/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-05 10:31:57,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 10:31:57,279 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-05 10:31:57,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 10:31:57,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 10:31:57,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 10:31:57,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 10:31:57,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 10:31:57,306 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 10:31:57,306 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 10:31:57,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 10:31:57,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 10:31:57,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 10:31:57,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 10:31:57,307 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 10:31:57,308 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 10:31:57,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 10:31:57,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 10:31:57,308 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 10:31:57,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 10:31:57,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 10:31:57,312 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 10:31:57,312 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 10:31:57,312 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 10:31:57,313 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 10:31:57,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 10:31:57,313 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 10:31:57,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 10:31:57,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 10:31:57,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 10:31:57,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 10:31:57,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 10:31:57,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 10:31:57,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 10:31:57,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 10:31:57,314 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 10:31:57,315 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 10:31:57,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 10:31:57,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 10:31:57,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 10:31:57,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 10:31:57,315 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-05 10:31:57,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 10:31:57,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 10:31:57,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 10:31:57,497 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 10:31:57,498 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 10:31:57,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2024-11-05 10:31:58,717 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 10:31:58,999 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 10:31:58,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2024-11-05 10:31:59,026 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6f692e4e/0a5bc46c11fb41f9925e2fca0f652dc8/FLAG1da4fc976 [2024-11-05 10:31:59,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6f692e4e/0a5bc46c11fb41f9925e2fca0f652dc8 [2024-11-05 10:31:59,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 10:31:59,050 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 10:31:59,051 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 10:31:59,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 10:31:59,057 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 10:31:59,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:31:59" (1/1) ... [2024-11-05 10:31:59,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b822bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:59, skipping insertion in model container [2024-11-05 10:31:59,059 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:31:59" (1/1) ... [2024-11-05 10:31:59,133 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 10:31:59,615 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,776 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,814 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,817 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,820 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,828 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,844 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,845 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,845 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,846 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,872 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,872 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,873 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,877 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,877 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,878 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,879 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,879 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,898 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,905 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,905 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,908 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,912 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,914 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,915 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,915 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,923 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,978 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:31:59,987 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,005 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,007 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,008 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,008 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,009 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,009 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,013 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,013 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,036 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2024-11-05 10:32:00,047 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,047 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,063 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 10:32:00,093 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-05 10:32:00,112 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 10:32:00,171 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,185 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,195 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,196 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,197 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,198 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,200 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,200 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,200 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,202 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,203 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,203 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,205 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,205 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,205 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,206 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,207 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,207 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,210 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,211 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,211 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,212 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,214 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,215 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,216 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,216 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,218 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,220 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,221 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,224 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,227 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,228 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,228 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,229 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,229 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,229 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,230 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,235 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2024-11-05 10:32:00,241 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,241 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,248 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-05 10:32:00,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 10:32:00,268 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 10:32:00,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4831-4837] [2024-11-05 10:32:00,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [4844-4850] [2024-11-05 10:32:00,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "btr %2,%1\n\t" "sbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4857-4864] [2024-11-05 10:32:00,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "incl %0": "+m" (v->counter)); [4894-4900] [2024-11-05 10:32:00,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "decl %0": "+m" (v->counter)); [4907-4913] [2024-11-05 10:32:00,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n" ".pushsection __bug_table,\"a\"\n" "2:\t.long 1b - 2b, %c0 - 2b\n" "\t.word %c1, 0\n" "\t.org 2b+%c2\n" ".popsection": : "i" ("/anthill/stuff/tacas-comp/work/current--X--drivers/net/can/usb/ems_usb.ko--X--bulklinux-3.0.1--X--68_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/68_1/drivers/net/can/usb/ems_usb.c.common.c"), "i" (510), "i" (sizeof(struct bug_entry ))); [5717-5723] [2024-11-05 10:32:00,467 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2024-11-05 10:32:00,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 10:32:00,585 INFO L204 MainTranslator]: Completed translation [2024-11-05 10:32:00,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00 WrapperNode [2024-11-05 10:32:00,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 10:32:00,588 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 10:32:00,588 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 10:32:00,588 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 10:32:00,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (1/1) ... [2024-11-05 10:32:00,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (1/1) ... [2024-11-05 10:32:00,699 INFO L138 Inliner]: procedures = 144, calls = 778, calls flagged for inlining = 54, calls inlined = 44, statements flattened = 1577 [2024-11-05 10:32:00,700 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 10:32:00,700 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 10:32:00,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 10:32:00,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 10:32:00,708 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (1/1) ... [2024-11-05 10:32:00,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (1/1) ... [2024-11-05 10:32:00,720 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (1/1) ... [2024-11-05 10:32:00,851 INFO L175 MemorySlicer]: Split 342 memory accesses to 8 slices as follows [2, 10, 8, 8, 8, 261, 3, 42]. 76 percent of accesses are in the largest equivalence class. The 34 initializations are split as follows [2, 0, 8, 8, 8, 8, 0, 0]. The 214 writes are split as follows [0, 0, 0, 0, 0, 172, 0, 42]. [2024-11-05 10:32:00,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (1/1) ... [2024-11-05 10:32:00,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (1/1) ... [2024-11-05 10:32:00,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (1/1) ... [2024-11-05 10:32:00,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (1/1) ... [2024-11-05 10:32:00,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (1/1) ... [2024-11-05 10:32:00,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (1/1) ... [2024-11-05 10:32:00,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 10:32:00,955 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 10:32:00,955 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 10:32:00,955 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 10:32:00,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (1/1) ... [2024-11-05 10:32:00,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 10:32:00,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 10:32:00,978 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) [2024-11-05 10:32:00,980 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 [2024-11-05 10:32:00,998 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-05 10:32:00,998 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-05 10:32:00,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-05 10:32:00,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-05 10:32:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-05 10:32:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-05 10:32:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-05 10:32:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-05 10:32:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-05 10:32:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-11-05 10:32:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_init [2024-11-05 10:32:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_init [2024-11-05 10:32:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-11-05 10:32:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-11-05 10:32:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-05 10:32:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-05 10:32:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-05 10:32:01,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-05 10:32:01,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-05 10:32:01,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-05 10:32:01,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#6 [2024-11-05 10:32:01,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#7 [2024-11-05 10:32:01,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-05 10:32:01,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-05 10:32:01,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-05 10:32:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-05 10:32:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-05 10:32:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-05 10:32:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-05 10:32:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-05 10:32:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-05 10:32:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-05 10:32:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-05 10:32:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-05 10:32:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-05 10:32:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-05 10:32:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-05 10:32:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-05 10:32:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-05 10:32:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-05 10:32:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-05 10:32:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-05 10:32:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-05 10:32:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-05 10:32:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-05 10:32:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-05 10:32:01,003 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-05 10:32:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-05 10:32:01,003 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2024-11-05 10:32:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2024-11-05 10:32:01,003 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-05 10:32:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-05 10:32:01,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-05 10:32:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-05 10:32:01,003 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_exit [2024-11-05 10:32:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_exit [2024-11-05 10:32:01,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-05 10:32:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-05 10:32:01,003 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-05 10:32:01,004 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-05 10:32:01,004 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-05 10:32:01,004 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-05 10:32:01,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2024-11-05 10:32:01,004 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2024-11-05 10:32:01,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2024-11-05 10:32:01,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2024-11-05 10:32:01,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-05 10:32:01,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-05 10:32:01,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-05 10:32:01,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-05 10:32:01,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-05 10:32:01,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-05 10:32:01,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#7 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#2 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#3 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#4 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#5 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#6 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#7 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#6 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#7 [2024-11-05 10:32:01,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-05 10:32:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-05 10:32:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-05 10:32:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-05 10:32:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-05 10:32:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#5 [2024-11-05 10:32:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#6 [2024-11-05 10:32:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#7 [2024-11-05 10:32:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2024-11-05 10:32:01,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2024-11-05 10:32:01,006 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-05 10:32:01,007 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-05 10:32:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2024-11-05 10:32:01,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2024-11-05 10:32:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-05 10:32:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-05 10:32:01,007 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-05 10:32:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 10:32:01,007 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-05 10:32:01,007 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-05 10:32:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-05 10:32:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-05 10:32:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-05 10:32:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-05 10:32:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-05 10:32:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-05 10:32:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-05 10:32:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-05 10:32:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-05 10:32:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#0 [2024-11-05 10:32:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#1 [2024-11-05 10:32:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#2 [2024-11-05 10:32:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#3 [2024-11-05 10:32:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#4 [2024-11-05 10:32:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#5 [2024-11-05 10:32:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#6 [2024-11-05 10:32:01,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#7 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2024-11-05 10:32:01,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#0 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#1 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#2 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#3 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#4 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#5 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#6 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#7 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#0 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#1 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#2 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#3 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#4 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#5 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#6 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#7 [2024-11-05 10:32:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-05 10:32:01,010 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-05 10:32:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-05 10:32:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-05 10:32:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-05 10:32:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-05 10:32:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-05 10:32:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-05 10:32:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-05 10:32:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-05 10:32:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-05 10:32:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-05 10:32:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-05 10:32:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-05 10:32:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-05 10:32:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-05 10:32:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-05 10:32:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#6 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#7 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-11-05 10:32:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-05 10:32:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-05 10:32:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-05 10:32:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-05 10:32:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-05 10:32:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-05 10:32:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-05 10:32:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-05 10:32:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-05 10:32:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-05 10:32:01,013 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-05 10:32:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 10:32:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-05 10:32:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-05 10:32:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-05 10:32:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-05 10:32:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-05 10:32:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-05 10:32:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-05 10:32:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-05 10:32:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-05 10:32:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-05 10:32:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-05 10:32:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-05 10:32:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-05 10:32:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-05 10:32:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-05 10:32:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-05 10:32:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-05 10:32:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-05 10:32:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-05 10:32:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-05 10:32:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-05 10:32:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2024-11-05 10:32:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2024-11-05 10:32:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-05 10:32:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-05 10:32:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-05 10:32:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-05 10:32:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#0 [2024-11-05 10:32:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#1 [2024-11-05 10:32:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#2 [2024-11-05 10:32:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#3 [2024-11-05 10:32:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#4 [2024-11-05 10:32:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#5 [2024-11-05 10:32:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#6 [2024-11-05 10:32:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#7 [2024-11-05 10:32:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-05 10:32:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-05 10:32:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2024-11-05 10:32:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2024-11-05 10:32:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 10:32:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 10:32:01,360 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 10:32:01,362 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 10:32:02,515 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2024-11-05 10:32:07,025 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-05 10:32:32,936 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2024-11-05 10:32:32,936 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2024-11-05 10:32:33,125 INFO L? ?]: Removed 599 outVars from TransFormulas that were not future-live. [2024-11-05 10:32:33,125 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 10:32:33,149 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 10:32:33,150 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-05 10:32:33,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:32:33 BoogieIcfgContainer [2024-11-05 10:32:33,150 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 10:32:33,151 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 10:32:33,151 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 10:32:33,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 10:32:33,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:31:59" (1/3) ... [2024-11-05 10:32:33,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781c280e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:32:33, skipping insertion in model container [2024-11-05 10:32:33,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:32:00" (2/3) ... [2024-11-05 10:32:33,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781c280e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:32:33, skipping insertion in model container [2024-11-05 10:32:33,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:32:33" (3/3) ... [2024-11-05 10:32:33,156 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2024-11-05 10:32:33,168 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 10:32:33,168 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 10:32:33,227 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 10:32:33,236 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;@249a0eae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 10:32:33,236 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 10:32:33,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 482 states, 331 states have (on average 1.3232628398791542) internal successors, (438), 343 states have internal predecessors, (438), 112 states have call successors, (112), 38 states have call predecessors, (112), 37 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-05 10:32:33,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-05 10:32:33,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 10:32:33,247 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 10:32:33,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 10:32:33,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 10:32:33,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1986823710, now seen corresponding path program 1 times [2024-11-05 10:32:33,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 10:32:33,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532165569] [2024-11-05 10:32:33,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 10:32:33,260 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 10:32:33,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 10:32:33,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 10:32:33,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-05 10:32:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 10:32:36,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-05 10:32:36,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 10:32:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 10:32:37,901 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 10:32:39,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 10:32:39,293 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 10:32:39,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532165569] [2024-11-05 10:32:39,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1532165569] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 10:32:39,294 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 10:32:39,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2024-11-05 10:32:39,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275452476] [2024-11-05 10:32:39,296 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 10:32:39,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-05 10:32:39,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 10:32:39,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-05 10:32:39,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-05 10:32:39,319 INFO L87 Difference]: Start difference. First operand has 482 states, 331 states have (on average 1.3232628398791542) internal successors, (438), 343 states have internal predecessors, (438), 112 states have call successors, (112), 38 states have call predecessors, (112), 37 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-05 10:32:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 10:32:40,143 INFO L93 Difference]: Finished difference Result 948 states and 1320 transitions. [2024-11-05 10:32:40,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-05 10:32:40,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-05 10:32:40,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 10:32:40,157 INFO L225 Difference]: With dead ends: 948 [2024-11-05 10:32:40,157 INFO L226 Difference]: Without dead ends: 475 [2024-11-05 10:32:40,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-05 10:32:40,166 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 0 mSDsluCounter, 1865 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-05 10:32:40,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2489 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-05 10:32:40,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-05 10:32:40,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 475. [2024-11-05 10:32:40,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 327 states have (on average 1.235474006116208) internal successors, (404), 335 states have internal predecessors, (404), 110 states have call successors, (110), 37 states have call predecessors, (110), 37 states have return successors, (107), 105 states have call predecessors, (107), 106 states have call successors, (107) [2024-11-05 10:32:40,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 621 transitions. [2024-11-05 10:32:40,243 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 621 transitions. Word has length 21 [2024-11-05 10:32:40,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 10:32:40,244 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 621 transitions. [2024-11-05 10:32:40,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-05 10:32:40,244 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 621 transitions. [2024-11-05 10:32:40,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-05 10:32:40,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 10:32:40,245 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 10:32:40,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-05 10:32:40,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 10:32:40,448 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 10:32:40,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 10:32:40,449 INFO L85 PathProgramCache]: Analyzing trace with hash -738402021, now seen corresponding path program 1 times [2024-11-05 10:32:40,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 10:32:40,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732996340] [2024-11-05 10:32:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 10:32:40,449 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 10:32:40,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 10:32:40,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 10:32:40,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-05 10:32:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 10:32:43,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-05 10:32:43,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 10:32:46,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-05 10:32:46,165 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 10:32:48,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-05 10:32:48,003 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 10:32:48,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732996340] [2024-11-05 10:32:48,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1732996340] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 10:32:48,003 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 10:32:48,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-05 10:32:48,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53837887] [2024-11-05 10:32:48,004 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 10:32:48,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-05 10:32:48,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 10:32:48,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-05 10:32:48,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-05 10:32:48,006 INFO L87 Difference]: Start difference. First operand 475 states and 621 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-05 10:32:48,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 10:32:48,518 INFO L93 Difference]: Finished difference Result 1381 states and 1820 transitions. [2024-11-05 10:32:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-05 10:32:48,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 26 [2024-11-05 10:32:48,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 10:32:48,529 INFO L225 Difference]: With dead ends: 1381 [2024-11-05 10:32:48,530 INFO L226 Difference]: Without dead ends: 926 [2024-11-05 10:32:48,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-05 10:32:48,532 INFO L432 NwaCegarLoop]: 680 mSDtfsCounter, 591 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-05 10:32:48,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 1269 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-05 10:32:48,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-05 10:32:48,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 922. [2024-11-05 10:32:48,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 636 states have (on average 1.2358490566037736) internal successors, (786), 648 states have internal predecessors, (786), 213 states have call successors, (213), 72 states have call predecessors, (213), 72 states have return successors, (213), 206 states have call predecessors, (213), 209 states have call successors, (213) [2024-11-05 10:32:48,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1212 transitions. [2024-11-05 10:32:48,581 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1212 transitions. Word has length 26 [2024-11-05 10:32:48,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 10:32:48,583 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1212 transitions. [2024-11-05 10:32:48,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-05 10:32:48,583 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1212 transitions. [2024-11-05 10:32:48,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-05 10:32:48,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 10:32:48,584 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 10:32:48,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-05 10:32:48,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 10:32:48,785 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 10:32:48,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 10:32:48,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1415869157, now seen corresponding path program 1 times [2024-11-05 10:32:48,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 10:32:48,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137727088] [2024-11-05 10:32:48,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 10:32:48,786 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 10:32:48,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 10:32:48,787 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 10:32:48,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-05 10:32:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 10:32:51,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-05 10:32:51,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 10:32:54,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-05 10:32:54,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 10:32:56,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-05 10:32:56,656 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 10:32:56,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137727088] [2024-11-05 10:32:56,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2137727088] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 10:32:56,657 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 10:32:56,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-05 10:32:56,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249123423] [2024-11-05 10:32:56,657 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 10:32:56,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-05 10:32:56,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 10:32:56,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-05 10:32:56,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-05 10:32:56,658 INFO L87 Difference]: Start difference. First operand 922 states and 1212 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-05 10:32:57,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 10:32:57,109 INFO L93 Difference]: Finished difference Result 2723 states and 3595 transitions. [2024-11-05 10:32:57,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-05 10:32:57,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2024-11-05 10:32:57,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 10:32:57,119 INFO L225 Difference]: With dead ends: 2723 [2024-11-05 10:32:57,120 INFO L226 Difference]: Without dead ends: 1813 [2024-11-05 10:32:57,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-05 10:32:57,123 INFO L432 NwaCegarLoop]: 633 mSDtfsCounter, 590 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-05 10:32:57,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 1225 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-05 10:32:57,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2024-11-05 10:32:57,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1802. [2024-11-05 10:32:57,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1243 states have (on average 1.2333065164923571) internal successors, (1533), 1262 states have internal predecessors, (1533), 418 states have call successors, (418), 141 states have call predecessors, (418), 140 states have return successors, (424), 406 states have call predecessors, (424), 414 states have call successors, (424) [2024-11-05 10:32:57,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2375 transitions. [2024-11-05 10:32:57,196 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2375 transitions. Word has length 27 [2024-11-05 10:32:57,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 10:32:57,196 INFO L471 AbstractCegarLoop]: Abstraction has 1802 states and 2375 transitions. [2024-11-05 10:32:57,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-05 10:32:57,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2375 transitions. [2024-11-05 10:32:57,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-05 10:32:57,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 10:32:57,201 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 10:32:57,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-05 10:32:57,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 10:32:57,402 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 10:32:57,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 10:32:57,402 INFO L85 PathProgramCache]: Analyzing trace with hash -440434169, now seen corresponding path program 1 times [2024-11-05 10:32:57,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 10:32:57,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98202749] [2024-11-05 10:32:57,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 10:32:57,403 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 10:32:57,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 10:32:57,406 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 10:32:57,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-05 10:33:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 10:33:00,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-05 10:33:00,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 10:33:01,900 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-05 10:33:01,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 10:33:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-05 10:33:06,136 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 10:33:06,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98202749] [2024-11-05 10:33:06,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [98202749] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 10:33:06,137 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 10:33:06,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-05 10:33:06,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903152170] [2024-11-05 10:33:06,137 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 10:33:06,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-05 10:33:06,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 10:33:06,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-05 10:33:06,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-05 10:33:06,138 INFO L87 Difference]: Start difference. First operand 1802 states and 2375 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-05 10:33:11,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 10:33:11,411 INFO L93 Difference]: Finished difference Result 5212 states and 7293 transitions. [2024-11-05 10:33:11,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 10:33:11,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 76 [2024-11-05 10:33:11,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 10:33:11,430 INFO L225 Difference]: With dead ends: 5212 [2024-11-05 10:33:11,431 INFO L226 Difference]: Without dead ends: 3425 [2024-11-05 10:33:11,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-05 10:33:11,438 INFO L432 NwaCegarLoop]: 684 mSDtfsCounter, 403 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-05 10:33:11,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1859 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-05 10:33:11,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2024-11-05 10:33:11,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 3401. [2024-11-05 10:33:11,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3401 states, 2338 states have (on average 1.292557741659538) internal successors, (3022), 2389 states have internal predecessors, (3022), 922 states have call successors, (922), 141 states have call predecessors, (922), 140 states have return successors, (944), 894 states have call predecessors, (944), 918 states have call successors, (944) [2024-11-05 10:33:11,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3401 states to 3401 states and 4888 transitions. [2024-11-05 10:33:11,568 INFO L78 Accepts]: Start accepts. Automaton has 3401 states and 4888 transitions. Word has length 76 [2024-11-05 10:33:11,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 10:33:11,569 INFO L471 AbstractCegarLoop]: Abstraction has 3401 states and 4888 transitions. [2024-11-05 10:33:11,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-05 10:33:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3401 states and 4888 transitions. [2024-11-05 10:33:11,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-05 10:33:11,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 10:33:11,572 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 10:33:11,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Forceful destruction successful, exit code 0 [2024-11-05 10:33:11,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 10:33:11,773 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 10:33:11,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 10:33:11,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1281989802, now seen corresponding path program 1 times [2024-11-05 10:33:11,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 10:33:11,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95482631] [2024-11-05 10:33:11,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 10:33:11,774 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 10:33:11,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 10:33:11,776 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 10:33:11,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-05 10:33:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 10:33:14,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-05 10:33:14,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 10:33:15,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 10:33:15,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 10:33:19,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 10:33:19,937 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 10:33:19,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95482631] [2024-11-05 10:33:19,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [95482631] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 10:33:19,937 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 10:33:19,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-05 10:33:19,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668820434] [2024-11-05 10:33:19,938 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 10:33:19,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 10:33:19,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 10:33:19,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 10:33:19,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 10:33:19,939 INFO L87 Difference]: Start difference. First operand 3401 states and 4888 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-05 10:33:20,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 10:33:20,918 INFO L93 Difference]: Finished difference Result 6810 states and 9793 transitions. [2024-11-05 10:33:20,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 10:33:20,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2024-11-05 10:33:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 10:33:20,934 INFO L225 Difference]: With dead ends: 6810 [2024-11-05 10:33:20,934 INFO L226 Difference]: Without dead ends: 3425 [2024-11-05 10:33:20,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 10:33:20,945 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 0 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-05 10:33:20,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2443 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-05 10:33:20,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2024-11-05 10:33:21,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 3425. [2024-11-05 10:33:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3425 states, 2362 states have (on average 1.2895850973751057) internal successors, (3046), 2413 states have internal predecessors, (3046), 922 states have call successors, (922), 141 states have call predecessors, (922), 140 states have return successors, (944), 894 states have call predecessors, (944), 918 states have call successors, (944) [2024-11-05 10:33:21,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3425 states to 3425 states and 4912 transitions. [2024-11-05 10:33:21,083 INFO L78 Accepts]: Start accepts. Automaton has 3425 states and 4912 transitions. Word has length 78 [2024-11-05 10:33:21,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 10:33:21,083 INFO L471 AbstractCegarLoop]: Abstraction has 3425 states and 4912 transitions. [2024-11-05 10:33:21,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-05 10:33:21,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3425 states and 4912 transitions. [2024-11-05 10:33:21,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-05 10:33:21,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 10:33:21,087 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 10:33:21,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-05 10:33:21,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 10:33:21,288 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 10:33:21,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 10:33:21,288 INFO L85 PathProgramCache]: Analyzing trace with hash -21628062, now seen corresponding path program 1 times [2024-11-05 10:33:21,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 10:33:21,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469800581] [2024-11-05 10:33:21,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 10:33:21,289 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 10:33:21,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 10:33:21,290 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 10:33:21,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-05 10:33:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 10:33:24,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-05 10:33:24,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 10:33:28,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 10:33:28,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 10:33:37,129 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 10:33:37,129 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 10:33:37,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469800581] [2024-11-05 10:33:37,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [469800581] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 10:33:37,130 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 10:33:37,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2024-11-05 10:33:37,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659520898] [2024-11-05 10:33:37,130 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 10:33:37,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-05 10:33:37,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 10:33:37,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-05 10:33:37,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-05 10:33:37,131 INFO L87 Difference]: Start difference. First operand 3425 states and 4912 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12)