./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 c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--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-?-c7c6ca5-m [2024-11-09 04:16:29,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:16:29,699 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 04:16:29,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:16:29,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:16:29,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:16:29,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:16:29,747 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:16:29,747 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 04:16:29,748 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 04:16:29,748 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:16:29,748 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:16:29,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 04:16:29,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 04:16:29,749 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 04:16:29,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:16:29,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:16:29,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:16:29,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:16:29,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:16:29,753 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:16:29,757 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:16:29,757 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:16:29,758 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:16:29,758 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:16:29,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:16:29,758 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:16:29,758 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:16:29,759 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:16:29,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:16:29,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:16:29,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:16:29,760 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:16:29,760 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 04:16:29,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:16:29,760 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:16:29,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 04:16:29,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 04:16:29,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:16:29,764 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83293f5c81ac30df7449dd9c03263a4edbba62be916a9a4fda92d2518792b8d4 [2024-11-09 04:16:30,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:16:30,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:16:30,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:16:30,052 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:16:30,052 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:16:30,054 INFO L431 ainManager$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 [2024-11-09 04:16:31,430 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:16:31,778 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:16:31,778 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 [2024-11-09 04:16:31,813 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2467f6d46/aee9eb1550154ad9b8ce0d736c4726a0/FLAG164f03d84 [2024-11-09 04:16:31,991 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2467f6d46/aee9eb1550154ad9b8ce0d736c4726a0 [2024-11-09 04:16:31,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:16:31,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:16:31,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:16:31,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:16:32,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:16:32,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:32,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2216d0cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:32, skipping insertion in model container [2024-11-09 04:16:32,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:32,103 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:16:32,931 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] [2024-11-09 04:16:33,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:16:33,271 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:16:33,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5402] [2024-11-09 04:16:33,349 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] [2024-11-09 04:16:33,350 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] [2024-11-09 04:16:33,350 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] [2024-11-09 04:16:33,351 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] [2024-11-09 04:16:33,351 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] [2024-11-09 04:16:33,358 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] [2024-11-09 04:16:33,468 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] [2024-11-09 04:16:33,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:16:33,610 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:16:33,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33 WrapperNode [2024-11-09 04:16:33,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:16:33,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:16:33,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:16:33,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:16:33,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (1/1) ... [2024-11-09 04:16:33,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (1/1) ... [2024-11-09 04:16:33,755 INFO L138 Inliner]: procedures = 174, calls = 830, calls flagged for inlining = 87, calls inlined = 87, statements flattened = 2654 [2024-11-09 04:16:33,755 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:16:33,756 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:16:33,756 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:16:33,756 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:16:33,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (1/1) ... [2024-11-09 04:16:33,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (1/1) ... [2024-11-09 04:16:33,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (1/1) ... [2024-11-09 04:16:34,025 INFO L175 MemorySlicer]: Split 464 memory accesses to 8 slices as follows [2, 5, 1, 44, 9, 341, 31, 31]. 73 percent of accesses are in the largest equivalence class. The 28 initializations are split as follows [2, 0, 0, 0, 0, 26, 0, 0]. The 249 writes are split as follows [0, 1, 0, 44, 0, 186, 18, 0]. [2024-11-09 04:16:34,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (1/1) ... [2024-11-09 04:16:34,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (1/1) ... [2024-11-09 04:16:34,086 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (1/1) ... [2024-11-09 04:16:34,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (1/1) ... [2024-11-09 04:16:34,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (1/1) ... [2024-11-09 04:16:34,136 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (1/1) ... [2024-11-09 04:16:34,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:16:34,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:16:34,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:16:34,159 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:16:34,160 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (1/1) ... [2024-11-09 04:16:34,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:16:34,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 04:16:34,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 04:16:34,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 04:16:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-09 04:16:34,231 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-09 04:16:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2024-11-09 04:16:34,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2024-11-09 04:16:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2024-11-09 04:16:34,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2024-11-09 04:16:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_15 [2024-11-09 04:16:34,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_15 [2024-11-09 04:16:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 04:16:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 04:16:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 04:16:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 04:16:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 04:16:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 04:16:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-09 04:16:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-09 04:16:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2024-11-09 04:16:34,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-11-09 04:16:34,234 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 04:16:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 04:16:34,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-09 04:16:34,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-09 04:16:34,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-09 04:16:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-09 04:16:34,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-09 04:16:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-09 04:16:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-09 04:16:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-09 04:16:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-09 04:16:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-09 04:16:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-09 04:16:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-09 04:16:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-09 04:16:34,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-09 04:16:34,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-09 04:16:34,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-09 04:16:34,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-09 04:16:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-09 04:16:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-09 04:16:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-09 04:16:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-09 04:16:34,240 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-09 04:16:34,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-09 04:16:34,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 04:16:34,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 04:16:34,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-09 04:16:34,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-09 04:16:34,241 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_read_bulk_callback [2024-11-09 04:16:34,241 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_read_bulk_callback [2024-11-09 04:16:34,241 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-09 04:16:34,241 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-09 04:16:34,241 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-09 04:16:34,241 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-09 04:16:34,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 04:16:34,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 04:16:34,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 04:16:34,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-09 04:16:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-09 04:16:34,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-09 04:16:34,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-09 04:16:34,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-09 04:16:34,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-09 04:16:34,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-09 04:16:34,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-09 04:16:34,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-09 04:16:34,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-09 04:16:34,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-09 04:16:34,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-09 04:16:34,244 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:16:34,245 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:16:34,245 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 04:16:34,245 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 04:16:34,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:16:34,245 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-09 04:16:34,245 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-09 04:16:34,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-09 04:16:34,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-09 04:16:34,246 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-09 04:16:34,246 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-09 04:16:34,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:16:34,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 04:16:34,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 04:16:34,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:16:34,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 04:16:34,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 04:16:34,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 04:16:34,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-09 04:16:34,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-09 04:16:34,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 04:16:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 04:16:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 04:16:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-09 04:16:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-09 04:16:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-09 04:16:34,248 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-09 04:16:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-09 04:16:34,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-09 04:16:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-09 04:16:34,248 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-09 04:16:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2024-11-09 04:16:34,248 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2024-11-09 04:16:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:16:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_disconnect [2024-11-09 04:16:34,248 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_disconnect [2024-11-09 04:16:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-09 04:16:34,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-09 04:16:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-09 04:16:34,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-09 04:16:34,248 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 04:16:34,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 04:16:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-09 04:16:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-09 04:16:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 04:16:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 04:16:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-09 04:16:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-09 04:16:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-09 04:16:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-09 04:16:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-09 04:16:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-09 04:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 04:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 04:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 04:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 04:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 04:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 04:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 04:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-09 04:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-09 04:16:34,251 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-09 04:16:34,252 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2024-11-09 04:16:34,252 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2024-11-09 04:16:34,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-09 04:16:34,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-09 04:16:34,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-09 04:16:34,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-09 04:16:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-09 04:16:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-09 04:16:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-09 04:16:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-09 04:16:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd [2024-11-09 04:16:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd [2024-11-09 04:16:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 04:16:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 04:16:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:16:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:16:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_open [2024-11-09 04:16:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_open [2024-11-09 04:16:34,682 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:16:34,685 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:16:34,763 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 04:16:35,449 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-09 04:16:42,788 INFO L? ?]: Removed 1214 outVars from TransFormulas that were not future-live. [2024-11-09 04:16:42,788 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:16:42,810 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:16:42,856 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:16:42,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:16:42 BoogieIcfgContainer [2024-11-09 04:16:42,857 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:16:42,859 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:16:42,859 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:16:42,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:16:42,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:16:31" (1/3) ... [2024-11-09 04:16:42,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5839e833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:16:42, skipping insertion in model container [2024-11-09 04:16:42,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:33" (2/3) ... [2024-11-09 04:16:42,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5839e833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:16:42, skipping insertion in model container [2024-11-09 04:16:42,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:16:42" (3/3) ... [2024-11-09 04:16:42,864 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 [2024-11-09 04:16:42,877 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:16:42,878 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:16:42,942 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:16:42,952 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;@43074c4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:16:42,952 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:16:42,958 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) [2024-11-09 04:16:42,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 04:16:42,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:16:42,971 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:16:42,971 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:16:42,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:16:42,976 INFO L85 PathProgramCache]: Analyzing trace with hash -864942331, now seen corresponding path program 1 times [2024-11-09 04:16:42,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:16:42,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421029354] [2024-11-09 04:16:42,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:16:42,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:16:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:44,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:16:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:44,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:16:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:44,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:16:44,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:16:44,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421029354] [2024-11-09 04:16:44,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421029354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:16:44,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:16:44,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:16:44,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120905197] [2024-11-09 04:16:44,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:16:44,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:16:44,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:16:45,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:16:45,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:16:45,008 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 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:16:49,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:16:53,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:16:59,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:16:59,932 INFO L93 Difference]: Finished difference Result 2517 states and 3589 transitions. [2024-11-09 04:16:59,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:16:59,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-09 04:16:59,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:16:59,963 INFO L225 Difference]: With dead ends: 2517 [2024-11-09 04:16:59,963 INFO L226 Difference]: Without dead ends: 1685 [2024-11-09 04:16:59,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:16:59,973 INFO L432 NwaCegarLoop]: 915 mSDtfsCounter, 1380 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 416 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:16:59,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 2249 Invalid, 1165 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [416 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2024-11-09 04:16:59,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2024-11-09 04:17:00,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1563. [2024-11-09 04:17:00,107 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) [2024-11-09 04:17:00,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2108 transitions. [2024-11-09 04:17:00,124 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2108 transitions. Word has length 28 [2024-11-09 04:17:00,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:00,127 INFO L471 AbstractCegarLoop]: Abstraction has 1563 states and 2108 transitions. [2024-11-09 04:17:00,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:17:00,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2108 transitions. [2024-11-09 04:17:00,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 04:17:00,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:00,131 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:17:00,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:17:00,131 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:00,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:00,132 INFO L85 PathProgramCache]: Analyzing trace with hash -839642905, now seen corresponding path program 1 times [2024-11-09 04:17:00,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:00,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719263601] [2024-11-09 04:17:00,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:00,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:01,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:01,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:01,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 04:17:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:17:01,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:01,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719263601] [2024-11-09 04:17:01,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719263601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:01,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:01,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:01,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894086189] [2024-11-09 04:17:01,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:01,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:01,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:01,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:01,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:01,927 INFO L87 Difference]: Start difference. First operand 1563 states and 2108 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:05,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:13,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:13,294 INFO L93 Difference]: Finished difference Result 4918 states and 6751 transitions. [2024-11-09 04:17:13,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:17:13,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-11-09 04:17:13,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:13,332 INFO L225 Difference]: With dead ends: 4918 [2024-11-09 04:17:13,332 INFO L226 Difference]: Without dead ends: 3362 [2024-11-09 04:17:13,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:13,344 INFO L432 NwaCegarLoop]: 1371 mSDtfsCounter, 1272 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 322 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:13,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 2944 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 912 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2024-11-09 04:17:13,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2024-11-09 04:17:13,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3108. [2024-11-09 04:17:13,464 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) [2024-11-09 04:17:13,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 4205 transitions. [2024-11-09 04:17:13,477 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 4205 transitions. Word has length 38 [2024-11-09 04:17:13,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:13,478 INFO L471 AbstractCegarLoop]: Abstraction has 3108 states and 4205 transitions. [2024-11-09 04:17:13,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:13,478 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 4205 transitions. [2024-11-09 04:17:13,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 04:17:13,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:13,480 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:17:13,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:17:13,480 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:13,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:13,482 INFO L85 PathProgramCache]: Analyzing trace with hash -259542901, now seen corresponding path program 1 times [2024-11-09 04:17:13,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:13,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185928041] [2024-11-09 04:17:13,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:13,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:15,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:15,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:15,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 04:17:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:15,180 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:17:15,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:15,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185928041] [2024-11-09 04:17:15,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185928041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:15,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:15,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:15,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864009081] [2024-11-09 04:17:15,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:15,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:15,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:15,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:15,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:15,182 INFO L87 Difference]: Start difference. First operand 3108 states and 4205 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:19,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:23,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:23,559 INFO L93 Difference]: Finished difference Result 3354 states and 4628 transitions. [2024-11-09 04:17:23,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:17:23,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-11-09 04:17:23,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:23,576 INFO L225 Difference]: With dead ends: 3354 [2024-11-09 04:17:23,577 INFO L226 Difference]: Without dead ends: 3351 [2024-11-09 04:17:23,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:23,580 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 1179 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 248 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:23,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1405 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2024-11-09 04:17:23,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2024-11-09 04:17:23,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 3107. [2024-11-09 04:17:23,685 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) [2024-11-09 04:17:23,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4203 transitions. [2024-11-09 04:17:23,698 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4203 transitions. Word has length 39 [2024-11-09 04:17:23,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:23,699 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4203 transitions. [2024-11-09 04:17:23,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4203 transitions. [2024-11-09 04:17:23,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 04:17:23,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:23,701 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:17:23,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:17:23,702 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:23,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:23,702 INFO L85 PathProgramCache]: Analyzing trace with hash 543692906, now seen corresponding path program 1 times [2024-11-09 04:17:23,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:23,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966752276] [2024-11-09 04:17:23,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:23,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:25,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:25,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:25,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 04:17:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:25,119 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:17:25,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:25,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966752276] [2024-11-09 04:17:25,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966752276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:25,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:25,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:25,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218330843] [2024-11-09 04:17:25,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:25,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:25,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:25,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:25,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:25,125 INFO L87 Difference]: Start difference. First operand 3107 states and 4203 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:29,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:33,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:33,750 INFO L93 Difference]: Finished difference Result 3353 states and 4626 transitions. [2024-11-09 04:17:33,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:17:33,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-11-09 04:17:33,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:33,767 INFO L225 Difference]: With dead ends: 3353 [2024-11-09 04:17:33,768 INFO L226 Difference]: Without dead ends: 3350 [2024-11-09 04:17:33,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:33,772 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 1175 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 246 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:33,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 1404 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2024-11-09 04:17:33,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2024-11-09 04:17:33,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 3106. [2024-11-09 04:17:33,946 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) [2024-11-09 04:17:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 4201 transitions. [2024-11-09 04:17:33,961 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 4201 transitions. Word has length 40 [2024-11-09 04:17:33,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:33,961 INFO L471 AbstractCegarLoop]: Abstraction has 3106 states and 4201 transitions. [2024-11-09 04:17:33,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:33,961 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 4201 transitions. [2024-11-09 04:17:33,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 04:17:33,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:33,963 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:17:33,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:17:33,963 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:33,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:33,963 INFO L85 PathProgramCache]: Analyzing trace with hash -325795986, now seen corresponding path program 1 times [2024-11-09 04:17:33,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:33,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938642162] [2024-11-09 04:17:33,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:33,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:35,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:35,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:35,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 04:17:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:35,306 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:17:35,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:35,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938642162] [2024-11-09 04:17:35,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938642162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:35,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:35,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:35,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080001665] [2024-11-09 04:17:35,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:35,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:35,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:35,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:35,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:35,310 INFO L87 Difference]: Start difference. First operand 3106 states and 4201 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:39,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:43,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:43,746 INFO L93 Difference]: Finished difference Result 3352 states and 4624 transitions. [2024-11-09 04:17:43,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:17:43,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2024-11-09 04:17:43,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:43,761 INFO L225 Difference]: With dead ends: 3352 [2024-11-09 04:17:43,761 INFO L226 Difference]: Without dead ends: 3349 [2024-11-09 04:17:43,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:43,765 INFO L432 NwaCegarLoop]: 884 mSDtfsCounter, 1173 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 246 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:43,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 1399 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2024-11-09 04:17:43,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2024-11-09 04:17:43,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 3105. [2024-11-09 04:17:43,870 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) [2024-11-09 04:17:43,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 4199 transitions. [2024-11-09 04:17:43,880 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 4199 transitions. Word has length 41 [2024-11-09 04:17:43,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:43,881 INFO L471 AbstractCegarLoop]: Abstraction has 3105 states and 4199 transitions. [2024-11-09 04:17:43,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:43,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 4199 transitions. [2024-11-09 04:17:43,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 04:17:43,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:43,882 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:17:43,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:17:43,883 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:43,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:43,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1510142995, now seen corresponding path program 1 times [2024-11-09 04:17:43,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:43,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805164673] [2024-11-09 04:17:43,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:43,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:45,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:45,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:45,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 04:17:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:17:45,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:45,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805164673] [2024-11-09 04:17:45,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805164673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:45,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:45,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:45,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932593148] [2024-11-09 04:17:45,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:45,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:45,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:45,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:45,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:45,414 INFO L87 Difference]: Start difference. First operand 3105 states and 4199 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:49,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:54,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:54,009 INFO L93 Difference]: Finished difference Result 3351 states and 4622 transitions. [2024-11-09 04:17:54,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:17:54,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-11-09 04:17:54,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:54,023 INFO L225 Difference]: With dead ends: 3351 [2024-11-09 04:17:54,023 INFO L226 Difference]: Without dead ends: 3339 [2024-11-09 04:17:54,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:54,025 INFO L432 NwaCegarLoop]: 894 mSDtfsCounter, 1163 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 238 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:54,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 1409 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 429 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2024-11-09 04:17:54,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3339 states. [2024-11-09 04:17:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3339 to 3095. [2024-11-09 04:17:54,131 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) [2024-11-09 04:17:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 4185 transitions. [2024-11-09 04:17:54,141 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 4185 transitions. Word has length 42 [2024-11-09 04:17:54,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:54,141 INFO L471 AbstractCegarLoop]: Abstraction has 3095 states and 4185 transitions. [2024-11-09 04:17:54,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:17:54,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 4185 transitions. [2024-11-09 04:17:54,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 04:17:54,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:54,148 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] [2024-11-09 04:17:54,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 04:17:54,149 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:54,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:54,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1353177793, now seen corresponding path program 1 times [2024-11-09 04:17:54,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:54,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000880405] [2024-11-09 04:17:54,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:54,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:55,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:55,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:55,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 04:17:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:55,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 04:17:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:55,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:17:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:55,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 04:17:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:55,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 04:17:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:55,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-09 04:17:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:55,649 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:17:55,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:55,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000880405] [2024-11-09 04:17:55,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000880405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:55,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:55,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 04:17:55,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788455416] [2024-11-09 04:17:55,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:55,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:17:55,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:55,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:17:55,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:17:55,652 INFO L87 Difference]: Start difference. First operand 3095 states and 4185 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:17:59,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:18:03,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []