/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 FOX -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 12:23:23,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 12:23:23,523 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 12:23:23,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 12:23:23,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 12:23:23,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 12:23:23,558 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 12:23:23,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 12:23:23,559 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 12:23:23,559 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 12:23:23,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 12:23:23,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 12:23:23,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 12:23:23,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 12:23:23,565 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 12:23:23,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 12:23:23,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 12:23:23,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 12:23:23,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 12:23:23,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 12:23:23,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 12:23:23,569 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 12:23:23,569 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 12:23:23,569 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 12:23:23,570 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 12:23:23,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 12:23:23,570 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 12:23:23,570 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 12:23:23,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 12:23:23,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 12:23:23,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 12:23:23,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 12:23:23,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 12:23:23,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 12:23:23,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 12:23:23,572 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 12:23:23,573 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 12:23:23,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 12:23:23,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 12:23:23,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 12:23:23,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 12:23:23,575 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 12:23:23,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 12:23:23,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 12:23:23,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 12:23:23,862 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 12:23:23,862 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 12:23:23,864 INFO L431 ainManager$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 12:23:25,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 12:23:25,908 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 12:23:25,908 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 12:23:25,950 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b348b2e16/9b4df524140b4cfc963fae826618557e/FLAGee6b38af6 [2024-11-06 12:23:25,966 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b348b2e16/9b4df524140b4cfc963fae826618557e [2024-11-06 12:23:25,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 12:23:25,970 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 12:23:25,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 12:23:25,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 12:23:25,976 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 12:23:25,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 12:23:25" (1/1) ... [2024-11-06 12:23:25,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc96c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:25, skipping insertion in model container [2024-11-06 12:23:25,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 12:23:25" (1/1) ... [2024-11-06 12:23:26,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 12:23:27,104 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 12:23:27,112 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 12:23:27,112 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 12:23:27,112 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 12:23:27,113 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 12:23:27,113 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 12:23:27,113 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 12:23:27,114 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 12:23:27,141 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 12:23:27,353 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 12:23:27,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 12:23:27,420 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 12:23:27,570 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 12:23:27,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 12:23:27,691 INFO L204 MainTranslator]: Completed translation [2024-11-06 12:23:27,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27 WrapperNode [2024-11-06 12:23:27,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 12:23:27,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 12:23:27,695 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 12:23:27,695 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 12:23:27,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (1/1) ... [2024-11-06 12:23:27,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (1/1) ... [2024-11-06 12:23:27,839 INFO L138 Inliner]: procedures = 127, calls = 555, calls flagged for inlining = 30, calls inlined = 25, statements flattened = 1085 [2024-11-06 12:23:27,839 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 12:23:27,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 12:23:27,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 12:23:27,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 12:23:27,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (1/1) ... [2024-11-06 12:23:27,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (1/1) ... [2024-11-06 12:23:27,870 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (1/1) ... [2024-11-06 12:23:27,933 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 12:23:27,934 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (1/1) ... [2024-11-06 12:23:27,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (1/1) ... [2024-11-06 12:23:27,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (1/1) ... [2024-11-06 12:23:27,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (1/1) ... [2024-11-06 12:23:28,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (1/1) ... [2024-11-06 12:23:28,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (1/1) ... [2024-11-06 12:23:28,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 12:23:28,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 12:23:28,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 12:23:28,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 12:23:28,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (1/1) ... [2024-11-06 12:23:28,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 12:23:28,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:23:28,147 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 12:23:28,153 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 12:23:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-06 12:23:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-06 12:23:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-06 12:23:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-06 12:23:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-06 12:23:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-06 12:23:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-06 12:23:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-06 12:23:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-06 12:23:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-06 12:23:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-06 12:23:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-06 12:23:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-06 12:23:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-06 12:23:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-06 12:23:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-06 12:23:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-06 12:23:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-06 12:23:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-06 12:23:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-06 12:23:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-06 12:23:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-06 12:23:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-06 12:23:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-06 12:23:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-06 12:23:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-06 12:23:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-06 12:23:28,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-06 12:23:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-06 12:23:28,185 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-06 12:23:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2024-11-06 12:23:28,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2024-11-06 12:23:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-06 12:23:28,186 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-06 12:23:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-06 12:23:28,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-06 12:23:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-06 12:23:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-06 12:23:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-06 12:23:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-06 12:23:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-06 12:23:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-06 12:23:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-06 12:23:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#7 [2024-11-06 12:23:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#8 [2024-11-06 12:23:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#9 [2024-11-06 12:23:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#10 [2024-11-06 12:23:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#11 [2024-11-06 12:23:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#12 [2024-11-06 12:23:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-06 12:23:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-06 12:23:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#2 [2024-11-06 12:23:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#3 [2024-11-06 12:23:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#4 [2024-11-06 12:23:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#5 [2024-11-06 12:23:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#6 [2024-11-06 12:23:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#7 [2024-11-06 12:23:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#8 [2024-11-06 12:23:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#9 [2024-11-06 12:23:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#10 [2024-11-06 12:23:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#11 [2024-11-06 12:23:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#12 [2024-11-06 12:23:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-06 12:23:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-06 12:23:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-06 12:23:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-06 12:23:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-06 12:23:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-06 12:23:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#6 [2024-11-06 12:23:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#7 [2024-11-06 12:23:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#8 [2024-11-06 12:23:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#9 [2024-11-06 12:23:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#10 [2024-11-06 12:23:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#11 [2024-11-06 12:23:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#12 [2024-11-06 12:23:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-06 12:23:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-06 12:23:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-06 12:23:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-06 12:23:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-06 12:23:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#5 [2024-11-06 12:23:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#6 [2024-11-06 12:23:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#7 [2024-11-06 12:23:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#8 [2024-11-06 12:23:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#9 [2024-11-06 12:23:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#10 [2024-11-06 12:23:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#11 [2024-11-06 12:23:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#12 [2024-11-06 12:23:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-06 12:23:28,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-06 12:23:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 12:23:28,194 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 12:23:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-06 12:23:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 12:23:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2024-11-06 12:23:28,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2024-11-06 12:23:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-06 12:23:28,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-06 12:23:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 12:23:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-06 12:23:28,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-06 12:23:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-06 12:23:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-06 12:23:28,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-06 12:23:28,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-06 12:23:28,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-06 12:23:28,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-06 12:23:28,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-06 12:23:28,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-06 12:23:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-06 12:23:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-06 12:23:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-06 12:23:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 12:23:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 12:23:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 12:23:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 12:23:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-06 12:23:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-06 12:23:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-06 12:23:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-06 12:23:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-06 12:23:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-06 12:23:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-06 12:23:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-06 12:23:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-06 12:23:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-06 12:23:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2024-11-06 12:23:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2024-11-06 12:23:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 12:23:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 12:23:28,595 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 12:23:28,598 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 12:23:28,626 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-06 12:23:41,869 INFO L? ?]: Removed 200 outVars from TransFormulas that were not future-live. [2024-11-06 12:23:41,869 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 12:23:41,892 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 12:23:41,893 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-06 12:23:41,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 12:23:41 BoogieIcfgContainer [2024-11-06 12:23:41,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 12:23:41,896 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 12:23:41,896 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 12:23:41,900 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 12:23:41,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 12:23:25" (1/3) ... [2024-11-06 12:23:41,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be01ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 12:23:41, skipping insertion in model container [2024-11-06 12:23:41,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:23:27" (2/3) ... [2024-11-06 12:23:41,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be01ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 12:23:41, skipping insertion in model container [2024-11-06 12:23:41,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 12:23:41" (3/3) ... [2024-11-06 12:23:41,904 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 12:23:41,921 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 12:23:41,925 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 12:23:42,008 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 12:23:42,019 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;@1335acb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 12:23:42,019 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 12:23:42,026 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 12:23:42,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-06 12:23:42,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:23:42,044 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 12:23:42,045 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:23:42,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:23:42,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1979045930, now seen corresponding path program 1 times [2024-11-06 12:23:42,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:23:42,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221254306] [2024-11-06 12:23:42,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:23:42,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:23:42,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:23:42,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:23:42,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 12:24:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:24:12,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 3089 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:24:12,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:24:12,560 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 12:24:12,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:24:12,561 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:24:12,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221254306] [2024-11-06 12:24:12,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221254306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:24:12,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:24:12,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 12:24:12,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443133958] [2024-11-06 12:24:12,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:24:12,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:24:12,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:24:12,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:24:12,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:24:12,589 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 12:24:13,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:24:13,160 INFO L93 Difference]: Finished difference Result 492 states and 720 transitions. [2024-11-06 12:24:13,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:24:13,163 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 12:24:13,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:24:13,173 INFO L225 Difference]: With dead ends: 492 [2024-11-06 12:24:13,173 INFO L226 Difference]: Without dead ends: 283 [2024-11-06 12:24:13,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:24:13,181 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 199 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 12:24:13,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 478 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 12:24:13,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-06 12:24:13,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 269. [2024-11-06 12:24:13,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 221 states have (on average 1.420814479638009) internal successors, (314), 226 states have internal predecessors, (314), 34 states have call successors, (34), 14 states have call predecessors, (34), 13 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-06 12:24:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 376 transitions. [2024-11-06 12:24:13,252 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 376 transitions. Word has length 118 [2024-11-06 12:24:13,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:24:13,253 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 376 transitions. [2024-11-06 12:24:13,254 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 12:24:13,254 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 376 transitions. [2024-11-06 12:24:13,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-06 12:24:13,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:24:13,257 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] [2024-11-06 12:24:13,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-06 12:24:13,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:24:13,459 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:24:13,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:24:13,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1151509421, now seen corresponding path program 1 times [2024-11-06 12:24:13,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:24:13,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942245564] [2024-11-06 12:24:13,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:24:13,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:24:13,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:24:13,464 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:24:13,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 12:24:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:24:43,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 3078 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:24:43,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:24:50,808 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 12:24:50,809 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:24:50,809 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:24:50,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942245564] [2024-11-06 12:24:50,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942245564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:24:50,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:24:50,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:24:50,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883392023] [2024-11-06 12:24:50,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:24:50,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:24:50,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:24:50,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:24:50,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:24:50,814 INFO L87 Difference]: Start difference. First operand 269 states and 376 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-06 12:24:50,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:24:50,883 INFO L93 Difference]: Finished difference Result 271 states and 377 transitions. [2024-11-06 12:24:50,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:24:50,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 117 [2024-11-06 12:24:50,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:24:50,886 INFO L225 Difference]: With dead ends: 271 [2024-11-06 12:24:50,886 INFO L226 Difference]: Without dead ends: 268 [2024-11-06 12:24:50,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:24:50,888 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 181 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 12:24:50,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 229 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 12:24:50,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-06 12:24:50,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-06 12:24:50,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 221 states have (on average 1.416289592760181) internal successors, (313), 225 states have internal predecessors, (313), 33 states have call successors, (33), 14 states have call predecessors, (33), 13 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-06 12:24:50,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 374 transitions. [2024-11-06 12:24:50,928 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 374 transitions. Word has length 117 [2024-11-06 12:24:50,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:24:50,929 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 374 transitions. [2024-11-06 12:24:50,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-06 12:24:50,929 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 374 transitions. [2024-11-06 12:24:50,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-06 12:24:50,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:24:50,939 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 12:24:51,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 12:24:51,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:24:51,140 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:24:51,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:24:51,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1337028027, now seen corresponding path program 1 times [2024-11-06 12:24:51,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:24:51,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124008560] [2024-11-06 12:24:51,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:24:51,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:24:51,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:24:51,145 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:24:51,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process