./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i --full-output --preprocessor.use.memory.slicer true --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fba957c5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-fba957c-m [2023-11-23 10:08:37,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 10:08:37,425 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 10:08:37,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 10:08:37,429 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 10:08:37,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 10:08:37,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 10:08:37,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 10:08:37,449 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 10:08:37,450 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 10:08:37,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 10:08:37,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 10:08:37,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 10:08:37,454 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 10:08:37,454 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 10:08:37,455 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 10:08:37,455 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 10:08:37,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 10:08:37,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 10:08:37,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 10:08:37,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 10:08:37,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 10:08:37,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 10:08:37,457 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 10:08:37,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 10:08:37,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 10:08:37,458 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 10:08:37,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 10:08:37,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 10:08:37,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 10:08:37,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 10:08:37,460 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 10:08:37,460 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 10:08:37,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 10:08:37,461 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 10:08:37,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 10:08:37,461 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 10:08:37,461 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 10:08:37,461 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 10:08:37,462 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3555fedd9f92961bad45780711b37c7eb42c00277e0bac6769cfc03eaec14a8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 10:08:37,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 10:08:37,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 10:08:37,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 10:08:37,676 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 10:08:37,676 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 10:08:37,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2023-11-23 10:08:38,762 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 10:08:39,190 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 10:08:39,191 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2023-11-23 10:08:39,218 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4bc05ce1/36331d9bd244438ba8dd880cf5c8e61c/FLAGc36feb931 [2023-11-23 10:08:39,229 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4bc05ce1/36331d9bd244438ba8dd880cf5c8e61c [2023-11-23 10:08:39,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 10:08:39,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 10:08:39,238 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 10:08:39,238 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 10:08:39,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 10:08:39,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:08:39" (1/1) ... [2023-11-23 10:08:39,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e09617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:39, skipping insertion in model container [2023-11-23 10:08:39,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:08:39" (1/1) ... [2023-11-23 10:08:39,351 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 10:08:40,042 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2023-11-23 10:08:40,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 10:08:40,457 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 10:08:40,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [2776-2777] [2023-11-23 10:08:40,508 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [2811] [2023-11-23 10:08:40,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2814] [2023-11-23 10:08:40,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2817] [2023-11-23 10:08:40,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2820] [2023-11-23 10:08:40,520 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2023-11-23 10:08:40,547 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)ep->ep_list.next) [3893] [2023-11-23 10:08:40,548 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)ep->ep_list.next) [3915] [2023-11-23 10:08:40,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 10:08:40,681 WARN L675 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:08:40,681 WARN L675 CHandler]: The function kmem_cache_alloc_notrace is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:08:40,681 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:08:40,687 INFO L206 MainTranslator]: Completed translation [2023-11-23 10:08:40,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40 WrapperNode [2023-11-23 10:08:40,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 10:08:40,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 10:08:40,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 10:08:40,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 10:08:40,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (1/1) ... [2023-11-23 10:08:40,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (1/1) ... [2023-11-23 10:08:40,871 INFO L138 Inliner]: procedures = 203, calls = 1322, calls flagged for inlining = 90, calls inlined = 90, statements flattened = 3777 [2023-11-23 10:08:40,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 10:08:40,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 10:08:40,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 10:08:40,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 10:08:40,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (1/1) ... [2023-11-23 10:08:40,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (1/1) ... [2023-11-23 10:08:40,897 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (1/1) ... [2023-11-23 10:08:41,348 INFO L175 MemorySlicer]: Split 656 memory accesses to 17 slices as follows [2, 15, 6, 12, 25, 0, 19, 1, 3, 2, 2, 0, 5, 13, 21, 0, 530]. 81 percent of accesses are in the largest equivalence class. The 189 initializations are split as follows [2, 0, 1, 12, 25, 0, 8, 0, 0, 0, 0, 0, 2, 8, 21, 0, 110]. The 207 writes are split as follows [0, 12, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 194]. [2023-11-23 10:08:41,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (1/1) ... [2023-11-23 10:08:41,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (1/1) ... [2023-11-23 10:08:41,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (1/1) ... [2023-11-23 10:08:41,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (1/1) ... [2023-11-23 10:08:41,468 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (1/1) ... [2023-11-23 10:08:41,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (1/1) ... [2023-11-23 10:08:41,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 10:08:41,515 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 10:08:41,515 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 10:08:41,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 10:08:41,516 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (1/1) ... [2023-11-23 10:08:41,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 10:08:41,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:08:41,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 10:08:41,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 10:08:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2023-11-23 10:08:41,598 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2023-11-23 10:08:41,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2023-11-23 10:08:41,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2023-11-23 10:08:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-23 10:08:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-23 10:08:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-23 10:08:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-23 10:08:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-23 10:08:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-23 10:08:41,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-23 10:08:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-23 10:08:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-23 10:08:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-23 10:08:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-23 10:08:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-23 10:08:41,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-23 10:08:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-23 10:08:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-23 10:08:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2023-11-23 10:08:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2023-11-23 10:08:41,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-23 10:08:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-23 10:08:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-23 10:08:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-23 10:08:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-23 10:08:41,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-23 10:08:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-23 10:08:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-23 10:08:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-23 10:08:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-23 10:08:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-23 10:08:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-23 10:08:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-23 10:08:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-23 10:08:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-23 10:08:41,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2023-11-23 10:08:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2023-11-23 10:08:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 10:08:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 10:08:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2023-11-23 10:08:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2023-11-23 10:08:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2023-11-23 10:08:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2023-11-23 10:08:41,604 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2023-11-23 10:08:41,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2023-11-23 10:08:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 10:08:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 10:08:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 10:08:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 10:08:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2023-11-23 10:08:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2023-11-23 10:08:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2023-11-23 10:08:41,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2023-11-23 10:08:41,606 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-23 10:08:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-23 10:08:41,607 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2023-11-23 10:08:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2023-11-23 10:08:41,607 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 10:08:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 10:08:41,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 10:08:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 10:08:41,608 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2023-11-23 10:08:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2023-11-23 10:08:41,608 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 10:08:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 10:08:41,609 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 10:08:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 10:08:41,609 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-11-23 10:08:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-11-23 10:08:41,609 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2023-11-23 10:08:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2023-11-23 10:08:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 10:08:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 10:08:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 10:08:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 10:08:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 10:08:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 10:08:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 10:08:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 10:08:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 10:08:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 10:08:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 10:08:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 10:08:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-23 10:08:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-23 10:08:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-23 10:08:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-23 10:08:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-23 10:08:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-23 10:08:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-23 10:08:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-23 10:08:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2023-11-23 10:08:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2023-11-23 10:08:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2023-11-23 10:08:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2023-11-23 10:08:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 10:08:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 10:08:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 10:08:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 10:08:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-23 10:08:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-23 10:08:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 10:08:41,614 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 10:08:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 10:08:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 10:08:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 10:08:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 10:08:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 10:08:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 10:08:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 10:08:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 10:08:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 10:08:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-23 10:08:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-23 10:08:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-23 10:08:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-23 10:08:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-23 10:08:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-23 10:08:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-23 10:08:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-23 10:08:41,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-23 10:08:41,617 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2023-11-23 10:08:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2023-11-23 10:08:41,617 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 10:08:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 10:08:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 10:08:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 10:08:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 10:08:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 10:08:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-23 10:08:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-23 10:08:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2023-11-23 10:08:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2023-11-23 10:08:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 10:08:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 10:08:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 10:08:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 10:08:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2023-11-23 10:08:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2023-11-23 10:08:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 10:08:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 10:08:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-23 10:08:41,623 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-23 10:08:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-23 10:08:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-23 10:08:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-23 10:08:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-23 10:08:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-23 10:08:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-23 10:08:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-23 10:08:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-23 10:08:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-23 10:08:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-23 10:08:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-23 10:08:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-23 10:08:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-23 10:08:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-23 10:08:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-23 10:08:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2023-11-23 10:08:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2023-11-23 10:08:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 10:08:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 10:08:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-23 10:08:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-23 10:08:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-23 10:08:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-23 10:08:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-23 10:08:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-23 10:08:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-23 10:08:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-23 10:08:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-23 10:08:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-23 10:08:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-23 10:08:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-23 10:08:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-23 10:08:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-23 10:08:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-23 10:08:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-23 10:08:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-23 10:08:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-23 10:08:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-23 10:08:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-23 10:08:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-23 10:08:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2023-11-23 10:08:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2023-11-23 10:08:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 10:08:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 10:08:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 10:08:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 10:08:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 10:08:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 10:08:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 10:08:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 10:08:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 10:08:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 10:08:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 10:08:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-23 10:08:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-23 10:08:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-23 10:08:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-23 10:08:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-23 10:08:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-23 10:08:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2023-11-23 10:08:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2023-11-23 10:08:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-23 10:08:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-23 10:08:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-23 10:08:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-23 10:08:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-23 10:08:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-23 10:08:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-23 10:08:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-23 10:08:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-23 10:08:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-23 10:08:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-23 10:08:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2023-11-23 10:08:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2023-11-23 10:08:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2023-11-23 10:08:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2023-11-23 10:08:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#15 [2023-11-23 10:08:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#16 [2023-11-23 10:08:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-23 10:08:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-23 10:08:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-23 10:08:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-23 10:08:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-23 10:08:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-23 10:08:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-23 10:08:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-23 10:08:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-23 10:08:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-23 10:08:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-23 10:08:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2023-11-23 10:08:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2023-11-23 10:08:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2023-11-23 10:08:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2023-11-23 10:08:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#15 [2023-11-23 10:08:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#16 [2023-11-23 10:08:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2023-11-23 10:08:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2023-11-23 10:08:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2023-11-23 10:08:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2023-11-23 10:08:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 10:08:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 10:08:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 10:08:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 10:08:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 10:08:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 10:08:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 10:08:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 10:08:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 10:08:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 10:08:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 10:08:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-23 10:08:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-23 10:08:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-23 10:08:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-23 10:08:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-23 10:08:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-23 10:08:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2023-11-23 10:08:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2023-11-23 10:08:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2023-11-23 10:08:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2023-11-23 10:08:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2023-11-23 10:08:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2023-11-23 10:08:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 10:08:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 10:08:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2023-11-23 10:08:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2023-11-23 10:08:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 10:08:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-11-23 10:08:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2023-11-23 10:08:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2023-11-23 10:08:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2023-11-23 10:08:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2023-11-23 10:08:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2023-11-23 10:08:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-23 10:08:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-23 10:08:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 10:08:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 10:08:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 10:08:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 10:08:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 10:08:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 10:08:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 10:08:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 10:08:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 10:08:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 10:08:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-23 10:08:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-23 10:08:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-23 10:08:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-23 10:08:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-23 10:08:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-23 10:08:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-23 10:08:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-23 10:08:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 10:08:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2023-11-23 10:08:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2023-11-23 10:08:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2023-11-23 10:08:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2023-11-23 10:08:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2023-11-23 10:08:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2023-11-23 10:08:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 10:08:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 10:08:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-23 10:08:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-23 10:08:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2023-11-23 10:08:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2023-11-23 10:08:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-11-23 10:08:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-11-23 10:08:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 10:08:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 10:08:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2023-11-23 10:08:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2023-11-23 10:08:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2023-11-23 10:08:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2023-11-23 10:08:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 10:08:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 10:08:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2023-11-23 10:08:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2023-11-23 10:08:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-23 10:08:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-23 10:08:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2023-11-23 10:08:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2023-11-23 10:08:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 10:08:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 10:08:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 10:08:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 10:08:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 10:08:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 10:08:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 10:08:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 10:08:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 10:08:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 10:08:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 10:08:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-23 10:08:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-23 10:08:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-23 10:08:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-23 10:08:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-23 10:08:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-23 10:08:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-23 10:08:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-23 10:08:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 10:08:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 10:08:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 10:08:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 10:08:42,179 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 10:08:42,184 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 10:08:42,566 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 10:08:47,335 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 10:08:47,472 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 10:08:47,472 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 10:08:47,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:08:47 BoogieIcfgContainer [2023-11-23 10:08:47,473 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 10:08:47,474 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 10:08:47,475 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 10:08:47,477 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 10:08:47,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:08:39" (1/3) ... [2023-11-23 10:08:47,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301c1752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:08:47, skipping insertion in model container [2023-11-23 10:08:47,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:40" (2/3) ... [2023-11-23 10:08:47,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301c1752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:08:47, skipping insertion in model container [2023-11-23 10:08:47,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:08:47" (3/3) ... [2023-11-23 10:08:47,479 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2023-11-23 10:08:47,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 10:08:47,492 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 10:08:47,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 10:08:47,628 INFO L357 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, mHoare=true, 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;@7950995, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 10:08:47,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 10:08:47,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 1273 states, 839 states have (on average 1.4576877234803338) internal successors, (1223), 882 states have internal predecessors, (1223), 364 states have call successors, (364), 69 states have call predecessors, (364), 68 states have return successors, (360), 357 states have call predecessors, (360), 360 states have call successors, (360) [2023-11-23 10:08:47,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 10:08:47,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:08:47,654 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 10:08:47,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:08:47,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:08:47,661 INFO L85 PathProgramCache]: Analyzing trace with hash -628238892, now seen corresponding path program 1 times [2023-11-23 10:08:47,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:08:47,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475086240] [2023-11-23 10:08:47,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:08:47,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:08:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:49,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:08:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:49,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:08:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:49,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:08:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:49,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:08:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:49,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:08:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:49,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:08:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:49,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 10:08:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:49,491 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 10:08:49,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:08:49,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475086240] [2023-11-23 10:08:49,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475086240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:08:49,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:08:49,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 10:08:49,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303931136] [2023-11-23 10:08:49,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:08:49,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 10:08:49,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:08:49,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 10:08:49,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 10:08:49,531 INFO L87 Difference]: Start difference. First operand has 1273 states, 839 states have (on average 1.4576877234803338) internal successors, (1223), 882 states have internal predecessors, (1223), 364 states have call successors, (364), 69 states have call predecessors, (364), 68 states have return successors, (360), 357 states have call predecessors, (360), 360 states have call successors, (360) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 10:08:51,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:08:53,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:08:55,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:09:04,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:09:04,365 INFO L93 Difference]: Finished difference Result 3974 states and 6239 transitions. [2023-11-23 10:09:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 10:09:04,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2023-11-23 10:09:04,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:09:04,393 INFO L225 Difference]: With dead ends: 3974 [2023-11-23 10:09:04,393 INFO L226 Difference]: Without dead ends: 2690 [2023-11-23 10:09:04,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:09:04,406 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 2234 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 1786 mSolverCounterSat, 905 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2547 SdHoareTripleChecker+Valid, 3401 SdHoareTripleChecker+Invalid, 2694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 905 IncrementalHoareTripleChecker+Valid, 1786 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:09:04,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2547 Valid, 3401 Invalid, 2694 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [905 Valid, 1786 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2023-11-23 10:09:04,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2023-11-23 10:09:04,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2320. [2023-11-23 10:09:04,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2320 states, 1520 states have (on average 1.4236842105263159) internal successors, (2164), 1580 states have internal predecessors, (2164), 670 states have call successors, (670), 130 states have call predecessors, (670), 129 states have return successors, (657), 651 states have call predecessors, (657), 657 states have call successors, (657) [2023-11-23 10:09:04,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3491 transitions. [2023-11-23 10:09:04,590 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3491 transitions. Word has length 54 [2023-11-23 10:09:04,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:09:04,591 INFO L495 AbstractCegarLoop]: Abstraction has 2320 states and 3491 transitions. [2023-11-23 10:09:04,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 10:09:04,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3491 transitions. [2023-11-23 10:09:04,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 10:09:04,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:09:04,597 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 10:09:04,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 10:09:04,598 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:09:04,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:09:04,598 INFO L85 PathProgramCache]: Analyzing trace with hash 962968872, now seen corresponding path program 1 times [2023-11-23 10:09:04,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:09:04,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900777885] [2023-11-23 10:09:04,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:09:04,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:09:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:05,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:09:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:05,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:09:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:05,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:09:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:05,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:09:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:05,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:09:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:05,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:09:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:05,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 10:09:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:05,633 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 10:09:05,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:09:05,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900777885] [2023-11-23 10:09:05,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900777885] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:09:05,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:09:05,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:09:05,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848028997] [2023-11-23 10:09:05,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:09:05,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:09:05,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:09:05,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:09:05,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:09:05,639 INFO L87 Difference]: Start difference. First operand 2320 states and 3491 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-23 10:09:07,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:09:09,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:09:11,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:09:23,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:09:23,516 INFO L93 Difference]: Finished difference Result 6084 states and 9506 transitions. [2023-11-23 10:09:23,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:09:23,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 54 [2023-11-23 10:09:23,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:09:23,548 INFO L225 Difference]: With dead ends: 6084 [2023-11-23 10:09:23,548 INFO L226 Difference]: Without dead ends: 6059 [2023-11-23 10:09:23,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:09:23,553 INFO L413 NwaCegarLoop]: 1491 mSDtfsCounter, 3261 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 1162 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3632 SdHoareTripleChecker+Valid, 4309 SdHoareTripleChecker+Invalid, 3657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1162 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:09:23,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3632 Valid, 4309 Invalid, 3657 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1162 Valid, 2492 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2023-11-23 10:09:23,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6059 states. [2023-11-23 10:09:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6059 to 4563. [2023-11-23 10:09:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4563 states, 2999 states have (on average 1.422807602534178) internal successors, (4267), 3107 states have internal predecessors, (4267), 1311 states have call successors, (1311), 255 states have call predecessors, (1311), 252 states have return successors, (1299), 1284 states have call predecessors, (1299), 1299 states have call successors, (1299) [2023-11-23 10:09:23,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4563 states to 4563 states and 6877 transitions. [2023-11-23 10:09:23,715 INFO L78 Accepts]: Start accepts. Automaton has 4563 states and 6877 transitions. Word has length 54 [2023-11-23 10:09:23,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:09:23,715 INFO L495 AbstractCegarLoop]: Abstraction has 4563 states and 6877 transitions. [2023-11-23 10:09:23,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-23 10:09:23,716 INFO L276 IsEmpty]: Start isEmpty. Operand 4563 states and 6877 transitions. [2023-11-23 10:09:23,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-23 10:09:23,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:09:23,718 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 10:09:23,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 10:09:23,719 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:09:23,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:09:23,719 INFO L85 PathProgramCache]: Analyzing trace with hash -213750772, now seen corresponding path program 1 times [2023-11-23 10:09:23,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:09:23,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400683876] [2023-11-23 10:09:23,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:09:23,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:09:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:24,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:09:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:24,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:09:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:24,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:09:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:24,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:09:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:24,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:09:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:24,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:09:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:24,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 10:09:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:24,640 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 10:09:24,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:09:24,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400683876] [2023-11-23 10:09:24,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400683876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:09:24,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:09:24,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:09:24,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426241050] [2023-11-23 10:09:24,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:09:24,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:09:24,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:09:24,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:09:24,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:09:24,643 INFO L87 Difference]: Start difference. First operand 4563 states and 6877 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-23 10:09:26,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:09:28,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:09:30,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:09:40,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:09:40,787 INFO L93 Difference]: Finished difference Result 16609 states and 25727 transitions. [2023-11-23 10:09:40,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:09:40,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 55 [2023-11-23 10:09:40,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:09:40,852 INFO L225 Difference]: With dead ends: 16609 [2023-11-23 10:09:40,852 INFO L226 Difference]: Without dead ends: 12059 [2023-11-23 10:09:40,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:09:40,876 INFO L413 NwaCegarLoop]: 1543 mSDtfsCounter, 3889 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 2004 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4258 SdHoareTripleChecker+Valid, 3631 SdHoareTripleChecker+Invalid, 4109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2004 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2023-11-23 10:09:40,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4258 Valid, 3631 Invalid, 4109 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2004 Valid, 2102 Invalid, 3 Unknown, 0 Unchecked, 15.6s Time] [2023-11-23 10:09:40,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12059 states. [2023-11-23 10:09:41,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12059 to 9064. [2023-11-23 10:09:41,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9064 states, 5966 states have (on average 1.4235668789808917) internal successors, (8493), 6174 states have internal predecessors, (8493), 2599 states have call successors, (2599), 503 states have call predecessors, (2599), 498 states have return successors, (2581), 2554 states have call predecessors, (2581), 2581 states have call successors, (2581) [2023-11-23 10:09:41,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9064 states to 9064 states and 13673 transitions. [2023-11-23 10:09:41,386 INFO L78 Accepts]: Start accepts. Automaton has 9064 states and 13673 transitions. Word has length 55 [2023-11-23 10:09:41,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:09:41,387 INFO L495 AbstractCegarLoop]: Abstraction has 9064 states and 13673 transitions. [2023-11-23 10:09:41,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-23 10:09:41,388 INFO L276 IsEmpty]: Start isEmpty. Operand 9064 states and 13673 transitions. [2023-11-23 10:09:41,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 10:09:41,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:09:41,391 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:09:41,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 10:09:41,391 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:09:41,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:09:41,392 INFO L85 PathProgramCache]: Analyzing trace with hash 967523217, now seen corresponding path program 1 times [2023-11-23 10:09:41,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:09:41,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486382433] [2023-11-23 10:09:41,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:09:41,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:09:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:42,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:09:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:42,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:09:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:42,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:09:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:42,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:09:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:42,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:09:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:09:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:42,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 10:09:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:42,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:09:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:42,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:09:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:42,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 10:09:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:42,330 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 10:09:42,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:09:42,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486382433] [2023-11-23 10:09:42,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486382433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:09:42,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:09:42,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:09:42,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436700226] [2023-11-23 10:09:42,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:09:42,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:09:42,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:09:42,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:09:42,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:09:42,333 INFO L87 Difference]: Start difference. First operand 9064 states and 13673 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-23 10:09:44,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:09:46,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:09:48,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:09:58,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:09:58,234 INFO L93 Difference]: Finished difference Result 33118 states and 51308 transitions. [2023-11-23 10:09:58,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:09:58,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 71 [2023-11-23 10:09:58,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:09:58,331 INFO L225 Difference]: With dead ends: 33118 [2023-11-23 10:09:58,331 INFO L226 Difference]: Without dead ends: 24064 [2023-11-23 10:09:58,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:09:58,362 INFO L413 NwaCegarLoop]: 1360 mSDtfsCounter, 3947 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 2050 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4314 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 4090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2050 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2023-11-23 10:09:58,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4314 Valid, 3615 Invalid, 4090 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2050 Valid, 2037 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2023-11-23 10:09:58,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24064 states. [2023-11-23 10:09:59,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24064 to 18057. [2023-11-23 10:09:59,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18057 states, 11899 states have (on average 1.4240692495167662) internal successors, (16945), 12305 states have internal predecessors, (16945), 5167 states have call successors, (5167), 998 states have call predecessors, (5167), 990 states have return successors, (5147), 5089 states have call predecessors, (5147), 5147 states have call successors, (5147) [2023-11-23 10:09:59,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18057 states to 18057 states and 27259 transitions. [2023-11-23 10:09:59,115 INFO L78 Accepts]: Start accepts. Automaton has 18057 states and 27259 transitions. Word has length 71 [2023-11-23 10:09:59,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:09:59,118 INFO L495 AbstractCegarLoop]: Abstraction has 18057 states and 27259 transitions. [2023-11-23 10:09:59,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-23 10:09:59,118 INFO L276 IsEmpty]: Start isEmpty. Operand 18057 states and 27259 transitions. [2023-11-23 10:09:59,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 10:09:59,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:09:59,121 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:09:59,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 10:09:59,121 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:09:59,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:09:59,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1617436374, now seen corresponding path program 1 times [2023-11-23 10:09:59,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:09:59,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390911840] [2023-11-23 10:09:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:09:59,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:09:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:10:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:10:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:10:01,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:10:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:10:01,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:10:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:10:01,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:10:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:10:01,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:10:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:10:01,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:10:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:10:01,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 10:10:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:10:01,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:10:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:10:01,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:10:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:10:01,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 10:10:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:10:01,945 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 10:10:01,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:10:01,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390911840] [2023-11-23 10:10:01,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390911840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:10:01,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:10:01,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 10:10:01,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152066470] [2023-11-23 10:10:01,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:10:01,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 10:10:01,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:10:01,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 10:10:01,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2023-11-23 10:10:01,947 INFO L87 Difference]: Start difference. First operand 18057 states and 27259 transitions. Second operand has 14 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 10:10:03,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:06,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:08,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:10,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:12,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:14,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:16,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:18,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:20,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:22,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:24,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:26,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:03,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:11:03,713 INFO L93 Difference]: Finished difference Result 60071 states and 92997 transitions. [2023-11-23 10:11:03,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 10:11:03,714 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 74 [2023-11-23 10:11:03,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:11:03,932 INFO L225 Difference]: With dead ends: 60071 [2023-11-23 10:11:03,933 INFO L226 Difference]: Without dead ends: 42027 [2023-11-23 10:11:03,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2023-11-23 10:11:03,994 INFO L413 NwaCegarLoop]: 1328 mSDtfsCounter, 3397 mSDsluCounter, 12581 mSDsCounter, 0 mSdLazyCounter, 9571 mSolverCounterSat, 1264 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3773 SdHoareTripleChecker+Valid, 13909 SdHoareTripleChecker+Invalid, 10847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1264 IncrementalHoareTripleChecker+Valid, 9571 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.1s IncrementalHoareTripleChecker+Time [2023-11-23 10:11:03,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3773 Valid, 13909 Invalid, 10847 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1264 Valid, 9571 Invalid, 12 Unknown, 0 Unchecked, 59.1s Time] [2023-11-23 10:11:04,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42027 states. [2023-11-23 10:11:05,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42027 to 31457. [2023-11-23 10:11:05,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31457 states, 20734 states have (on average 1.4240860422494455) internal successors, (29527), 21447 states have internal predecessors, (29527), 8988 states have call successors, (8988), 1730 states have call predecessors, (8988), 1734 states have return successors, (9024), 8867 states have call predecessors, (9024), 8968 states have call successors, (9024) [2023-11-23 10:11:05,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31457 states to 31457 states and 47539 transitions. [2023-11-23 10:11:05,600 INFO L78 Accepts]: Start accepts. Automaton has 31457 states and 47539 transitions. Word has length 74 [2023-11-23 10:11:05,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:11:05,601 INFO L495 AbstractCegarLoop]: Abstraction has 31457 states and 47539 transitions. [2023-11-23 10:11:05,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 10:11:05,601 INFO L276 IsEmpty]: Start isEmpty. Operand 31457 states and 47539 transitions. [2023-11-23 10:11:05,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 10:11:05,603 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:11:05,604 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:11:05,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 10:11:05,604 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:11:05,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:11:05,604 INFO L85 PathProgramCache]: Analyzing trace with hash -25059175, now seen corresponding path program 1 times [2023-11-23 10:11:05,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:11:05,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601137057] [2023-11-23 10:11:05,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:11:05,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:11:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:11:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:11:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:11:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:11:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:11:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:11:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 10:11:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:11:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:11:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 10:11:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 10:11:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 10:11:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:06,793 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 10:11:06,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:11:06,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601137057] [2023-11-23 10:11:06,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601137057] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:11:06,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:11:06,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:11:06,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313719731] [2023-11-23 10:11:06,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:11:06,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:11:06,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:11:06,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:11:06,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:11:06,797 INFO L87 Difference]: Start difference. First operand 31457 states and 47539 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 10:11:08,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:10,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:12,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:14,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:11:31,502 INFO L93 Difference]: Finished difference Result 73324 states and 113089 transitions. [2023-11-23 10:11:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:11:31,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 84 [2023-11-23 10:11:31,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:11:31,703 INFO L225 Difference]: With dead ends: 73324 [2023-11-23 10:11:31,703 INFO L226 Difference]: Without dead ends: 41880 [2023-11-23 10:11:31,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:11:31,779 INFO L413 NwaCegarLoop]: 2628 mSDtfsCounter, 2357 mSDsluCounter, 3829 mSDsCounter, 0 mSdLazyCounter, 3801 mSolverCounterSat, 714 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2717 SdHoareTripleChecker+Valid, 6457 SdHoareTripleChecker+Invalid, 4519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 714 IncrementalHoareTripleChecker+Valid, 3801 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2023-11-23 10:11:31,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2717 Valid, 6457 Invalid, 4519 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [714 Valid, 3801 Invalid, 4 Unknown, 0 Unchecked, 23.0s Time] [2023-11-23 10:11:31,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41880 states. [2023-11-23 10:11:33,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41880 to 31438. [2023-11-23 10:11:33,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31438 states, 20715 states have (on average 1.4237026309437606) internal successors, (29492), 21430 states have internal predecessors, (29492), 8988 states have call successors, (8988), 1730 states have call predecessors, (8988), 1734 states have return successors, (9024), 8865 states have call predecessors, (9024), 8968 states have call successors, (9024) [2023-11-23 10:11:33,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31438 states to 31438 states and 47504 transitions. [2023-11-23 10:11:33,269 INFO L78 Accepts]: Start accepts. Automaton has 31438 states and 47504 transitions. Word has length 84 [2023-11-23 10:11:33,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:11:33,269 INFO L495 AbstractCegarLoop]: Abstraction has 31438 states and 47504 transitions. [2023-11-23 10:11:33,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 10:11:33,270 INFO L276 IsEmpty]: Start isEmpty. Operand 31438 states and 47504 transitions. [2023-11-23 10:11:33,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-23 10:11:33,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:11:33,272 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:11:33,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 10:11:33,273 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:11:33,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:11:33,273 INFO L85 PathProgramCache]: Analyzing trace with hash -905782017, now seen corresponding path program 1 times [2023-11-23 10:11:33,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:11:33,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554887565] [2023-11-23 10:11:33,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:11:33,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:11:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:34,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:11:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:34,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:11:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:34,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:11:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:34,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:11:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:34,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:11:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:11:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:34,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 10:11:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:34,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:11:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:34,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:11:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:34,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 10:11:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:34,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 10:11:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-23 10:11:34,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:11:34,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554887565] [2023-11-23 10:11:34,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554887565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:11:34,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:11:34,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 10:11:34,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840918911] [2023-11-23 10:11:34,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:11:34,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 10:11:34,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:11:34,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 10:11:34,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:11:34,541 INFO L87 Difference]: Start difference. First operand 31438 states and 47504 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 10:11:36,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:38,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:40,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:42,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:44,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:56,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:11:56,965 INFO L93 Difference]: Finished difference Result 55925 states and 85869 transitions. [2023-11-23 10:11:56,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 10:11:56,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 87 [2023-11-23 10:11:56,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:11:57,056 INFO L225 Difference]: With dead ends: 55925 [2023-11-23 10:11:57,057 INFO L226 Difference]: Without dead ends: 24500 [2023-11-23 10:11:57,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-23 10:11:57,117 INFO L413 NwaCegarLoop]: 1589 mSDtfsCounter, 3035 mSDsluCounter, 3694 mSDsCounter, 0 mSdLazyCounter, 3025 mSolverCounterSat, 1369 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3300 SdHoareTripleChecker+Valid, 5283 SdHoareTripleChecker+Invalid, 4399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1369 IncrementalHoareTripleChecker+Valid, 3025 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2023-11-23 10:11:57,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3300 Valid, 5283 Invalid, 4399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1369 Valid, 3025 Invalid, 5 Unknown, 0 Unchecked, 21.0s Time] [2023-11-23 10:11:57,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24500 states. [2023-11-23 10:11:57,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24500 to 17419. [2023-11-23 10:11:57,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 11457 states have (on average 1.4161647900846643) internal successors, (16225), 11860 states have internal predecessors, (16225), 4945 states have call successors, (4945), 1012 states have call predecessors, (4945), 1016 states have return successors, (4942), 4861 states have call predecessors, (4942), 4925 states have call successors, (4942) [2023-11-23 10:11:58,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 26112 transitions. [2023-11-23 10:11:58,051 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 26112 transitions. Word has length 87 [2023-11-23 10:11:58,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:11:58,051 INFO L495 AbstractCegarLoop]: Abstraction has 17419 states and 26112 transitions. [2023-11-23 10:11:58,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-23 10:11:58,052 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 26112 transitions. [2023-11-23 10:11:58,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-23 10:11:58,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:11:58,054 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:11:58,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 10:11:58,055 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:11:58,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:11:58,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1592564469, now seen corresponding path program 1 times [2023-11-23 10:11:58,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:11:58,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410712436] [2023-11-23 10:11:58,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:11:58,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:11:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:11:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:11:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:11:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:11:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:11:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:11:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 10:11:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 10:11:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:11:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 10:11:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 10:11:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 10:11:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:11:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-23 10:11:59,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:11:59,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410712436] [2023-11-23 10:11:59,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410712436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:11:59,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:11:59,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 10:11:59,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487494341] [2023-11-23 10:11:59,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:11:59,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 10:11:59,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:11:59,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 10:11:59,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 10:11:59,390 INFO L87 Difference]: Start difference. First operand 17419 states and 26112 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 10:12:01,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:03,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:05,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:07,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:09,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:21,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:12:21,465 INFO L93 Difference]: Finished difference Result 39339 states and 60251 transitions. [2023-11-23 10:12:21,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 10:12:21,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2023-11-23 10:12:21,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:12:21,637 INFO L225 Difference]: With dead ends: 39339 [2023-11-23 10:12:21,638 INFO L226 Difference]: Without dead ends: 23012 [2023-11-23 10:12:21,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:12:21,682 INFO L413 NwaCegarLoop]: 1421 mSDtfsCounter, 768 mSDsluCounter, 3818 mSDsCounter, 0 mSdLazyCounter, 3203 mSolverCounterSat, 419 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 5239 SdHoareTripleChecker+Invalid, 3627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 3203 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2023-11-23 10:12:21,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 5239 Invalid, 3627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [419 Valid, 3203 Invalid, 5 Unknown, 0 Unchecked, 21.1s Time] [2023-11-23 10:12:21,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23012 states. [2023-11-23 10:12:22,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23012 to 17417. [2023-11-23 10:12:22,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17417 states, 11461 states have (on average 1.4156705348573424) internal successors, (16225), 11864 states have internal predecessors, (16225), 4941 states have call successors, (4941), 1008 states have call predecessors, (4941), 1014 states have return successors, (4938), 4859 states have call predecessors, (4938), 4921 states have call successors, (4938) [2023-11-23 10:12:22,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17417 states to 17417 states and 26104 transitions. [2023-11-23 10:12:22,581 INFO L78 Accepts]: Start accepts. Automaton has 17417 states and 26104 transitions. Word has length 89 [2023-11-23 10:12:22,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:12:22,581 INFO L495 AbstractCegarLoop]: Abstraction has 17417 states and 26104 transitions. [2023-11-23 10:12:22,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 10:12:22,582 INFO L276 IsEmpty]: Start isEmpty. Operand 17417 states and 26104 transitions. [2023-11-23 10:12:22,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 10:12:22,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:12:22,585 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 10:12:22,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 10:12:22,585 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:12:22,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:12:22,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1806807182, now seen corresponding path program 1 times [2023-11-23 10:12:22,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:12:22,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421125340] [2023-11-23 10:12:22,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:12:22,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:12:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:25,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:12:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:25,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:12:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:25,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:12:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:25,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:12:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:25,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:12:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:25,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:12:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:25,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 10:12:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:25,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:12:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:25,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:12:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:25,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:12:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:25,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:12:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:25,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-23 10:12:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:12:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:26,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 10:12:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:12:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-23 10:12:26,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:12:26,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421125340] [2023-11-23 10:12:26,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421125340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:12:26,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:12:26,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-23 10:12:26,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9991015] [2023-11-23 10:12:26,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:12:26,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 10:12:26,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:12:26,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 10:12:26,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2023-11-23 10:12:26,242 INFO L87 Difference]: Start difference. First operand 17417 states and 26104 transitions. Second operand has 16 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 5 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-23 10:12:28,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:30,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:32,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:34,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:36,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:38,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:40,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:42,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:44,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:46,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:48,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:50,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:12:52,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15