,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:18:48,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:18:48,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:18:48,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83293f5c81ac30df7449dd9c03263a4edbba62be916a9a4fda92d2518792b8d4 [2024-11-19 03:18:49,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:18:49,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:18:49,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:18:49,253 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:18:49,254 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:18:49,255 INFO L431 ainManager$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--usb_8dev.ko-entry_point.cil.out.i [2024-11-19 03:18:50,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:18:51,096 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:18:51,096 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--usb_8dev.ko-entry_point.cil.out.i [2024-11-19 03:18:51,148 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44d45602/289f1a96c6af42cf9bf484825f2c590c/FLAG2d0aea50a [2024-11-19 03:18:51,165 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44d45602/289f1a96c6af42cf9bf484825f2c590c [2024-11-19 03:18:51,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:18:51,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:18:51,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:18:51,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:18:51,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:18:51,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:51" (1/1) ... [2024-11-19 03:18:51,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ede69b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:51, skipping insertion in model container [2024-11-19 03:18:51,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:51" (1/1) ... [2024-11-19 03:18:51,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:18:52,069 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--usb_8dev.ko-entry_point.cil.out.i[163669,163682] [2024-11-19 03:18:52,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:18:52,532 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:18:52,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5402] [2024-11-19 03:18:52,711 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"); [5440] [2024-11-19 03:18:52,712 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)); [5447] [2024-11-19 03:18:52,713 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"); [5455-5456] [2024-11-19 03:18:52,715 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)); [5484] [2024-11-19 03:18:52,717 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)); [5491] [2024-11-19 03:18:52,730 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--usb_8dev.ko-entry_point.cil.out.i[163669,163682] [2024-11-19 03:18:52,773 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/6228/dscv_tempdir/dscv/ri/144_2a/drivers/net/can/usb/usb_8dev.o.c.prepared"), "i" (621), "i" (12UL)); [6324-6325] [2024-11-19 03:18:52,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:18:52,913 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:18:52,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52 WrapperNode [2024-11-19 03:18:52,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:18:52,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:18:52,915 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:18:52,915 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:18:52,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (1/1) ... [2024-11-19 03:18:52,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (1/1) ... [2024-11-19 03:18:53,094 INFO L138 Inliner]: procedures = 174, calls = 830, calls flagged for inlining = 87, calls inlined = 87, statements flattened = 2654 [2024-11-19 03:18:53,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:18:53,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:18:53,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:18:53,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:18:53,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (1/1) ... [2024-11-19 03:18:53,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (1/1) ... [2024-11-19 03:18:53,123 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (1/1) ... [2024-11-19 03:18:53,450 INFO L175 MemorySlicer]: Split 464 memory accesses to 8 slices as follows [2, 1, 9, 341, 31, 31, 44, 5]. 73 percent of accesses are in the largest equivalence class. The 28 initializations are split as follows [2, 0, 0, 26, 0, 0, 0, 0]. The 249 writes are split as follows [0, 0, 0, 186, 0, 18, 44, 1]. [2024-11-19 03:18:53,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (1/1) ... [2024-11-19 03:18:53,453 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (1/1) ... [2024-11-19 03:18:53,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (1/1) ... [2024-11-19 03:18:53,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (1/1) ... [2024-11-19 03:18:53,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (1/1) ... [2024-11-19 03:18:53,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (1/1) ... [2024-11-19 03:18:53,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:18:53,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:18:53,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:18:53,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:18:53,609 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (1/1) ... [2024-11-19 03:18:53,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:18:53,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:18:53,643 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) [2024-11-19 03:18:53,651 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 [2024-11-19 03:18:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-19 03:18:53,694 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-19 03:18:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2024-11-19 03:18:53,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2024-11-19 03:18:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2024-11-19 03:18:53,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2024-11-19 03:18:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_15 [2024-11-19 03:18:53,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_15 [2024-11-19 03:18:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:18:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:18:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:18:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:18:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:18:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:18:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 03:18:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-19 03:18:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2024-11-19 03:18:53,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2024-11-19 03:18:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-19 03:18:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-19 03:18:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-19 03:18:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-19 03:18:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-19 03:18:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-19 03:18:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-19 03:18:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-19 03:18:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-11-19 03:18:53,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-11-19 03:18:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:18:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:18:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:18:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-19 03:18:53,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 03:18:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 03:18:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-19 03:18:53,702 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-19 03:18:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-19 03:18:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-19 03:18:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-19 03:18:53,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-19 03:18:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-19 03:18:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-19 03:18:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-19 03:18:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-19 03:18:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-19 03:18:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-19 03:18:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-19 03:18:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-19 03:18:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-19 03:18:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-19 03:18:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-19 03:18:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-19 03:18:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-19 03:18:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-19 03:18:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-19 03:18:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-19 03:18:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-19 03:18:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-19 03:18:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 03:18:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 03:18:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-19 03:18:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-19 03:18:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_read_bulk_callback [2024-11-19 03:18:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_read_bulk_callback [2024-11-19 03:18:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-19 03:18:53,757 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-19 03:18:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-19 03:18:53,757 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-19 03:18:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:18:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:18:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:18:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:18:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:18:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:18:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 03:18:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 03:18:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:18:53,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:18:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-19 03:18:53,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-19 03:18:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-19 03:18:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-19 03:18:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-19 03:18:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-19 03:18:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-19 03:18:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-19 03:18:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-19 03:18:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-19 03:18:53,760 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-19 03:18:53,760 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-19 03:18:53,760 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-19 03:18:53,760 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-19 03:18:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-19 03:18:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-19 03:18:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-19 03:18:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-19 03:18:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 03:18:53,762 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 03:18:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-19 03:18:53,762 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-19 03:18:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:18:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-19 03:18:53,763 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-19 03:18:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-19 03:18:53,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-19 03:18:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-19 03:18:53,763 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-19 03:18:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:18:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-19 03:18:53,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-19 03:18:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:18:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:18:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:18:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:18:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:18:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:18:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:18:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 03:18:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 03:18:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-19 03:18:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-19 03:18:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-19 03:18:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-19 03:18:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-19 03:18:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-19 03:18:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:18:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:18:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:18:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:18:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:18:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:18:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 03:18:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 03:18:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-19 03:18:53,765 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-19 03:18:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-19 03:18:53,765 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-19 03:18:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-19 03:18:53,765 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-19 03:18:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2024-11-19 03:18:53,765 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2024-11-19 03:18:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:18:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_disconnect [2024-11-19 03:18:53,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_disconnect [2024-11-19 03:18:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-19 03:18:53,766 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-19 03:18:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-19 03:18:53,766 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-19 03:18:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-19 03:18:53,768 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-19 03:18:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-19 03:18:53,768 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-19 03:18:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-19 03:18:53,768 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-19 03:18:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-19 03:18:53,768 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-19 03:18:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-19 03:18:53,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-19 03:18:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-19 03:18:53,769 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-19 03:18:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:18:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:18:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:18:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:18:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:18:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:18:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 03:18:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 03:18:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-19 03:18:53,771 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-19 03:18:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2024-11-19 03:18:53,771 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2024-11-19 03:18:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-19 03:18:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-19 03:18:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-19 03:18:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-19 03:18:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-19 03:18:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-19 03:18:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-19 03:18:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-19 03:18:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd [2024-11-19 03:18:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd [2024-11-19 03:18:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-19 03:18:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-19 03:18:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:18:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:18:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_open [2024-11-19 03:18:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_open [2024-11-19 03:18:54,262 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:18:54,265 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:18:54,370 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-19 03:18:55,169 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-19 03:19:03,071 INFO L? ?]: Removed 1214 outVars from TransFormulas that were not future-live. [2024-11-19 03:19:03,071 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:19:03,125 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:19:03,127 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 03:19:03,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:19:03 BoogieIcfgContainer [2024-11-19 03:19:03,127 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:19:03,130 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:19:03,130 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:19:03,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:19:03,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:18:51" (1/3) ... [2024-11-19 03:19:03,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbe586d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:19:03, skipping insertion in model container [2024-11-19 03:19:03,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:52" (2/3) ... [2024-11-19 03:19:03,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbe586d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:19:03, skipping insertion in model container [2024-11-19 03:19:03,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:19:03" (3/3) ... [2024-11-19 03:19:03,135 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2024-11-19 03:19:03,152 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:19:03,152 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:19:03,239 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:19:03,246 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;@775d6580, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:19:03,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:19:03,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 813 states, 611 states have (on average 1.3453355155482816) internal successors, (822), 631 states have internal predecessors, (822), 155 states have call successors, (155), 47 states have call predecessors, (155), 45 states have return successors, (149), 148 states have call predecessors, (149), 149 states have call successors, (149) [2024-11-19 03:19:03,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-19 03:19:03,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:03,267 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] [2024-11-19 03:19:03,267 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:03,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:03,272 INFO L85 PathProgramCache]: Analyzing trace with hash -864942331, now seen corresponding path program 1 times [2024-11-19 03:19:03,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:03,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105865712] [2024-11-19 03:19:03,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:03,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:06,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 03:19:06,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:06,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105865712] [2024-11-19 03:19:06,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105865712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:06,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:06,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:06,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813254168] [2024-11-19 03:19:06,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:06,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:06,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:06,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:06,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:06,084 INFO L87 Difference]: Start difference. First operand has 813 states, 611 states have (on average 1.3453355155482816) internal successors, (822), 631 states have internal predecessors, (822), 155 states have call successors, (155), 47 states have call predecessors, (155), 45 states have return successors, (149), 148 states have call predecessors, (149), 149 states have call successors, (149) Second operand has 3 states, 3 states have (on average 6.666666666666667) 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) [2024-11-19 03:19:10,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:19:10,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:10,429 INFO L93 Difference]: Finished difference Result 2395 states and 3373 transitions. [2024-11-19 03:19:10,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:10,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) 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 [2024-11-19 03:19:10,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:10,462 INFO L225 Difference]: With dead ends: 2395 [2024-11-19 03:19:10,462 INFO L226 Difference]: Without dead ends: 1563 [2024-11-19 03:19:10,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:10,478 INFO L432 NwaCegarLoop]: 1104 mSDtfsCounter, 1050 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:10,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 2181 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-19 03:19:10,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-11-19 03:19:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1563. [2024-11-19 03:19:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1185 states have (on average 1.2953586497890295) internal successors, (1535), 1205 states have internal predecessors, (1535), 289 states have call successors, (289), 89 states have call predecessors, (289), 88 states have return successors, (284), 282 states have call predecessors, (284), 284 states have call successors, (284) [2024-11-19 03:19:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2108 transitions. [2024-11-19 03:19:10,658 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2108 transitions. Word has length 28 [2024-11-19 03:19:10,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:10,660 INFO L471 AbstractCegarLoop]: Abstraction has 1563 states and 2108 transitions. [2024-11-19 03:19:10,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) 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) [2024-11-19 03:19:10,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2108 transitions. [2024-11-19 03:19:10,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-19 03:19:10,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:10,666 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] [2024-11-19 03:19:10,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 03:19:10,669 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:10,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:10,670 INFO L85 PathProgramCache]: Analyzing trace with hash -839642905, now seen corresponding path program 1 times [2024-11-19 03:19:10,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:10,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831142819] [2024-11-19 03:19:10,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:10,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:13,005 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:19:13,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:13,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831142819] [2024-11-19 03:19:13,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831142819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:13,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:13,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:13,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815070019] [2024-11-19 03:19:13,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:13,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:13,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:13,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:13,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:13,013 INFO L87 Difference]: Start difference. First operand 1563 states and 2108 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) 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) [2024-11-19 03:19:13,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:13,272 INFO L93 Difference]: Finished difference Result 4674 states and 6329 transitions. [2024-11-19 03:19:13,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:13,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) 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 [2024-11-19 03:19:13,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:13,295 INFO L225 Difference]: With dead ends: 4674 [2024-11-19 03:19:13,296 INFO L226 Difference]: Without dead ends: 3118 [2024-11-19 03:19:13,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:13,304 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 1049 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:13,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 2659 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:19:13,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2024-11-19 03:19:13,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 3108. [2024-11-19 03:19:13,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 2360 states have (on average 1.2940677966101695) internal successors, (3054), 2396 states have internal predecessors, (3054), 571 states have call successors, (571), 177 states have call predecessors, (571), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-19 03:19:13,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 4205 transitions. [2024-11-19 03:19:13,446 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 4205 transitions. Word has length 38 [2024-11-19 03:19:13,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:13,447 INFO L471 AbstractCegarLoop]: Abstraction has 3108 states and 4205 transitions. [2024-11-19 03:19:13,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) 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) [2024-11-19 03:19:13,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 4205 transitions. [2024-11-19 03:19:13,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-19 03:19:13,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:13,453 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] [2024-11-19 03:19:13,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:19:13,454 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:13,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:13,458 INFO L85 PathProgramCache]: Analyzing trace with hash -259542901, now seen corresponding path program 1 times [2024-11-19 03:19:13,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:13,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447806582] [2024-11-19 03:19:13,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:13,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:19:15,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:15,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447806582] [2024-11-19 03:19:15,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447806582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:15,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:15,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:15,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320456604] [2024-11-19 03:19:15,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:15,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:15,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:15,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:15,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:15,312 INFO L87 Difference]: Start difference. First operand 3108 states and 4205 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) 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) [2024-11-19 03:19:15,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:15,419 INFO L93 Difference]: Finished difference Result 3110 states and 4206 transitions. [2024-11-19 03:19:15,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:15,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) 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 [2024-11-19 03:19:15,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:15,440 INFO L225 Difference]: With dead ends: 3110 [2024-11-19 03:19:15,440 INFO L226 Difference]: Without dead ends: 3107 [2024-11-19 03:19:15,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:15,445 INFO L432 NwaCegarLoop]: 1073 mSDtfsCounter, 1050 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:15,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 1073 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:19:15,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2024-11-19 03:19:15,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 3107. [2024-11-19 03:19:15,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 2360 states have (on average 1.2936440677966101) internal successors, (3053), 2395 states have internal predecessors, (3053), 570 states have call successors, (570), 177 states have call predecessors, (570), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-19 03:19:15,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4203 transitions. [2024-11-19 03:19:15,607 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4203 transitions. Word has length 39 [2024-11-19 03:19:15,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:15,608 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4203 transitions. [2024-11-19 03:19:15,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) 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) [2024-11-19 03:19:15,608 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4203 transitions. [2024-11-19 03:19:15,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-19 03:19:15,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:15,611 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] [2024-11-19 03:19:15,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:19:15,611 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:15,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:15,612 INFO L85 PathProgramCache]: Analyzing trace with hash 543692906, now seen corresponding path program 1 times [2024-11-19 03:19:15,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:15,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541118668] [2024-11-19 03:19:15,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:15,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:19:16,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:16,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541118668] [2024-11-19 03:19:16,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541118668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:16,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:16,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:16,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888509108] [2024-11-19 03:19:16,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:16,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:16,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:16,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:16,904 INFO L87 Difference]: Start difference. First operand 3107 states and 4203 transitions. Second operand has 3 states, 3 states have (on average 9.0) 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) [2024-11-19 03:19:17,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:17,006 INFO L93 Difference]: Finished difference Result 3109 states and 4204 transitions. [2024-11-19 03:19:17,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:17,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) 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 [2024-11-19 03:19:17,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:17,024 INFO L225 Difference]: With dead ends: 3109 [2024-11-19 03:19:17,024 INFO L226 Difference]: Without dead ends: 3106 [2024-11-19 03:19:17,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:17,026 INFO L432 NwaCegarLoop]: 1071 mSDtfsCounter, 1047 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:17,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 1071 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:19:17,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2024-11-19 03:19:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 3106. [2024-11-19 03:19:17,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 2360 states have (on average 1.2932203389830508) internal successors, (3052), 2394 states have internal predecessors, (3052), 569 states have call successors, (569), 177 states have call predecessors, (569), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-19 03:19:17,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 4201 transitions. [2024-11-19 03:19:17,182 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 4201 transitions. Word has length 40 [2024-11-19 03:19:17,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:17,182 INFO L471 AbstractCegarLoop]: Abstraction has 3106 states and 4201 transitions. [2024-11-19 03:19:17,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) 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) [2024-11-19 03:19:17,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 4201 transitions. [2024-11-19 03:19:17,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-19 03:19:17,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:17,186 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] [2024-11-19 03:19:17,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:19:17,186 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:17,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:17,187 INFO L85 PathProgramCache]: Analyzing trace with hash -325795986, now seen corresponding path program 1 times [2024-11-19 03:19:17,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:17,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638398673] [2024-11-19 03:19:17,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:17,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:18,745 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:19:18,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:18,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638398673] [2024-11-19 03:19:18,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638398673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:18,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:18,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:18,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524468354] [2024-11-19 03:19:18,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:18,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:18,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:18,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:18,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:18,748 INFO L87 Difference]: Start difference. First operand 3106 states and 4201 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) 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) [2024-11-19 03:19:18,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:18,882 INFO L93 Difference]: Finished difference Result 3108 states and 4202 transitions. [2024-11-19 03:19:18,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:18,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) 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 [2024-11-19 03:19:18,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:18,901 INFO L225 Difference]: With dead ends: 3108 [2024-11-19 03:19:18,901 INFO L226 Difference]: Without dead ends: 3105 [2024-11-19 03:19:18,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:18,903 INFO L432 NwaCegarLoop]: 1069 mSDtfsCounter, 1044 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:18,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 1069 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:19:18,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2024-11-19 03:19:19,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 3105. [2024-11-19 03:19:19,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3105 states, 2360 states have (on average 1.2927966101694914) internal successors, (3051), 2393 states have internal predecessors, (3051), 568 states have call successors, (568), 177 states have call predecessors, (568), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-19 03:19:19,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 4199 transitions. [2024-11-19 03:19:19,054 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 4199 transitions. Word has length 41 [2024-11-19 03:19:19,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:19,054 INFO L471 AbstractCegarLoop]: Abstraction has 3105 states and 4199 transitions. [2024-11-19 03:19:19,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) 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) [2024-11-19 03:19:19,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 4199 transitions. [2024-11-19 03:19:19,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-19 03:19:19,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:19,056 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] [2024-11-19 03:19:19,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 03:19:19,056 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:19,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:19,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1510142995, now seen corresponding path program 1 times [2024-11-19 03:19:19,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:19,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242723464] [2024-11-19 03:19:19,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:19,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:19:20,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:20,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242723464] [2024-11-19 03:19:20,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242723464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:20,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:20,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:20,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200597376] [2024-11-19 03:19:20,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:20,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:20,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:20,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:20,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:20,470 INFO L87 Difference]: Start difference. First operand 3105 states and 4199 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) 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) [2024-11-19 03:19:20,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:20,636 INFO L93 Difference]: Finished difference Result 3107 states and 4200 transitions. [2024-11-19 03:19:20,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:20,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) 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 [2024-11-19 03:19:20,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:20,658 INFO L225 Difference]: With dead ends: 3107 [2024-11-19 03:19:20,659 INFO L226 Difference]: Without dead ends: 3095 [2024-11-19 03:19:20,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:20,662 INFO L432 NwaCegarLoop]: 1068 mSDtfsCounter, 1041 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:20,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:19:20,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2024-11-19 03:19:20,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 3095. [2024-11-19 03:19:20,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3095 states, 2351 states have (on average 1.2922160782645682) internal successors, (3038), 2383 states have internal predecessors, (3038), 567 states have call successors, (567), 177 states have call predecessors, (567), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-19 03:19:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 4185 transitions. [2024-11-19 03:19:20,899 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 4185 transitions. Word has length 42 [2024-11-19 03:19:20,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:20,901 INFO L471 AbstractCegarLoop]: Abstraction has 3095 states and 4185 transitions. [2024-11-19 03:19:20,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) 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) [2024-11-19 03:19:20,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 4185 transitions. [2024-11-19 03:19:20,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-19 03:19:20,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:20,908 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] [2024-11-19 03:19:20,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 03:19:20,909 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:20,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:20,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1353177793, now seen corresponding path program 1 times [2024-11-19 03:19:20,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:20,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424367383] [2024-11-19 03:19:20,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:20,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:22,234 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:19:22,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:22,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424367383] [2024-11-19 03:19:22,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424367383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:22,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:22,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:22,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554985892] [2024-11-19 03:19:22,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:22,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:22,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:22,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:22,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:22,236 INFO L87 Difference]: Start difference. First operand 3095 states and 4185 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 03:19:22,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:22,549 INFO L93 Difference]: Finished difference Result 7096 states and 9506 transitions. [2024-11-19 03:19:22,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:22,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2024-11-19 03:19:22,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:22,573 INFO L225 Difference]: With dead ends: 7096 [2024-11-19 03:19:22,574 INFO L226 Difference]: Without dead ends: 4008 [2024-11-19 03:19:22,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:22,585 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 302 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:22,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 2195 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:19:22,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2024-11-19 03:19:22,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 4000. [2024-11-19 03:19:22,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4000 states, 3036 states have (on average 1.2786561264822134) internal successors, (3882), 3076 states have internal predecessors, (3882), 712 states have call successors, (712), 252 states have call predecessors, (712), 251 states have return successors, (725), 707 states have call predecessors, (725), 711 states have call successors, (725) [2024-11-19 03:19:22,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4000 states to 4000 states and 5319 transitions. [2024-11-19 03:19:22,799 INFO L78 Accepts]: Start accepts. Automaton has 4000 states and 5319 transitions. Word has length 87 [2024-11-19 03:19:22,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:22,800 INFO L471 AbstractCegarLoop]: Abstraction has 4000 states and 5319 transitions. [2024-11-19 03:19:22,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 03:19:22,800 INFO L276 IsEmpty]: Start isEmpty. Operand 4000 states and 5319 transitions. [2024-11-19 03:19:22,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 03:19:22,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:22,805 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1] [2024-11-19 03:19:22,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 03:19:22,806 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:22,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:22,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1568239270, now seen corresponding path program 1 times [2024-11-19 03:19:22,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:22,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922451582] [2024-11-19 03:19:22,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:22,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:24,162 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 03:19:24,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:24,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922451582] [2024-11-19 03:19:24,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922451582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:24,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:24,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:24,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178892295] [2024-11-19 03:19:24,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:24,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:24,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:24,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:24,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:24,167 INFO L87 Difference]: Start difference. First operand 4000 states and 5319 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-19 03:19:28,266 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 [] [2024-11-19 03:19:28,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:28,785 INFO L93 Difference]: Finished difference Result 8940 states and 11846 transitions. [2024-11-19 03:19:28,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:28,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 103 [2024-11-19 03:19:28,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:28,822 INFO L225 Difference]: With dead ends: 8940 [2024-11-19 03:19:28,823 INFO L226 Difference]: Without dead ends: 4954 [2024-11-19 03:19:28,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:28,842 INFO L432 NwaCegarLoop]: 1355 mSDtfsCounter, 310 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 2393 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:28,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 2393 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-19 03:19:28,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2024-11-19 03:19:29,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 4946. [2024-11-19 03:19:29,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4946 states, 3764 states have (on average 1.2720510095642934) internal successors, (4788), 3812 states have internal predecessors, (4788), 856 states have call successors, (856), 326 states have call predecessors, (856), 325 states have return successors, (869), 851 states have call predecessors, (869), 855 states have call successors, (869) [2024-11-19 03:19:29,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4946 states to 4946 states and 6513 transitions. [2024-11-19 03:19:29,220 INFO L78 Accepts]: Start accepts. Automaton has 4946 states and 6513 transitions. Word has length 103 [2024-11-19 03:19:29,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:29,221 INFO L471 AbstractCegarLoop]: Abstraction has 4946 states and 6513 transitions. [2024-11-19 03:19:29,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-19 03:19:29,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4946 states and 6513 transitions. [2024-11-19 03:19:29,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 03:19:29,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:29,228 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:29,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 03:19:29,228 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:29,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:29,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1357082055, now seen corresponding path program 1 times [2024-11-19 03:19:29,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:29,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316602844] [2024-11-19 03:19:29,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:29,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:30,569 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-19 03:19:30,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:30,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316602844] [2024-11-19 03:19:30,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316602844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:30,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:30,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:30,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295949034] [2024-11-19 03:19:30,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:30,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:30,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:30,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:30,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:30,573 INFO L87 Difference]: Start difference. First operand 4946 states and 6513 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 03:19:34,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:19:35,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:35,096 INFO L93 Difference]: Finished difference Result 11940 states and 15660 transitions. [2024-11-19 03:19:35,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:35,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2024-11-19 03:19:35,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:35,136 INFO L225 Difference]: With dead ends: 11940 [2024-11-19 03:19:35,136 INFO L226 Difference]: Without dead ends: 7008 [2024-11-19 03:19:35,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:35,153 INFO L432 NwaCegarLoop]: 1369 mSDtfsCounter, 840 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:35,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 2238 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-19 03:19:35,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7008 states. [2024-11-19 03:19:35,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7008 to 7000. [2024-11-19 03:19:35,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7000 states, 5372 states have (on average 1.27475800446761) internal successors, (6848), 5444 states have internal predecessors, (6848), 1136 states have call successors, (1136), 492 states have call predecessors, (1136), 491 states have return successors, (1149), 1127 states have call predecessors, (1149), 1135 states have call successors, (1149) [2024-11-19 03:19:35,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7000 states to 7000 states and 9133 transitions. [2024-11-19 03:19:35,585 INFO L78 Accepts]: Start accepts. Automaton has 7000 states and 9133 transitions. Word has length 115 [2024-11-19 03:19:35,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:35,586 INFO L471 AbstractCegarLoop]: Abstraction has 7000 states and 9133 transitions. [2024-11-19 03:19:35,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 03:19:35,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7000 states and 9133 transitions. [2024-11-19 03:19:35,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 03:19:35,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:35,595 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:35,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 03:19:35,595 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:35,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:35,599 INFO L85 PathProgramCache]: Analyzing trace with hash 143181183, now seen corresponding path program 1 times [2024-11-19 03:19:35,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:35,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306706898] [2024-11-19 03:19:35,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:35,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:37,278 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 03:19:37,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:37,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306706898] [2024-11-19 03:19:37,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306706898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:19:37,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621447423] [2024-11-19 03:19:37,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:37,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:19:37,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:19:37,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:19:37,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 03:19:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:39,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:19:39,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:19:40,607 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 03:19:40,607 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:19:40,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621447423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:40,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:19:40,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-19 03:19:40,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808159932] [2024-11-19 03:19:40,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:40,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:19:40,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:40,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:19:40,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:19:40,609 INFO L87 Difference]: Start difference. First operand 7000 states and 9133 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 03:19:44,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:19:48,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:48,202 INFO L93 Difference]: Finished difference Result 20974 states and 27366 transitions. [2024-11-19 03:19:48,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 03:19:48,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 135 [2024-11-19 03:19:48,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:48,300 INFO L225 Difference]: With dead ends: 20974 [2024-11-19 03:19:48,301 INFO L226 Difference]: Without dead ends: 20966 [2024-11-19 03:19:48,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:19:48,316 INFO L432 NwaCegarLoop]: 1286 mSDtfsCounter, 2549 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 217 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2549 SdHoareTripleChecker+Valid, 3099 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:48,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2549 Valid, 3099 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 310 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2024-11-19 03:19:48,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20966 states. [2024-11-19 03:19:49,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20966 to 20932. [2024-11-19 03:19:49,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20932 states, 16060 states have (on average 1.2753424657534247) internal successors, (20482), 16292 states have internal predecessors, (20482), 3400 states have call successors, (3400), 1472 states have call predecessors, (3400), 1471 states have return successors, (3441), 3359 states have call predecessors, (3441), 3399 states have call successors, (3441) [2024-11-19 03:19:49,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20932 states to 20932 states and 27323 transitions. [2024-11-19 03:19:49,388 INFO L78 Accepts]: Start accepts. Automaton has 20932 states and 27323 transitions. Word has length 135 [2024-11-19 03:19:49,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:49,389 INFO L471 AbstractCegarLoop]: Abstraction has 20932 states and 27323 transitions. [2024-11-19 03:19:49,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 03:19:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand 20932 states and 27323 transitions. [2024-11-19 03:19:49,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-19 03:19:49,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:49,415 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:49,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 03:19:49,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 03:19:49,617 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:49,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:49,618 INFO L85 PathProgramCache]: Analyzing trace with hash 405962465, now seen corresponding path program 1 times [2024-11-19 03:19:49,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:49,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158518761] [2024-11-19 03:19:49,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:49,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:51,240 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-19 03:19:51,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:51,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158518761] [2024-11-19 03:19:51,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158518761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:51,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:51,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:51,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006527367] [2024-11-19 03:19:51,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:51,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:51,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:51,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:51,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:51,243 INFO L87 Difference]: Start difference. First operand 20932 states and 27323 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 03:19:55,269 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 [] [2024-11-19 03:19:55,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:55,904 INFO L93 Difference]: Finished difference Result 31914 states and 41653 transitions. [2024-11-19 03:19:55,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:55,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 145 [2024-11-19 03:19:55,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:55,972 INFO L225 Difference]: With dead ends: 31914 [2024-11-19 03:19:55,972 INFO L226 Difference]: Without dead ends: 10346 [2024-11-19 03:19:56,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:56,038 INFO L432 NwaCegarLoop]: 1253 mSDtfsCounter, 991 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:56,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 1549 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:19:56,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10346 states. [2024-11-19 03:19:56,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10346 to 10346. [2024-11-19 03:19:56,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10346 states, 7933 states have (on average 1.2726585150636582) internal successors, (10096), 8049 states have internal predecessors, (10096), 1684 states have call successors, (1684), 729 states have call predecessors, (1684), 728 states have return successors, (1704), 1663 states have call predecessors, (1704), 1683 states have call successors, (1704) [2024-11-19 03:19:56,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10346 states to 10346 states and 13484 transitions. [2024-11-19 03:19:56,579 INFO L78 Accepts]: Start accepts. Automaton has 10346 states and 13484 transitions. Word has length 145 [2024-11-19 03:19:56,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:56,580 INFO L471 AbstractCegarLoop]: Abstraction has 10346 states and 13484 transitions. [2024-11-19 03:19:56,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-19 03:19:56,581 INFO L276 IsEmpty]: Start isEmpty. Operand 10346 states and 13484 transitions. [2024-11-19 03:19:56,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 03:19:56,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:56,596 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:56,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 03:19:56,596 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:56,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:56,597 INFO L85 PathProgramCache]: Analyzing trace with hash 883101261, now seen corresponding path program 1 times [2024-11-19 03:19:56,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:56,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746739729] [2024-11-19 03:19:56,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:56,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:58,345 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 03:19:58,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:58,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746739729] [2024-11-19 03:19:58,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746739729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:58,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:58,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:58,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956976317] [2024-11-19 03:19:58,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:58,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:58,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:58,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:58,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:58,348 INFO L87 Difference]: Start difference. First operand 10346 states and 13484 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-19 03:20:02,373 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 [] [2024-11-19 03:20:02,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:02,845 INFO L93 Difference]: Finished difference Result 19304 states and 25236 transitions. [2024-11-19 03:20:02,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:20:02,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 147 [2024-11-19 03:20:02,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:02,899 INFO L225 Difference]: With dead ends: 19304 [2024-11-19 03:20:02,899 INFO L226 Difference]: Without dead ends: 9704 [2024-11-19 03:20:02,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:02,929 INFO L432 NwaCegarLoop]: 1626 mSDtfsCounter, 832 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:20:02,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 2479 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-19 03:20:02,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9704 states. [2024-11-19 03:20:03,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9704 to 9696. [2024-11-19 03:20:03,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9696 states, 7442 states have (on average 1.2710292932007525) internal successors, (9459), 7551 states have internal predecessors, (9459), 1579 states have call successors, (1579), 675 states have call predecessors, (1579), 674 states have return successors, (1599), 1559 states have call predecessors, (1599), 1578 states have call successors, (1599) [2024-11-19 03:20:03,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9696 states to 9696 states and 12637 transitions. [2024-11-19 03:20:03,537 INFO L78 Accepts]: Start accepts. Automaton has 9696 states and 12637 transitions. Word has length 147 [2024-11-19 03:20:03,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:03,538 INFO L471 AbstractCegarLoop]: Abstraction has 9696 states and 12637 transitions. [2024-11-19 03:20:03,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-19 03:20:03,539 INFO L276 IsEmpty]: Start isEmpty. Operand 9696 states and 12637 transitions. [2024-11-19 03:20:03,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 03:20:03,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:03,552 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:20:03,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 03:20:03,552 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:03,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:03,553 INFO L85 PathProgramCache]: Analyzing trace with hash 945140875, now seen corresponding path program 1 times [2024-11-19 03:20:03,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:03,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321543617] [2024-11-19 03:20:03,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:03,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:05,341 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 03:20:05,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:05,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321543617] [2024-11-19 03:20:05,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321543617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:05,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:05,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 03:20:05,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57418470] [2024-11-19 03:20:05,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:05,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:20:05,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:05,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:20:05,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 03:20:05,343 INFO L87 Difference]: Start difference. First operand 9696 states and 12637 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-19 03:20:05,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:05,902 INFO L93 Difference]: Finished difference Result 23794 states and 31051 transitions. [2024-11-19 03:20:05,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 03:20:05,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 147 [2024-11-19 03:20:05,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:05,967 INFO L225 Difference]: With dead ends: 23794 [2024-11-19 03:20:05,967 INFO L226 Difference]: Without dead ends: 14844 [2024-11-19 03:20:05,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:20:05,997 INFO L432 NwaCegarLoop]: 1062 mSDtfsCounter, 1058 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:20:05,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 2952 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:20:06,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14844 states.