./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--esd_usb2.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.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 781669661afd0476205c0d0f127c7931dffbaabf4aae46244e576c29ee5a8115 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 03:18:43,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:18:43,904 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:18:43,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:18:43,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:18:43,956 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:18:43,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:18:43,958 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:18:43,959 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:18:43,961 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:18:43,961 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:18:43,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:18:43,962 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:18:43,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:18:43,963 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:18:43,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:18:43,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:18:43,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:18:43,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:18:43,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:18:43,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:18:43,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:18:43,968 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:18:43,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:18:43,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:18:43,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:18:43,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:18:43,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:18:43,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:18:43,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:18:43,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:18:43,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:18:43,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:18:43,971 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:18:43,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:18:43,973 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:18:43,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:18:43,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:18:43,974 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:18:43,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 781669661afd0476205c0d0f127c7931dffbaabf4aae46244e576c29ee5a8115 [2024-11-19 03:18:44,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:18:44,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:18:44,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:18:44,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:18:44,265 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:18:44,266 INFO L431 ainManager$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--esd_usb2.ko-entry_point.cil.out.i [2024-11-19 03:18:45,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:18:46,282 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:18:46,283 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--esd_usb2.ko-entry_point.cil.out.i [2024-11-19 03:18:46,324 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97dfda393/d824a118edd54d089182d90fd2b05b7d/FLAGca23e28fe [2024-11-19 03:18:46,369 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97dfda393/d824a118edd54d089182d90fd2b05b7d [2024-11-19 03:18:46,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:18:46,374 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:18:46,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:18:46,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:18:46,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:18:46,385 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:46" (1/1) ... [2024-11-19 03:18:46,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb0b947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:46, skipping insertion in model container [2024-11-19 03:18:46,387 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:46" (1/1) ... [2024-11-19 03:18:46,497 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:18:47,557 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--esd_usb2.ko-entry_point.cil.out.i[163937,163950] [2024-11-19 03:18:48,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:18:48,341 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:18:48,428 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"); [5448] [2024-11-19 03:18:48,431 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)); [5455] [2024-11-19 03:18:48,431 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"); [5463-5464] [2024-11-19 03:18:48,435 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)); [5493] [2024-11-19 03:18:48,436 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)); [5500] [2024-11-19 03:18:48,448 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--esd_usb2.ko-entry_point.cil.out.i[163937,163950] [2024-11-19 03:18:48,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:18:48,716 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:18:48,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48 WrapperNode [2024-11-19 03:18:48,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:18:48,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:18:48,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:18:48,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:18:48,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (1/1) ... [2024-11-19 03:18:48,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (1/1) ... [2024-11-19 03:18:48,885 INFO L138 Inliner]: procedures = 161, calls = 852, calls flagged for inlining = 73, calls inlined = 73, statements flattened = 2743 [2024-11-19 03:18:48,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:18:48,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:18:48,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:18:48,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:18:48,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (1/1) ... [2024-11-19 03:18:48,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (1/1) ... [2024-11-19 03:18:48,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (1/1) ... [2024-11-19 03:18:49,285 INFO L175 MemorySlicer]: Split 518 memory accesses to 8 slices as follows [9, 2, 48, 19, 9, 19, 368, 44]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [0, 2, 0, 0, 0, 0, 5, 0]. The 304 writes are split as follows [5, 0, 48, 11, 0, 0, 196, 44]. [2024-11-19 03:18:49,286 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (1/1) ... [2024-11-19 03:18:49,286 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (1/1) ... [2024-11-19 03:18:49,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (1/1) ... [2024-11-19 03:18:49,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (1/1) ... [2024-11-19 03:18:49,394 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (1/1) ... [2024-11-19 03:18:49,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (1/1) ... [2024-11-19 03:18:49,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:18:49,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:18:49,435 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:18:49,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:18:49,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (1/1) ... [2024-11-19 03:18:49,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:18:49,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:18:49,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 03:18:49,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 03:18:49,527 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-19 03:18:49,528 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-19 03:18:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2024-11-19 03:18:49,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2024-11-19 03:18:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_17 [2024-11-19 03:18:49,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_17 [2024-11-19 03:18:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:18:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:18:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:18:49,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:18:49,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:18:49,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:18:49,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 03:18:49,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-19 03:18:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2024-11-19 03:18:49,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2024-11-19 03:18:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-11-19 03:18:49,530 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-11-19 03:18:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:18:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:18:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:18:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:18:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:18:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:18:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 03:18:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-19 03:18:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-19 03:18:49,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-19 03:18:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 03:18:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 03:18:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 03:18:49,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 03:18:49,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 03:18:49,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 03:18:49,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 03:18:49,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 03:18:49,532 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-19 03:18:49,532 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-19 03:18:49,532 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2024-11-19 03:18:49,532 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2024-11-19 03:18:49,533 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-19 03:18:49,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-19 03:18:49,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-19 03:18:49,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-19 03:18:49,537 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-19 03:18:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-19 03:18:49,537 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-19 03:18:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-19 03:18:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 03:18:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 03:18:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-19 03:18:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-19 03:18:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-19 03:18:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-19 03:18:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-19 03:18:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-19 03:18:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-19 03:18:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-19 03:18:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:18:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:18:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:18:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:18:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:18:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:18:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 03:18:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 03:18:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:18:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:18:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2024-11-19 03:18:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2024-11-19 03:18:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-19 03:18:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-19 03:18:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 03:18:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 03:18:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-19 03:18:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-19 03:18:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:18:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-19 03:18:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-19 03:18:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-19 03:18:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-19 03:18:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_4 [2024-11-19 03:18:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_4 [2024-11-19 03:18:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:18:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-19 03:18:49,546 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-19 03:18:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-19 03:18:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-19 03:18:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:18:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:18:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:18:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:18:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:18:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:18:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:18:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 03:18:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 03:18:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-19 03:18:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-19 03:18:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-19 03:18:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-19 03:18:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-19 03:18:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-19 03:18:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:18:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:18:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:18:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:18:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:18:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:18:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 03:18:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 03:18:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-19 03:18:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-19 03:18:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-19 03:18:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-19 03:18:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-19 03:18:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-19 03:18:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:18:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-19 03:18:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-19 03:18:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_read_bulk_callback [2024-11-19 03:18:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_read_bulk_callback [2024-11-19 03:18:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-19 03:18:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-19 03:18:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-19 03:18:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-19 03:18:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_send_msg [2024-11-19 03:18:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_send_msg [2024-11-19 03:18:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-19 03:18:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-19 03:18:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-19 03:18:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-19 03:18:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-19 03:18:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-19 03:18:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-19 03:18:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-19 03:18:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-19 03:18:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-19 03:18:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-19 03:18:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-19 03:18:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-19 03:18:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-19 03:18:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-19 03:18:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-19 03:18:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-19 03:18:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-19 03:18:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:18:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:18:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:18:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:18:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:18:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:18:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 03:18:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 03:18:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-19 03:18:49,563 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-19 03:18:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-19 03:18:49,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-19 03:18:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2024-11-19 03:18:49,563 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2024-11-19 03:18:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_disconnect [2024-11-19 03:18:49,564 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_disconnect [2024-11-19 03:18:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:18:49,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:18:50,052 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:18:50,056 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:18:50,181 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-19 03:18:50,406 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-19 03:18:57,635 INFO L? ?]: Removed 1051 outVars from TransFormulas that were not future-live. [2024-11-19 03:18:57,635 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:18:57,685 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:18:57,685 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 03:18:57,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:57 BoogieIcfgContainer [2024-11-19 03:18:57,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:18:57,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:18:57,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:18:57,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:18:57,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:18:46" (1/3) ... [2024-11-19 03:18:57,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fe313b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:18:57, skipping insertion in model container [2024-11-19 03:18:57,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:48" (2/3) ... [2024-11-19 03:18:57,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fe313b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:18:57, skipping insertion in model container [2024-11-19 03:18:57,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:57" (3/3) ... [2024-11-19 03:18:57,699 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i [2024-11-19 03:18:57,715 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:18:57,716 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:18:57,802 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:18:57,810 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;@68f29a45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:18:57,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:18:57,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 847 states, 629 states have (on average 1.356120826709062) internal successors, (853), 655 states have internal predecessors, (853), 167 states have call successors, (167), 51 states have call predecessors, (167), 49 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-19 03:18:57,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-19 03:18:57,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:57,839 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:18:57,840 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:57,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:57,846 INFO L85 PathProgramCache]: Analyzing trace with hash 569038334, now seen corresponding path program 1 times [2024-11-19 03:18:57,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:57,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403235943] [2024-11-19 03:18:57,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:57,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:02,097 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-19 03:19:02,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:02,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403235943] [2024-11-19 03:19:02,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403235943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:02,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:02,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:02,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591216522] [2024-11-19 03:19:02,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:02,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:02,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:02,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:02,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:02,134 INFO L87 Difference]: Start difference. First operand has 847 states, 629 states have (on average 1.356120826709062) internal successors, (853), 655 states have internal predecessors, (853), 167 states have call successors, (167), 51 states have call predecessors, (167), 49 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 03:19:06,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:19:06,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:06,985 INFO L93 Difference]: Finished difference Result 2479 states and 3511 transitions. [2024-11-19 03:19:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:06,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 83 [2024-11-19 03:19:06,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:07,028 INFO L225 Difference]: With dead ends: 2479 [2024-11-19 03:19:07,028 INFO L226 Difference]: Without dead ends: 1609 [2024-11-19 03:19:07,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:07,044 INFO L432 NwaCegarLoop]: 1162 mSDtfsCounter, 1080 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:07,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 2297 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-11-19 03:19:07,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2024-11-19 03:19:07,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1609. [2024-11-19 03:19:07,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1214 states have (on average 1.316309719934102) internal successors, (1598), 1240 states have internal predecessors, (1598), 298 states have call successors, (298), 97 states have call predecessors, (298), 96 states have return successors, (293), 289 states have call predecessors, (293), 293 states have call successors, (293) [2024-11-19 03:19:07,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2189 transitions. [2024-11-19 03:19:07,238 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2189 transitions. Word has length 83 [2024-11-19 03:19:07,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:07,239 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2189 transitions. [2024-11-19 03:19:07,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 03:19:07,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2189 transitions. [2024-11-19 03:19:07,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 03:19:07,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:07,248 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:07,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 03:19:07,249 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:07,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:07,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1592493928, now seen corresponding path program 1 times [2024-11-19 03:19:07,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:07,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228895201] [2024-11-19 03:19:07,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:07,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:10,974 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 03:19:10,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:10,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228895201] [2024-11-19 03:19:10,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228895201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:10,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:10,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:10,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539536392] [2024-11-19 03:19:10,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:10,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:10,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:10,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:10,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:10,982 INFO L87 Difference]: Start difference. First operand 1609 states and 2189 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 03:19:11,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:11,498 INFO L93 Difference]: Finished difference Result 4776 states and 6510 transitions. [2024-11-19 03:19:11,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:11,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 93 [2024-11-19 03:19:11,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:11,526 INFO L225 Difference]: With dead ends: 4776 [2024-11-19 03:19:11,526 INFO L226 Difference]: Without dead ends: 3192 [2024-11-19 03:19:11,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:11,536 INFO L432 NwaCegarLoop]: 1591 mSDtfsCounter, 1085 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:11,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 2673 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 03:19:11,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2024-11-19 03:19:11,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 3182. [2024-11-19 03:19:11,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3182 states, 2409 states have (on average 1.3163138231631382) internal successors, (3171), 2457 states have internal predecessors, (3171), 580 states have call successors, (580), 193 states have call predecessors, (580), 192 states have return successors, (585), 567 states have call predecessors, (585), 575 states have call successors, (585) [2024-11-19 03:19:11,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3182 states to 3182 states and 4336 transitions. [2024-11-19 03:19:11,715 INFO L78 Accepts]: Start accepts. Automaton has 3182 states and 4336 transitions. Word has length 93 [2024-11-19 03:19:11,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:11,718 INFO L471 AbstractCegarLoop]: Abstraction has 3182 states and 4336 transitions. [2024-11-19 03:19:11,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 03:19:11,718 INFO L276 IsEmpty]: Start isEmpty. Operand 3182 states and 4336 transitions. [2024-11-19 03:19:11,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-19 03:19:11,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:11,725 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:11,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:19:11,725 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:11,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:11,725 INFO L85 PathProgramCache]: Analyzing trace with hash -2123005374, now seen corresponding path program 1 times [2024-11-19 03:19:11,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:11,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636507506] [2024-11-19 03:19:11,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:11,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:15,117 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 03:19:15,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:15,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636507506] [2024-11-19 03:19:15,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636507506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:15,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:15,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:15,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893614677] [2024-11-19 03:19:15,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:15,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:15,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:15,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:15,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:15,120 INFO L87 Difference]: Start difference. First operand 3182 states and 4336 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 03:19:15,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:15,234 INFO L93 Difference]: Finished difference Result 3184 states and 4337 transitions. [2024-11-19 03:19:15,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:15,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 94 [2024-11-19 03:19:15,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:15,258 INFO L225 Difference]: With dead ends: 3184 [2024-11-19 03:19:15,258 INFO L226 Difference]: Without dead ends: 3181 [2024-11-19 03:19:15,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:15,264 INFO L432 NwaCegarLoop]: 1127 mSDtfsCounter, 1085 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:15,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 1127 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:19:15,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2024-11-19 03:19:15,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 3181. [2024-11-19 03:19:15,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2409 states have (on average 1.3158987131589872) internal successors, (3170), 2456 states have internal predecessors, (3170), 579 states have call successors, (579), 193 states have call predecessors, (579), 192 states have return successors, (585), 567 states have call predecessors, (585), 575 states have call successors, (585) [2024-11-19 03:19:15,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4334 transitions. [2024-11-19 03:19:15,434 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4334 transitions. Word has length 94 [2024-11-19 03:19:15,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:15,436 INFO L471 AbstractCegarLoop]: Abstraction has 3181 states and 4334 transitions. [2024-11-19 03:19:15,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 03:19:15,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4334 transitions. [2024-11-19 03:19:15,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-19 03:19:15,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:15,439 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:15,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:19:15,439 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:15,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:15,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1388986149, now seen corresponding path program 1 times [2024-11-19 03:19:15,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:15,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787696053] [2024-11-19 03:19:15,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:15,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 03:19:18,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:18,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787696053] [2024-11-19 03:19:18,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787696053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:18,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:18,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:18,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46540567] [2024-11-19 03:19:18,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:18,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:18,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:18,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:18,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:18,205 INFO L87 Difference]: Start difference. First operand 3181 states and 4334 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 03:19:18,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:18,320 INFO L93 Difference]: Finished difference Result 3183 states and 4335 transitions. [2024-11-19 03:19:18,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:18,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 95 [2024-11-19 03:19:18,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:18,342 INFO L225 Difference]: With dead ends: 3183 [2024-11-19 03:19:18,342 INFO L226 Difference]: Without dead ends: 3180 [2024-11-19 03:19:18,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:18,347 INFO L432 NwaCegarLoop]: 1125 mSDtfsCounter, 1082 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:18,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 1125 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:19:18,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2024-11-19 03:19:18,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 3180. [2024-11-19 03:19:18,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3180 states, 2409 states have (on average 1.315483603154836) internal successors, (3169), 2455 states have internal predecessors, (3169), 578 states have call successors, (578), 193 states have call predecessors, (578), 192 states have return successors, (585), 567 states have call predecessors, (585), 575 states have call successors, (585) [2024-11-19 03:19:18,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3180 states to 3180 states and 4332 transitions. [2024-11-19 03:19:18,508 INFO L78 Accepts]: Start accepts. Automaton has 3180 states and 4332 transitions. Word has length 95 [2024-11-19 03:19:18,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:18,509 INFO L471 AbstractCegarLoop]: Abstraction has 3180 states and 4332 transitions. [2024-11-19 03:19:18,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 03:19:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3180 states and 4332 transitions. [2024-11-19 03:19:18,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-19 03:19:18,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:18,513 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:18,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:19:18,513 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:18,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:18,514 INFO L85 PathProgramCache]: Analyzing trace with hash -109221787, now seen corresponding path program 1 times [2024-11-19 03:19:18,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:18,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217852593] [2024-11-19 03:19:18,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:18,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 03:19:21,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:21,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217852593] [2024-11-19 03:19:21,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217852593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:21,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:21,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:21,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59218308] [2024-11-19 03:19:21,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:21,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:21,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:21,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:21,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:21,370 INFO L87 Difference]: Start difference. First operand 3180 states and 4332 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 03:19:21,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:21,498 INFO L93 Difference]: Finished difference Result 3182 states and 4333 transitions. [2024-11-19 03:19:21,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:21,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 96 [2024-11-19 03:19:21,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:21,519 INFO L225 Difference]: With dead ends: 3182 [2024-11-19 03:19:21,519 INFO L226 Difference]: Without dead ends: 3179 [2024-11-19 03:19:21,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:21,523 INFO L432 NwaCegarLoop]: 1123 mSDtfsCounter, 1079 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:21,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 1123 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:19:21,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2024-11-19 03:19:21,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 3179. [2024-11-19 03:19:21,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3179 states, 2409 states have (on average 1.3150684931506849) internal successors, (3168), 2454 states have internal predecessors, (3168), 577 states have call successors, (577), 193 states have call predecessors, (577), 192 states have return successors, (585), 567 states have call predecessors, (585), 575 states have call successors, (585) [2024-11-19 03:19:21,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 4330 transitions. [2024-11-19 03:19:21,735 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 4330 transitions. Word has length 96 [2024-11-19 03:19:21,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:21,735 INFO L471 AbstractCegarLoop]: Abstraction has 3179 states and 4330 transitions. [2024-11-19 03:19:21,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 03:19:21,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 4330 transitions. [2024-11-19 03:19:21,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-19 03:19:21,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:21,737 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:21,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 03:19:21,737 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:21,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:21,738 INFO L85 PathProgramCache]: Analyzing trace with hash 908772638, now seen corresponding path program 1 times [2024-11-19 03:19:21,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:21,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487892307] [2024-11-19 03:19:21,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:21,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 03:19:24,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:24,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487892307] [2024-11-19 03:19:24,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487892307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:24,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:24,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:24,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201816897] [2024-11-19 03:19:24,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:24,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:24,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:24,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:24,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:24,673 INFO L87 Difference]: Start difference. First operand 3179 states and 4330 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 03:19:24,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:24,793 INFO L93 Difference]: Finished difference Result 3181 states and 4331 transitions. [2024-11-19 03:19:24,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:24,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 97 [2024-11-19 03:19:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:24,811 INFO L225 Difference]: With dead ends: 3181 [2024-11-19 03:19:24,811 INFO L226 Difference]: Without dead ends: 3169 [2024-11-19 03:19:24,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:24,814 INFO L432 NwaCegarLoop]: 1122 mSDtfsCounter, 1076 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:24,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:19:24,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2024-11-19 03:19:24,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 3169. [2024-11-19 03:19:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3169 states, 2400 states have (on average 1.3145833333333334) internal successors, (3155), 2444 states have internal predecessors, (3155), 576 states have call successors, (576), 193 states have call predecessors, (576), 192 states have return successors, (585), 567 states have call predecessors, (585), 575 states have call successors, (585) [2024-11-19 03:19:24,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 4316 transitions. [2024-11-19 03:19:24,990 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 4316 transitions. Word has length 97 [2024-11-19 03:19:24,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:24,991 INFO L471 AbstractCegarLoop]: Abstraction has 3169 states and 4316 transitions. [2024-11-19 03:19:24,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 03:19:24,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 4316 transitions. [2024-11-19 03:19:24,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 03:19:24,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:24,998 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:24,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 03:19:24,999 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:24,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:24,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1366918827, now seen corresponding path program 1 times [2024-11-19 03:19:24,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:25,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206075214] [2024-11-19 03:19:25,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:25,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:27,763 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 03:19:27,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:27,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206075214] [2024-11-19 03:19:27,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206075214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:27,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:27,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:27,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748401939] [2024-11-19 03:19:27,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:27,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:27,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:27,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:27,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:27,770 INFO L87 Difference]: Start difference. First operand 3169 states and 4316 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 03:19:28,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:28,288 INFO L93 Difference]: Finished difference Result 7366 states and 9973 transitions. [2024-11-19 03:19:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:28,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2024-11-19 03:19:28,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:28,312 INFO L225 Difference]: With dead ends: 7366 [2024-11-19 03:19:28,313 INFO L226 Difference]: Without dead ends: 4222 [2024-11-19 03:19:28,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:28,326 INFO L432 NwaCegarLoop]: 1154 mSDtfsCounter, 385 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:28,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 2218 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 03:19:28,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2024-11-19 03:19:28,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 4214. [2024-11-19 03:19:28,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4214 states, 3185 states have (on average 1.3058084772370486) internal successors, (4159), 3237 states have internal predecessors, (4159), 757 states have call successors, (757), 272 states have call predecessors, (757), 271 states have return successors, (766), 748 states have call predecessors, (766), 756 states have call successors, (766) [2024-11-19 03:19:28,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4214 states to 4214 states and 5682 transitions. [2024-11-19 03:19:28,553 INFO L78 Accepts]: Start accepts. Automaton has 4214 states and 5682 transitions. Word has length 147 [2024-11-19 03:19:28,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:28,553 INFO L471 AbstractCegarLoop]: Abstraction has 4214 states and 5682 transitions. [2024-11-19 03:19:28,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 03:19:28,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4214 states and 5682 transitions. [2024-11-19 03:19:28,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-19 03:19:28,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:28,562 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:28,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 03:19:28,562 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:28,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:28,563 INFO L85 PathProgramCache]: Analyzing trace with hash 543592965, now seen corresponding path program 1 times [2024-11-19 03:19:28,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:28,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180209309] [2024-11-19 03:19:28,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:28,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:31,340 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-19 03:19:31,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:31,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180209309] [2024-11-19 03:19:31,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180209309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:31,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:31,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:31,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132776127] [2024-11-19 03:19:31,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:31,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:31,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:31,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:31,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:31,343 INFO L87 Difference]: Start difference. First operand 4214 states and 5682 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 03:19:35,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:19:36,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:36,389 INFO L93 Difference]: Finished difference Result 9490 states and 12777 transitions. [2024-11-19 03:19:36,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:36,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 164 [2024-11-19 03:19:36,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:36,425 INFO L225 Difference]: With dead ends: 9490 [2024-11-19 03:19:36,425 INFO L226 Difference]: Without dead ends: 5308 [2024-11-19 03:19:36,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:36,448 INFO L432 NwaCegarLoop]: 1467 mSDtfsCounter, 366 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:36,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 2559 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-11-19 03:19:36,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5308 states. [2024-11-19 03:19:36,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5308 to 5300. [2024-11-19 03:19:36,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5300 states, 4013 states have (on average 1.3020184400697732) internal successors, (5225), 4073 states have internal predecessors, (5225), 937 states have call successors, (937), 350 states have call predecessors, (937), 349 states have return successors, (946), 928 states have call predecessors, (946), 936 states have call successors, (946) [2024-11-19 03:19:36,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 7108 transitions. [2024-11-19 03:19:36,778 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 7108 transitions. Word has length 164 [2024-11-19 03:19:36,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:36,779 INFO L471 AbstractCegarLoop]: Abstraction has 5300 states and 7108 transitions. [2024-11-19 03:19:36,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 03:19:36,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 7108 transitions. [2024-11-19 03:19:36,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-19 03:19:36,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:36,787 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:36,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 03:19:36,787 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:36,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:36,788 INFO L85 PathProgramCache]: Analyzing trace with hash 146575302, now seen corresponding path program 1 times [2024-11-19 03:19:36,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:36,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414230886] [2024-11-19 03:19:36,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:36,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:39,718 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-19 03:19:39,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:39,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414230886] [2024-11-19 03:19:39,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414230886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:39,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:19:39,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:19:39,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583268249] [2024-11-19 03:19:39,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:39,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:19:39,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:39,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:19:39,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:39,722 INFO L87 Difference]: Start difference. First operand 5300 states and 7108 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 03:19:43,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:19:44,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:44,783 INFO L93 Difference]: Finished difference Result 12794 states and 17091 transitions. [2024-11-19 03:19:44,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:19:44,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 178 [2024-11-19 03:19:44,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:44,844 INFO L225 Difference]: With dead ends: 12794 [2024-11-19 03:19:44,844 INFO L226 Difference]: Without dead ends: 7526 [2024-11-19 03:19:44,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:19:44,865 INFO L432 NwaCegarLoop]: 1813 mSDtfsCounter, 852 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:44,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 2789 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-11-19 03:19:44,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7526 states. [2024-11-19 03:19:45,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7526 to 7518. [2024-11-19 03:19:45,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 5737 states have (on average 1.3039916332578003) internal successors, (7481), 5821 states have internal predecessors, (7481), 1253 states have call successors, (1253), 528 states have call predecessors, (1253), 527 states have return successors, (1262), 1240 states have call predecessors, (1262), 1252 states have call successors, (1262) [2024-11-19 03:19:45,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 9996 transitions. [2024-11-19 03:19:45,264 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 9996 transitions. Word has length 178 [2024-11-19 03:19:45,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:45,264 INFO L471 AbstractCegarLoop]: Abstraction has 7518 states and 9996 transitions. [2024-11-19 03:19:45,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 03:19:45,265 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 9996 transitions. [2024-11-19 03:19:45,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-19 03:19:45,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:45,274 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:45,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 03:19:45,274 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:45,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:45,275 INFO L85 PathProgramCache]: Analyzing trace with hash -889167939, now seen corresponding path program 1 times [2024-11-19 03:19:45,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:45,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723292171] [2024-11-19 03:19:45,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:45,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:48,053 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2024-11-19 03:19:48,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:48,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723292171] [2024-11-19 03:19:48,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723292171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:19:48,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383428860] [2024-11-19 03:19:48,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:48,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:19:48,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:19:48,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:19:48,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 03:19:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:51,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:19:51,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:19:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-19 03:19:54,660 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:19:54,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383428860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:54,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:19:54,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-19 03:19:54,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060709468] [2024-11-19 03:19:54,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:54,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:19:54,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:54,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:19:54,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:19:54,663 INFO L87 Difference]: Start difference. First operand 7518 states and 9996 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-19 03:19:58,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []