/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy WOLF -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 03:25:02,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 03:25:02,377 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-06 03:25:02,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 03:25:02,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 03:25:02,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 03:25:02,409 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 03:25:02,410 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 03:25:02,410 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 03:25:02,411 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 03:25:02,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 03:25:02,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 03:25:02,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 03:25:02,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 03:25:02,412 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 03:25:02,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 03:25:02,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 03:25:02,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 03:25:02,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 03:25:02,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 03:25:02,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 03:25:02,417 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 03:25:02,418 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 03:25:02,418 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 03:25:02,418 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 03:25:02,418 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 03:25:02,418 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 03:25:02,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 03:25:02,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 03:25:02,419 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 03:25:02,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 03:25:02,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 03:25:02,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 03:25:02,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 03:25:02,420 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 03:25:02,420 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 03:25:02,420 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 03:25:02,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 03:25:02,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 03:25:02,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 03:25:02,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 03:25:02,424 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF [2024-11-06 03:25:02,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 03:25:02,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 03:25:02,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 03:25:02,617 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 03:25:02,617 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 03:25:02,618 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2024-11-06 03:25:04,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 03:25:04,320 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 03:25:04,320 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2024-11-06 03:25:04,352 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29baefac6/82b56980aa454219af2a02d7f19b30f7/FLAGb85c49864 [2024-11-06 03:25:04,556 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29baefac6/82b56980aa454219af2a02d7f19b30f7 [2024-11-06 03:25:04,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 03:25:04,563 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 03:25:04,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 03:25:04,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 03:25:04,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 03:25:04,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:25:04" (1/1) ... [2024-11-06 03:25:04,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de43f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:04, skipping insertion in model container [2024-11-06 03:25:04,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:25:04" (1/1) ... [2024-11-06 03:25:04,646 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 03:25:05,277 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 03:25:05,280 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 03:25:05,280 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 03:25:05,281 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 03:25:05,282 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 03:25:05,282 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 03:25:05,282 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 03:25:05,283 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 03:25:05,307 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2024-11-06 03:25:05,471 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 03:25:05,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 03:25:05,519 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 03:25:05,665 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2024-11-06 03:25:05,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 03:25:05,754 INFO L204 MainTranslator]: Completed translation [2024-11-06 03:25:05,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05 WrapperNode [2024-11-06 03:25:05,755 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 03:25:05,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 03:25:05,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 03:25:05,757 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 03:25:05,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (1/1) ... [2024-11-06 03:25:05,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (1/1) ... [2024-11-06 03:25:05,857 INFO L138 Inliner]: procedures = 127, calls = 555, calls flagged for inlining = 30, calls inlined = 25, statements flattened = 1085 [2024-11-06 03:25:05,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 03:25:05,858 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 03:25:05,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 03:25:05,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 03:25:05,868 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (1/1) ... [2024-11-06 03:25:05,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (1/1) ... [2024-11-06 03:25:05,881 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (1/1) ... [2024-11-06 03:25:05,912 INFO L175 MemorySlicer]: Split 409 memory accesses to 13 slices as follows [2, 188, 21, 21, 21, 21, 21, 21, 21, 21, 45, 3, 3]. 46 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 399 writes are split as follows [0, 183, 21, 21, 21, 21, 21, 21, 21, 21, 45, 1, 2]. [2024-11-06 03:25:05,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (1/1) ... [2024-11-06 03:25:05,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (1/1) ... [2024-11-06 03:25:05,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (1/1) ... [2024-11-06 03:25:05,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (1/1) ... [2024-11-06 03:25:05,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (1/1) ... [2024-11-06 03:25:05,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (1/1) ... [2024-11-06 03:25:05,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 03:25:05,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 03:25:05,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 03:25:05,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 03:25:05,991 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (1/1) ... [2024-11-06 03:25:05,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 03:25:06,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 03:25:06,018 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) [2024-11-06 03:25:06,020 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 [2024-11-06 03:25:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-06 03:25:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-06 03:25:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-06 03:25:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-06 03:25:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-06 03:25:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-06 03:25:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-06 03:25:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-06 03:25:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-06 03:25:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-06 03:25:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-06 03:25:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-06 03:25:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-06 03:25:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-06 03:25:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-06 03:25:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-06 03:25:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-06 03:25:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-06 03:25:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-06 03:25:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-06 03:25:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-06 03:25:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-06 03:25:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-06 03:25:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-06 03:25:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-06 03:25:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-06 03:25:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-06 03:25:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-06 03:25:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-06 03:25:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-06 03:25:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2024-11-06 03:25:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2024-11-06 03:25:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-06 03:25:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-06 03:25:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-06 03:25:06,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#7 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#8 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#9 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#10 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#11 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#12 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-06 03:25:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-06 03:25:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#2 [2024-11-06 03:25:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#3 [2024-11-06 03:25:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#4 [2024-11-06 03:25:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#5 [2024-11-06 03:25:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#6 [2024-11-06 03:25:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#7 [2024-11-06 03:25:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#8 [2024-11-06 03:25:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#9 [2024-11-06 03:25:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#10 [2024-11-06 03:25:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#11 [2024-11-06 03:25:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#12 [2024-11-06 03:25:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-06 03:25:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-06 03:25:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-06 03:25:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-06 03:25:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-06 03:25:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-06 03:25:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#6 [2024-11-06 03:25:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#7 [2024-11-06 03:25:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#8 [2024-11-06 03:25:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#9 [2024-11-06 03:25:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#10 [2024-11-06 03:25:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#11 [2024-11-06 03:25:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#12 [2024-11-06 03:25:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-06 03:25:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-06 03:25:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-06 03:25:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-06 03:25:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-06 03:25:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#5 [2024-11-06 03:25:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#6 [2024-11-06 03:25:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#7 [2024-11-06 03:25:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#8 [2024-11-06 03:25:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#9 [2024-11-06 03:25:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#10 [2024-11-06 03:25:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#11 [2024-11-06 03:25:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#12 [2024-11-06 03:25:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-06 03:25:06,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-06 03:25:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 03:25:06,049 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 03:25:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-06 03:25:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 03:25:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2024-11-06 03:25:06,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-06 03:25:06,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-06 03:25:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-06 03:25:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-06 03:25:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2024-11-06 03:25:06,052 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2024-11-06 03:25:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 03:25:06,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 03:25:06,303 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 03:25:06,304 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 03:25:06,323 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-06 03:25:17,567 INFO L? ?]: Removed 200 outVars from TransFormulas that were not future-live. [2024-11-06 03:25:17,567 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 03:25:17,578 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 03:25:17,578 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-06 03:25:17,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:25:17 BoogieIcfgContainer [2024-11-06 03:25:17,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 03:25:17,580 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 03:25:17,580 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 03:25:17,582 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 03:25:17,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 03:25:04" (1/3) ... [2024-11-06 03:25:17,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3983dbad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:25:17, skipping insertion in model container [2024-11-06 03:25:17,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:25:05" (2/3) ... [2024-11-06 03:25:17,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3983dbad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:25:17, skipping insertion in model container [2024-11-06 03:25:17,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:25:17" (3/3) ... [2024-11-06 03:25:17,584 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2024-11-06 03:25:17,595 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 03:25:17,595 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 03:25:17,666 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 03:25:17,671 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;@6966c0d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 03:25:17,671 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 03:25:17,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 141 states have (on average 1.4539007092198581) internal successors, (205), 157 states have internal predecessors, (205), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-06 03:25:17,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-06 03:25:17,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 03:25:17,689 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 03:25:17,690 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 03:25:17,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 03:25:17,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1979045930, now seen corresponding path program 1 times [2024-11-06 03:25:17,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 03:25:17,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736991514] [2024-11-06 03:25:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 03:25:17,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 03:25:17,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 03:25:17,712 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 03:25:17,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-06 03:25:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 03:25:49,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 3089 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-06 03:25:49,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 03:25:50,101 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-06 03:25:50,101 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 03:25:50,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 03:25:50,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736991514] [2024-11-06 03:25:50,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736991514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 03:25:50,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 03:25:50,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 03:25:50,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674590625] [2024-11-06 03:25:50,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 03:25:50,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 03:25:50,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 03:25:50,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 03:25:50,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 03:25:50,166 INFO L87 Difference]: Start difference. First operand has 186 states, 141 states have (on average 1.4539007092198581) internal successors, (205), 157 states have internal predecessors, (205), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-06 03:25:50,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 03:25:50,365 INFO L93 Difference]: Finished difference Result 368 states and 534 transitions. [2024-11-06 03:25:50,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 03:25:50,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 118 [2024-11-06 03:25:50,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 03:25:50,375 INFO L225 Difference]: With dead ends: 368 [2024-11-06 03:25:50,375 INFO L226 Difference]: Without dead ends: 171 [2024-11-06 03:25:50,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 03:25:50,380 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 0 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 03:25:50,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 505 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 03:25:50,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-06 03:25:50,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-11-06 03:25:50,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 137 states have (on average 1.3795620437956204) internal successors, (189), 142 states have internal predecessors, (189), 25 states have call successors, (25), 9 states have call predecessors, (25), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-06 03:25:50,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 233 transitions. [2024-11-06 03:25:50,415 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 233 transitions. Word has length 118 [2024-11-06 03:25:50,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 03:25:50,416 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 233 transitions. [2024-11-06 03:25:50,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-06 03:25:50,417 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 233 transitions. [2024-11-06 03:25:50,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-06 03:25:50,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 03:25:50,420 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 03:25:50,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-06 03:25:50,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 03:25:50,625 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 03:25:50,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 03:25:50,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1733766026, now seen corresponding path program 1 times [2024-11-06 03:25:50,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 03:25:50,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995767674] [2024-11-06 03:25:50,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 03:25:50,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 03:25:50,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 03:25:50,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 03:25:50,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-06 03:26:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 03:26:23,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 3100 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-06 03:26:23,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 03:26:23,781 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-06 03:26:23,781 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 03:26:27,895 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-06 03:26:27,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 03:26:27,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995767674] [2024-11-06 03:26:27,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995767674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 03:26:27,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 03:26:27,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-06 03:26:27,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615135350] [2024-11-06 03:26:27,896 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 03:26:27,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 03:26:27,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 03:26:27,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 03:26:27,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-06 03:26:27,898 INFO L87 Difference]: Start difference. First operand 171 states and 233 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-06 03:26:28,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 03:26:28,725 INFO L93 Difference]: Finished difference Result 328 states and 448 transitions. [2024-11-06 03:26:28,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 03:26:28,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 119 [2024-11-06 03:26:28,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 03:26:28,728 INFO L225 Difference]: With dead ends: 328 [2024-11-06 03:26:28,728 INFO L226 Difference]: Without dead ends: 174 [2024-11-06 03:26:28,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-06 03:26:28,729 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 03:26:28,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1143 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 03:26:28,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-06 03:26:28,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-06 03:26:28,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 140 states have (on average 1.3714285714285714) internal successors, (192), 145 states have internal predecessors, (192), 25 states have call successors, (25), 9 states have call predecessors, (25), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-06 03:26:28,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 236 transitions. [2024-11-06 03:26:28,740 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 236 transitions. Word has length 119 [2024-11-06 03:26:28,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 03:26:28,740 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 236 transitions. [2024-11-06 03:26:28,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-06 03:26:28,741 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 236 transitions. [2024-11-06 03:26:28,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-06 03:26:28,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 03:26:28,742 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 03:26:28,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-06 03:26:28,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 03:26:28,943 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 03:26:28,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 03:26:28,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1834987562, now seen corresponding path program 2 times [2024-11-06 03:26:28,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 03:26:28,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339413306] [2024-11-06 03:26:28,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 03:26:28,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 03:26:28,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 03:26:28,949 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 03:26:28,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process