/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-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-b75d321-m [2024-11-05 12:01:42,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 12:01:42,090 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 12:01:42,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 12:01:42,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 12:01:42,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 12:01:42,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 12:01:42,118 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 12:01:42,118 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 12:01:42,119 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 12:01:42,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 12:01:42,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 12:01:42,120 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 12:01:42,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 12:01:42,121 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 12:01:42,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 12:01:42,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 12:01:42,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 12:01:42,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 12:01:42,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 12:01:42,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 12:01:42,124 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 12:01:42,124 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 12:01:42,124 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 12:01:42,124 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 12:01:42,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 12:01:42,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 12:01:42,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 12:01:42,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 12:01:42,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 12:01:42,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 12:01:42,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 12:01:42,127 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 12:01:42,127 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 12:01:42,127 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 12:01:42,127 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 12:01:42,128 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 12:01:42,128 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 12:01:42,128 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 12:01:42,128 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 12:01:42,129 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 12:01:42,129 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-05 12:01:42,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 12:01:42,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 12:01:42,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 12:01:42,367 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 12:01:42,367 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 12:01:42,368 INFO L431 ainManager$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 [2024-11-05 12:01:43,763 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 12:01:44,171 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 12:01:44,172 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 [2024-11-05 12:01:44,211 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8614325c4/f589a1b85a5c47c98617752b30caec74/FLAGbcd2dbe33 [2024-11-05 12:01:44,225 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8614325c4/f589a1b85a5c47c98617752b30caec74 [2024-11-05 12:01:44,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 12:01:44,228 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 12:01:44,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 12:01:44,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 12:01:44,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 12:01:44,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:01:44" (1/1) ... [2024-11-05 12:01:44,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbbb8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:44, skipping insertion in model container [2024-11-05 12:01:44,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:01:44" (1/1) ... [2024-11-05 12:01:44,333 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 12:01:45,130 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 12:01:45,136 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 12:01:45,136 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 12:01:45,137 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 12:01:45,138 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 12:01:45,138 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 12:01:45,138 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 12:01:45,138 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 12:01:45,166 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] [2024-11-05 12:01:45,330 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 12:01:45,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 12:01:45,393 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 12:01:45,552 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] [2024-11-05 12:01:45,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 12:01:45,668 INFO L204 MainTranslator]: Completed translation [2024-11-05 12:01:45,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45 WrapperNode [2024-11-05 12:01:45,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 12:01:45,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 12:01:45,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 12:01:45,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 12:01:45,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (1/1) ... [2024-11-05 12:01:45,737 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (1/1) ... [2024-11-05 12:01:45,808 INFO L138 Inliner]: procedures = 127, calls = 555, calls flagged for inlining = 30, calls inlined = 25, statements flattened = 1085 [2024-11-05 12:01:45,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 12:01:45,809 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 12:01:45,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 12:01:45,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 12:01:45,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (1/1) ... [2024-11-05 12:01:45,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (1/1) ... [2024-11-05 12:01:45,832 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (1/1) ... [2024-11-05 12:01:45,906 INFO L175 MemorySlicer]: Split 409 memory accesses to 13 slices as follows [2, 188, 3, 21, 21, 21, 21, 21, 21, 21, 21, 45, 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, 2, 21, 21, 21, 21, 21, 21, 21, 21, 45, 1]. [2024-11-05 12:01:45,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (1/1) ... [2024-11-05 12:01:45,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (1/1) ... [2024-11-05 12:01:45,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (1/1) ... [2024-11-05 12:01:45,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (1/1) ... [2024-11-05 12:01:45,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (1/1) ... [2024-11-05 12:01:46,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (1/1) ... [2024-11-05 12:01:46,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 12:01:46,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 12:01:46,028 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 12:01:46,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 12:01:46,029 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (1/1) ... [2024-11-05 12:01:46,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 12:01:46,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 12:01:46,067 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 12:01:46,080 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 12:01:46,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-05 12:01:46,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-05 12:01:46,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-05 12:01:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-05 12:01:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-05 12:01:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-05 12:01:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-05 12:01:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-05 12:01:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-05 12:01:46,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-05 12:01:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-05 12:01:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-05 12:01:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-05 12:01:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-05 12:01:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-05 12:01:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-05 12:01:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-05 12:01:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-05 12:01:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-05 12:01:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-05 12:01:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-05 12:01:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-05 12:01:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-05 12:01:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-05 12:01:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-05 12:01:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-05 12:01:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-05 12:01:46,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-05 12:01:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-05 12:01:46,108 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-05 12:01:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2024-11-05 12:01:46,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2024-11-05 12:01:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-05 12:01:46,109 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-05 12:01:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-05 12:01:46,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-05 12:01:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-05 12:01:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-05 12:01:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-05 12:01:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-05 12:01:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-05 12:01:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-05 12:01:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-05 12:01:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#7 [2024-11-05 12:01:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#8 [2024-11-05 12:01:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#9 [2024-11-05 12:01:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#10 [2024-11-05 12:01:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#11 [2024-11-05 12:01:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#12 [2024-11-05 12:01:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-05 12:01:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-05 12:01:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#2 [2024-11-05 12:01:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#3 [2024-11-05 12:01:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#4 [2024-11-05 12:01:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#5 [2024-11-05 12:01:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#6 [2024-11-05 12:01:46,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#7 [2024-11-05 12:01:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#8 [2024-11-05 12:01:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#9 [2024-11-05 12:01:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#10 [2024-11-05 12:01:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#11 [2024-11-05 12:01:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#12 [2024-11-05 12:01:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-05 12:01:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-05 12:01:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-05 12:01:46,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-05 12:01:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-05 12:01:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-05 12:01:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#6 [2024-11-05 12:01:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#7 [2024-11-05 12:01:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#8 [2024-11-05 12:01:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#9 [2024-11-05 12:01:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#10 [2024-11-05 12:01:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#11 [2024-11-05 12:01:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#12 [2024-11-05 12:01:46,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-05 12:01:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-05 12:01:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-05 12:01:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-05 12:01:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-05 12:01:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#5 [2024-11-05 12:01:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#6 [2024-11-05 12:01:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#7 [2024-11-05 12:01:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#8 [2024-11-05 12:01:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#9 [2024-11-05 12:01:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#10 [2024-11-05 12:01:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#11 [2024-11-05 12:01:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#12 [2024-11-05 12:01:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-05 12:01:46,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-05 12:01:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 12:01:46,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 12:01:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-05 12:01:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 12:01:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2024-11-05 12:01:46,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2024-11-05 12:01:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-05 12:01:46,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-05 12:01:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-05 12:01:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-05 12:01:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-05 12:01:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-05 12:01:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-05 12:01:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-05 12:01:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-05 12:01:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-05 12:01:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-05 12:01:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-05 12:01:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-05 12:01:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-05 12:01:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-05 12:01:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-05 12:01:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-05 12:01:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 12:01:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-05 12:01:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-05 12:01:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-05 12:01:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-05 12:01:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-05 12:01:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-05 12:01:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-05 12:01:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-05 12:01:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-05 12:01:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-05 12:01:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-05 12:01:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-05 12:01:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2024-11-05 12:01:46,119 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2024-11-05 12:01:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 12:01:46,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 12:01:46,481 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 12:01:46,483 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 12:01:46,504 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-05 12:02:00,871 INFO L? ?]: Removed 200 outVars from TransFormulas that were not future-live. [2024-11-05 12:02:00,871 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 12:02:00,892 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 12:02:00,893 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-05 12:02:00,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:02:00 BoogieIcfgContainer [2024-11-05 12:02:00,893 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 12:02:00,895 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 12:02:00,895 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 12:02:00,899 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 12:02:00,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 12:01:44" (1/3) ... [2024-11-05 12:02:00,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efb953f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:02:00, skipping insertion in model container [2024-11-05 12:02:00,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:45" (2/3) ... [2024-11-05 12:02:00,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efb953f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:02:00, skipping insertion in model container [2024-11-05 12:02:00,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:02:00" (3/3) ... [2024-11-05 12:02:00,903 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2024-11-05 12:02:00,914 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 12:02:00,915 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 12:02:00,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 12:02:01,003 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;@4cd199d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 12:02:01,003 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 12:02:01,008 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) [2024-11-05 12:02:01,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-05 12:02:01,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 12:02:01,027 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] [2024-11-05 12:02:01,028 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 12:02:01,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 12:02:01,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1979045930, now seen corresponding path program 1 times [2024-11-05 12:02:01,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 12:02:01,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751425498] [2024-11-05 12:02:01,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 12:02:01,045 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 12:02:01,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 12:02:01,048 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 12:02:01,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-05 12:02:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 12:02:29,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 3089 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-05 12:02:29,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 12:02:29,786 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-05 12:02:29,787 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 12:02:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-05 12:02:34,535 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 12:02:34,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751425498] [2024-11-05 12:02:34,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1751425498] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 12:02:34,537 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 12:02:34,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-05 12:02:34,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102405282] [2024-11-05 12:02:34,539 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 12:02:34,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-05 12:02:34,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 12:02:34,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-05 12:02:34,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-05 12:02:34,569 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 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-11-05 12:02:34,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 12:02:34,902 INFO L93 Difference]: Finished difference Result 369 states and 536 transitions. [2024-11-05 12:02:34,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 12:02:34,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 118 [2024-11-05 12:02:34,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 12:02:34,916 INFO L225 Difference]: With dead ends: 369 [2024-11-05 12:02:34,916 INFO L226 Difference]: Without dead ends: 172 [2024-11-05 12:02:34,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 232 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 12:02:34,922 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 0 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-05 12:02:34,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 756 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-05 12:02:34,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-05 12:02:34,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-05 12:02:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 138 states have (on average 1.3768115942028984) internal successors, (190), 143 states have internal predecessors, (190), 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) [2024-11-05 12:02:34,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 234 transitions. [2024-11-05 12:02:34,977 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 234 transitions. Word has length 118 [2024-11-05 12:02:34,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 12:02:34,978 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 234 transitions. [2024-11-05 12:02:34,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-11-05 12:02:34,979 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 234 transitions. [2024-11-05 12:02:34,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-05 12:02:34,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 12:02:34,984 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-11-05 12:02:35,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-05 12:02:35,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 12:02:35,185 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 12:02:35,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 12:02:35,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1574943702, now seen corresponding path program 1 times [2024-11-05 12:02:35,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 12:02:35,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825151443] [2024-11-05 12:02:35,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 12:02:35,187 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 12:02:35,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 12:02:35,189 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 12:02:35,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-05 12:03:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 12:03:02,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 3111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-05 12:03:02,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 12:03:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-05 12:03:04,178 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 12:03:10,141 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-05 12:03:10,142 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 12:03:10,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825151443] [2024-11-05 12:03:10,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1825151443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 12:03:10,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 12:03:10,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-05 12:03:10,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863765747] [2024-11-05 12:03:10,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 12:03:10,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 12:03:10,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 12:03:10,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 12:03:10,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-05 12:03:10,146 INFO L87 Difference]: Start difference. First operand 172 states and 234 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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) [2024-11-05 12:03:10,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 12:03:10,993 INFO L93 Difference]: Finished difference Result 328 states and 447 transitions. [2024-11-05 12:03:10,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-05 12:03:10,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 120 [2024-11-05 12:03:10,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 12:03:10,998 INFO L225 Difference]: With dead ends: 328 [2024-11-05 12:03:10,998 INFO L226 Difference]: Without dead ends: 174 [2024-11-05 12:03:10,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-05 12:03:11,000 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-05 12:03:11,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 915 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-05 12:03:11,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-05 12:03:11,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-05 12:03:11,012 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) [2024-11-05 12:03:11,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 236 transitions. [2024-11-05 12:03:11,016 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 236 transitions. Word has length 120 [2024-11-05 12:03:11,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 12:03:11,017 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 236 transitions. [2024-11-05 12:03:11,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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) [2024-11-05 12:03:11,017 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 236 transitions. [2024-11-05 12:03:11,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-05 12:03:11,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 12:03:11,024 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] [2024-11-05 12:03:11,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0 [2024-11-05 12:03:11,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 12:03:11,225 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 12:03:11,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 12:03:11,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1834987562, now seen corresponding path program 2 times [2024-11-05 12:03:11,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 12:03:11,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954285979] [2024-11-05 12:03:11,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 12:03:11,226 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 12:03:11,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 12:03:11,228 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 12:03:11,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process