./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.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 7d3d6fae331941e7aeb3ae8634b57ab7fbe899fba4d7b00d559e126b42e6ea03 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 20:40:26,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 20:40:26,647 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 20:40:26,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 20:40:26,654 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 20:40:26,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 20:40:26,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 20:40:26,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 20:40:26,689 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 20:40:26,690 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 20:40:26,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 20:40:26,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 20:40:26,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 20:40:26,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 20:40:26,693 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 20:40:26,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 20:40:26,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 20:40:26,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 20:40:26,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 20:40:26,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 20:40:26,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 20:40:26,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 20:40:26,699 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 20:40:26,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 20:40:26,699 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 20:40:26,700 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 20:40:26,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 20:40:26,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 20:40:26,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 20:40:26,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 20:40:26,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 20:40:26,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 20:40:26,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 20:40:26,706 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 20:40:26,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 20:40:26,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 20:40:26,707 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 20:40:26,707 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 20:40:26,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 20:40:26,708 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d3d6fae331941e7aeb3ae8634b57ab7fbe899fba4d7b00d559e126b42e6ea03 [2024-11-16 20:40:26,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 20:40:26,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 20:40:26,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 20:40:26,938 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 20:40:26,939 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 20:40:26,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i [2024-11-16 20:40:28,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 20:40:28,817 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 20:40:28,818 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i [2024-11-16 20:40:28,855 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961545067/f719d22e9bf549c7b8eba47e481fe49d/FLAG3470b5acc [2024-11-16 20:40:28,874 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961545067/f719d22e9bf549c7b8eba47e481fe49d [2024-11-16 20:40:28,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 20:40:28,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 20:40:28,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 20:40:28,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 20:40:28,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 20:40:28,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:40:28" (1/1) ... [2024-11-16 20:40:28,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a183273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:28, skipping insertion in model container [2024-11-16 20:40:28,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:40:28" (1/1) ... [2024-11-16 20:40:29,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 20:40:30,192 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i[185143,185156] [2024-11-16 20:40:30,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 20:40:30,300 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 20:40:30,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4935] [2024-11-16 20:40:30,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4942] [2024-11-16 20:40:30,461 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)buf->vb.queue.next) [5294] [2024-11-16 20:40:30,503 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)d->drvlist.next) [5768] [2024-11-16 20:40:30,553 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)dev->devlist.next) [5925] [2024-11-16 20:40:30,564 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)dev->devlist.next) [5987] [2024-11-16 20:40:30,589 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i[185143,185156] [2024-11-16 20:40:30,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 20:40:30,666 INFO L204 MainTranslator]: Completed translation [2024-11-16 20:40:30,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30 WrapperNode [2024-11-16 20:40:30,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 20:40:30,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 20:40:30,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 20:40:30,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 20:40:30,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (1/1) ... [2024-11-16 20:40:30,744 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (1/1) ... [2024-11-16 20:40:30,851 INFO L138 Inliner]: procedures = 183, calls = 969, calls flagged for inlining = 82, calls inlined = 60, statements flattened = 1845 [2024-11-16 20:40:30,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 20:40:30,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 20:40:30,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 20:40:30,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 20:40:30,863 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (1/1) ... [2024-11-16 20:40:30,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (1/1) ... [2024-11-16 20:40:30,886 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (1/1) ... [2024-11-16 20:40:31,206 INFO L175 MemorySlicer]: Split 388 memory accesses to 13 slices as follows [2, 4, 40, 7, 239, 4, 7, 8, 7, 22, 7, 39, 2]. 62 percent of accesses are in the largest equivalence class. The 102 initializations are split as follows [2, 4, 40, 7, 16, 4, 7, 8, 7, 0, 7, 0, 0]. The 93 writes are split as follows [0, 0, 0, 0, 31, 0, 0, 0, 0, 22, 0, 39, 1]. [2024-11-16 20:40:31,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (1/1) ... [2024-11-16 20:40:31,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (1/1) ... [2024-11-16 20:40:31,294 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (1/1) ... [2024-11-16 20:40:31,296 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (1/1) ... [2024-11-16 20:40:31,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (1/1) ... [2024-11-16 20:40:31,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (1/1) ... [2024-11-16 20:40:31,343 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 20:40:31,344 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 20:40:31,344 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 20:40:31,344 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 20:40:31,345 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (1/1) ... [2024-11-16 20:40:31,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 20:40:31,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 20:40:31,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 20:40:31,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 20:40:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2024-11-16 20:40:31,435 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2024-11-16 20:40:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 20:40:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 20:40:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 20:40:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 20:40:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 20:40:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 20:40:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-16 20:40:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-16 20:40:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-16 20:40:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-16 20:40:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-16 20:40:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-16 20:40:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-16 20:40:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_restart_queue [2024-11-16 20:40:31,437 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_restart_queue [2024-11-16 20:40:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 20:40:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 20:40:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 20:40:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 20:40:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 20:40:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 20:40:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 20:40:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-16 20:40:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-16 20:40:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-16 20:40:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-16 20:40:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-16 20:40:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-16 20:40:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_cx88_core [2024-11-16 20:40:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_cx88_core [2024-11-16 20:40:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_cx88_core [2024-11-16 20:40:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_cx88_core [2024-11-16 20:40:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-16 20:40:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-16 20:40:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2024-11-16 20:40:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2024-11-16 20:40:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-16 20:40:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-16 20:40:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-16 20:40:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-16 20:40:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 20:40:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 20:40:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 20:40:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 20:40:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 20:40:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 20:40:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 20:40:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-16 20:40:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-16 20:40:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-16 20:40:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-16 20:40:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-16 20:40:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-16 20:40:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-16 20:40:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-16 20:40:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-16 20:40:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-16 20:40:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-16 20:40:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-16 20:40:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2024-11-16 20:40:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2024-11-16 20:40:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 20:40:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-16 20:40:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-16 20:40:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-16 20:40:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-16 20:40:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 20:40:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2024-11-16 20:40:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2024-11-16 20:40:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-16 20:40:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-16 20:40:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 20:40:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 20:40:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 20:40:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 20:40:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 20:40:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 20:40:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 20:40:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-16 20:40:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-16 20:40:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-16 20:40:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-16 20:40:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-16 20:40:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-16 20:40:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-16 20:40:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-16 20:40:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-16 20:40:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure do_cancel_buffers [2024-11-16 20:40:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure do_cancel_buffers [2024-11-16 20:40:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_start_dma [2024-11-16 20:40:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_start_dma [2024-11-16 20:40:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-16 20:40:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-16 20:40:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 20:40:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-11-16 20:40:31,451 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-11-16 20:40:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_put [2024-11-16 20:40:31,451 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_put [2024-11-16 20:40:31,452 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_stop_dma [2024-11-16 20:40:31,452 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_stop_dma [2024-11-16 20:40:31,452 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2024-11-16 20:40:31,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2024-11-16 20:40:31,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 20:40:31,452 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_request_acquire [2024-11-16 20:40:31,452 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_request_acquire [2024-11-16 20:40:31,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 20:40:31,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 20:40:31,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 20:40:31,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 20:40:31,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 20:40:31,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 20:40:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-16 20:40:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-16 20:40:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-16 20:40:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-16 20:40:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-16 20:40:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-16 20:40:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-16 20:40:31,456 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2024-11-16 20:40:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2024-11-16 20:40:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-16 20:40:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-16 20:40:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_request_release [2024-11-16 20:40:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_request_release [2024-11-16 20:40:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_dump [2024-11-16 20:40:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_dump [2024-11-16 20:40:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2024-11-16 20:40:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2024-11-16 20:40:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-16 20:40:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-16 20:40:31,457 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-16 20:40:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-16 20:40:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2024-11-16 20:40:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2024-11-16 20:40:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-16 20:40:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-16 20:40:31,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-16 20:40:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-16 20:40:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-16 20:40:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-16 20:40:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-16 20:40:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2024-11-16 20:40:31,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2024-11-16 20:40:31,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 20:40:31,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 20:40:32,045 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 20:40:32,048 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 20:40:32,081 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4793: havoc #t~mem10.base, #t~mem10.offset; [2024-11-16 20:40:32,214 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5273: #res := 0; [2024-11-16 20:40:32,234 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4887: havoc ~res~0#1.base, ~res~0#1.offset; [2024-11-16 20:40:32,243 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6937: havoc pci_bus_read_config_byte_#t~nondet703#1; [2024-11-16 20:40:32,271 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6948: havoc #t~nondet705; [2024-11-16 20:40:32,314 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6822: havoc _raw_spin_lock_irqsave_#t~nondet688#1; [2024-11-16 20:40:32,562 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6869: havoc cx88_sram_channel_setup_#t~nondet694#1; [2024-11-16 20:40:32,623 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6851: havoc cx88_reset_#t~nondet691#1; [2024-11-16 20:40:32,630 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6883: havoc dev_get_drvdata_#t~ret697#1.base, dev_get_drvdata_#t~ret697#1.offset; [2024-11-16 20:40:32,673 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6919: havoc #t~nondet700; [2024-11-16 20:40:32,717 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6962: havoc #t~nondet707; [2024-11-16 20:40:32,719 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: havoc #t~nondet708; [2024-11-16 20:40:32,745 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923: havoc #t~nondet701; [2024-11-16 20:40:32,765 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4897: havoc __kmalloc_#t~ret50#1.base, __kmalloc_#t~ret50#1.offset; [2024-11-16 20:40:37,438 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6973: havoc request_threaded_irq_#t~nondet709#1; [2024-11-16 20:40:37,438 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5058: call ULTIMATE.dealloc(request_modules_~#__key~0#1.base, request_modules_~#__key~0#1.offset);havoc request_modules_~#__key~0#1.base, request_modules_~#__key~0#1.offset;call ULTIMATE.dealloc(request_modules_~#__constr_expr_0~0#1.base, request_modules_~#__constr_expr_0~0#1.offset);havoc request_modules_~#__constr_expr_0~0#1.base, request_modules_~#__constr_expr_0~0#1.offset; [2024-11-16 20:40:37,439 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6977: havoc schedule_work_#t~nondet710#1; [2024-11-16 20:40:37,439 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4870: havoc kobject_name_#t~mem45#1.base, kobject_name_#t~mem45#1.offset; [2024-11-16 20:40:37,439 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6890: havoc dma_supported_#t~nondet698#1; [2024-11-16 20:40:37,439 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6859: havoc cx88_risc_stopper_#t~nondet693#1; [2024-11-16 20:40:37,439 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6894: havoc flush_work_sync_#t~nondet699#1; [2024-11-16 20:40:37,439 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6834: havoc cx88_core_get_#t~ret689#1.base, cx88_core_get_#t~ret689#1.offset; [2024-11-16 20:40:37,439 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5613: call ULTIMATE.dealloc(cx8802_init_common_~#__key~1#1.base, cx8802_init_common_~#__key~1#1.offset);havoc cx8802_init_common_~#__key~1#1.base, cx8802_init_common_~#__key~1#1.offset;call ULTIMATE.dealloc(cx8802_init_common_~#__key___0~0#1.base, cx8802_init_common_~#__key___0~0#1.offset);havoc cx8802_init_common_~#__key___0~0#1.base, cx8802_init_common_~#__key___0~0#1.offset; [2024-11-16 20:40:37,440 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4922: havoc dev_name_#t~mem55#1.base, dev_name_#t~mem55#1.offset; [2024-11-16 20:40:37,440 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6838: havoc cx88_core_irq_#t~nondet690#1; [2024-11-16 20:40:37,440 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6805: havoc __pci_register_driver_#t~nondet686#1; [2024-11-16 20:40:37,658 INFO L? ?]: Removed 851 outVars from TransFormulas that were not future-live. [2024-11-16 20:40:37,658 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 20:40:37,711 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 20:40:37,711 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 20:40:37,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:40:37 BoogieIcfgContainer [2024-11-16 20:40:37,715 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 20:40:37,717 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 20:40:37,717 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 20:40:37,720 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 20:40:37,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:40:28" (1/3) ... [2024-11-16 20:40:37,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7bd376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:40:37, skipping insertion in model container [2024-11-16 20:40:37,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:30" (2/3) ... [2024-11-16 20:40:37,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7bd376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:40:37, skipping insertion in model container [2024-11-16 20:40:37,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:40:37" (3/3) ... [2024-11-16 20:40:37,723 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-video-cx88-cx8802-ko--32_7a--d47b389.i [2024-11-16 20:40:37,737 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 20:40:37,738 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 20:40:37,820 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 20:40:37,828 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@dcfa050, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 20:40:37,828 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 20:40:37,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 737 states, 522 states have (on average 1.2969348659003832) internal successors, (677), 541 states have internal predecessors, (677), 176 states have call successors, (176), 37 states have call predecessors, (176), 37 states have return successors, (176), 170 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-16 20:40:37,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-16 20:40:37,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:40:37,844 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 20:40:37,845 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:40:37,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:40:37,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2057009516, now seen corresponding path program 1 times [2024-11-16 20:40:37,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:40:37,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138025641] [2024-11-16 20:40:37,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:40:37,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:40:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:38,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 20:40:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:38,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:40:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:38,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 20:40:38,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:40:38,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138025641] [2024-11-16 20:40:38,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138025641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:40:38,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:40:38,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 20:40:38,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824435021] [2024-11-16 20:40:38,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:40:38,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 20:40:38,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:40:38,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 20:40:38,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 20:40:38,968 INFO L87 Difference]: Start difference. First operand has 737 states, 522 states have (on average 1.2969348659003832) internal successors, (677), 541 states have internal predecessors, (677), 176 states have call successors, (176), 37 states have call predecessors, (176), 37 states have return successors, (176), 170 states have call predecessors, (176), 176 states have call successors, (176) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 20:40:43,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:40:43,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 20:40:43,306 INFO L93 Difference]: Finished difference Result 1713 states and 2409 transitions. [2024-11-16 20:40:43,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 20:40:43,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-16 20:40:43,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 20:40:43,338 INFO L225 Difference]: With dead ends: 1713 [2024-11-16 20:40:43,339 INFO L226 Difference]: Without dead ends: 982 [2024-11-16 20:40:43,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 20:40:43,355 INFO L432 NwaCegarLoop]: 1239 mSDtfsCounter, 851 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-16 20:40:43,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1710 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-16 20:40:43,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2024-11-16 20:40:43,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 979. [2024-11-16 20:40:43,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 690 states have (on average 1.2695652173913043) internal successors, (876), 712 states have internal predecessors, (876), 234 states have call successors, (234), 55 states have call predecessors, (234), 54 states have return successors, (230), 218 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-16 20:40:43,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1340 transitions. [2024-11-16 20:40:43,514 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1340 transitions. Word has length 20 [2024-11-16 20:40:43,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 20:40:43,515 INFO L471 AbstractCegarLoop]: Abstraction has 979 states and 1340 transitions. [2024-11-16 20:40:43,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 20:40:43,516 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1340 transitions. [2024-11-16 20:40:43,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-16 20:40:43,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:40:43,518 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 20:40:43,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 20:40:43,518 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:40:43,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:40:43,539 INFO L85 PathProgramCache]: Analyzing trace with hash 637565981, now seen corresponding path program 1 times [2024-11-16 20:40:43,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:40:43,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687432659] [2024-11-16 20:40:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:40:43,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:40:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:44,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 20:40:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:44,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:40:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 20:40:44,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:40:44,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687432659] [2024-11-16 20:40:44,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687432659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:40:44,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:40:44,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 20:40:44,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624680656] [2024-11-16 20:40:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:40:44,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 20:40:44,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:40:44,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 20:40:44,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 20:40:44,117 INFO L87 Difference]: Start difference. First operand 979 states and 1340 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 20:40:48,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:40:48,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 20:40:48,276 INFO L93 Difference]: Finished difference Result 982 states and 1342 transitions. [2024-11-16 20:40:48,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 20:40:48,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-16 20:40:48,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 20:40:48,289 INFO L225 Difference]: With dead ends: 982 [2024-11-16 20:40:48,289 INFO L226 Difference]: Without dead ends: 978 [2024-11-16 20:40:48,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 20:40:48,291 INFO L432 NwaCegarLoop]: 974 mSDtfsCounter, 989 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-16 20:40:48,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 974 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-16 20:40:48,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2024-11-16 20:40:48,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 978. [2024-11-16 20:40:48,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 690 states have (on average 1.2681159420289856) internal successors, (875), 711 states have internal predecessors, (875), 233 states have call successors, (233), 55 states have call predecessors, (233), 54 states have return successors, (230), 218 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-16 20:40:48,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1338 transitions. [2024-11-16 20:40:48,369 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1338 transitions. Word has length 21 [2024-11-16 20:40:48,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 20:40:48,370 INFO L471 AbstractCegarLoop]: Abstraction has 978 states and 1338 transitions. [2024-11-16 20:40:48,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 20:40:48,370 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1338 transitions. [2024-11-16 20:40:48,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-16 20:40:48,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:40:48,371 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 20:40:48,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 20:40:48,371 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:40:48,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:40:48,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1729971245, now seen corresponding path program 1 times [2024-11-16 20:40:48,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:40:48,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567181429] [2024-11-16 20:40:48,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:40:48,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:40:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:48,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 20:40:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:48,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:40:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:48,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 20:40:48,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:40:48,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567181429] [2024-11-16 20:40:48,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567181429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:40:48,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:40:48,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 20:40:48,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140375172] [2024-11-16 20:40:48,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:40:48,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 20:40:48,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:40:48,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 20:40:48,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 20:40:48,923 INFO L87 Difference]: Start difference. First operand 978 states and 1338 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 20:40:52,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:40:53,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 20:40:53,071 INFO L93 Difference]: Finished difference Result 981 states and 1340 transitions. [2024-11-16 20:40:53,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 20:40:53,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-16 20:40:53,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 20:40:53,078 INFO L225 Difference]: With dead ends: 981 [2024-11-16 20:40:53,079 INFO L226 Difference]: Without dead ends: 977 [2024-11-16 20:40:53,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 20:40:53,080 INFO L432 NwaCegarLoop]: 972 mSDtfsCounter, 986 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-16 20:40:53,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 972 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-16 20:40:53,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-11-16 20:40:53,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2024-11-16 20:40:53,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 690 states have (on average 1.2666666666666666) internal successors, (874), 710 states have internal predecessors, (874), 232 states have call successors, (232), 55 states have call predecessors, (232), 54 states have return successors, (230), 218 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-16 20:40:53,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1336 transitions. [2024-11-16 20:40:53,137 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1336 transitions. Word has length 22 [2024-11-16 20:40:53,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 20:40:53,138 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1336 transitions. [2024-11-16 20:40:53,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 20:40:53,138 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1336 transitions. [2024-11-16 20:40:53,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-16 20:40:53,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:40:53,139 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 20:40:53,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 20:40:53,139 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:40:53,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:40:53,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2109212932, now seen corresponding path program 1 times [2024-11-16 20:40:53,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:40:53,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303253811] [2024-11-16 20:40:53,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:40:53,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:40:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:53,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 20:40:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:53,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:40:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:53,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 20:40:53,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:40:53,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303253811] [2024-11-16 20:40:53,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303253811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:40:53,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:40:53,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 20:40:53,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782057551] [2024-11-16 20:40:53,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:40:53,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 20:40:53,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:40:53,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 20:40:53,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 20:40:53,666 INFO L87 Difference]: Start difference. First operand 977 states and 1336 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 20:40:57,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:40:57,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 20:40:57,832 INFO L93 Difference]: Finished difference Result 980 states and 1338 transitions. [2024-11-16 20:40:57,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 20:40:57,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-16 20:40:57,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 20:40:57,841 INFO L225 Difference]: With dead ends: 980 [2024-11-16 20:40:57,841 INFO L226 Difference]: Without dead ends: 966 [2024-11-16 20:40:57,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 20:40:57,844 INFO L432 NwaCegarLoop]: 971 mSDtfsCounter, 983 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-16 20:40:57,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 971 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-16 20:40:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2024-11-16 20:40:57,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2024-11-16 20:40:57,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 681 states have (on average 1.2657856093979443) internal successors, (862), 700 states have internal predecessors, (862), 230 states have call successors, (230), 55 states have call predecessors, (230), 54 states have return successors, (229), 217 states have call predecessors, (229), 229 states have call successors, (229) [2024-11-16 20:40:57,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1321 transitions. [2024-11-16 20:40:57,975 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1321 transitions. Word has length 23 [2024-11-16 20:40:57,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 20:40:57,975 INFO L471 AbstractCegarLoop]: Abstraction has 966 states and 1321 transitions. [2024-11-16 20:40:57,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 20:40:57,975 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1321 transitions. [2024-11-16 20:40:57,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 20:40:57,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:40:57,979 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 20:40:57,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 20:40:57,979 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:40:57,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:40:57,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1441593667, now seen corresponding path program 1 times [2024-11-16 20:40:57,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:40:57,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586976887] [2024-11-16 20:40:57,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:40:57,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:40:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:58,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 20:40:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:58,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:40:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:58,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 20:40:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:58,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 20:40:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:58,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:40:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:58,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 20:40:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:58,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 20:40:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:58,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 20:40:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:40:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 20:40:58,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:40:58,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586976887] [2024-11-16 20:40:58,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586976887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:40:58,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:40:58,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 20:40:58,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900992242] [2024-11-16 20:40:58,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:40:58,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 20:40:58,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:40:58,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 20:40:58,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 20:40:58,737 INFO L87 Difference]: Start difference. First operand 966 states and 1321 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 20:41:02,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:41:06,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:41:09,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 20:41:09,401 INFO L93 Difference]: Finished difference Result 2130 states and 2943 transitions. [2024-11-16 20:41:09,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 20:41:09,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2024-11-16 20:41:09,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 20:41:09,411 INFO L225 Difference]: With dead ends: 2130 [2024-11-16 20:41:09,411 INFO L226 Difference]: Without dead ends: 1174 [2024-11-16 20:41:09,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 20:41:09,416 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 1023 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 589 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-16 20:41:09,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1317 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 1533 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-16 20:41:09,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2024-11-16 20:41:09,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1107. [2024-11-16 20:41:09,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 788 states have (on average 1.2868020304568528) internal successors, (1014), 810 states have internal predecessors, (1014), 264 states have call successors, (264), 55 states have call predecessors, (264), 54 states have return successors, (263), 251 states have call predecessors, (263), 263 states have call successors, (263) [2024-11-16 20:41:09,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1541 transitions. [2024-11-16 20:41:09,494 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1541 transitions. Word has length 65 [2024-11-16 20:41:09,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 20:41:09,494 INFO L471 AbstractCegarLoop]: Abstraction has 1107 states and 1541 transitions. [2024-11-16 20:41:09,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 20:41:09,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1541 transitions. [2024-11-16 20:41:09,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 20:41:09,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:41:09,500 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 20:41:09,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 20:41:09,501 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:41:09,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:41:09,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1802652103, now seen corresponding path program 1 times [2024-11-16 20:41:09,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:41:09,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714819194] [2024-11-16 20:41:09,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:41:09,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:41:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:10,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 20:41:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:10,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:41:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:10,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 20:41:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:10,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 20:41:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:10,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 20:41:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:10,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:41:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:10,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 20:41:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:10,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 20:41:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:10,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 20:41:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:10,196 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 20:41:10,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:41:10,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714819194] [2024-11-16 20:41:10,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714819194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:41:10,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:41:10,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 20:41:10,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470266395] [2024-11-16 20:41:10,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:41:10,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 20:41:10,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:41:10,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 20:41:10,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 20:41:10,199 INFO L87 Difference]: Start difference. First operand 1107 states and 1541 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 20:41:14,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:41:18,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:41:21,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 20:41:21,045 INFO L93 Difference]: Finished difference Result 2275 states and 3165 transitions. [2024-11-16 20:41:21,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 20:41:21,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2024-11-16 20:41:21,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 20:41:21,056 INFO L225 Difference]: With dead ends: 2275 [2024-11-16 20:41:21,056 INFO L226 Difference]: Without dead ends: 1174 [2024-11-16 20:41:21,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 20:41:21,061 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 807 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 547 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-16 20:41:21,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1544 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 2167 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2024-11-16 20:41:21,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2024-11-16 20:41:21,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1107. [2024-11-16 20:41:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 788 states have (on average 1.2855329949238579) internal successors, (1013), 810 states have internal predecessors, (1013), 264 states have call successors, (264), 55 states have call predecessors, (264), 54 states have return successors, (263), 251 states have call predecessors, (263), 263 states have call successors, (263) [2024-11-16 20:41:21,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1540 transitions. [2024-11-16 20:41:21,123 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1540 transitions. Word has length 83 [2024-11-16 20:41:21,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 20:41:21,123 INFO L471 AbstractCegarLoop]: Abstraction has 1107 states and 1540 transitions. [2024-11-16 20:41:21,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 20:41:21,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1540 transitions. [2024-11-16 20:41:21,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 20:41:21,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:41:21,127 INFO L215 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 20:41:21,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 20:41:21,128 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:41:21,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:41:21,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2115817067, now seen corresponding path program 1 times [2024-11-16 20:41:21,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:41:21,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134284274] [2024-11-16 20:41:21,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:41:21,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:41:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:21,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 20:41:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:21,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:41:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:21,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 20:41:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:21,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 20:41:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:21,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 20:41:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:21,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 20:41:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:21,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 20:41:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:21,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:41:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:21,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 20:41:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:21,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 20:41:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:21,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 20:41:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:21,976 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 20:41:21,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:41:21,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134284274] [2024-11-16 20:41:21,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134284274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:41:21,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:41:21,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 20:41:21,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927345321] [2024-11-16 20:41:21,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:41:21,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 20:41:21,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:41:21,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 20:41:21,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 20:41:21,979 INFO L87 Difference]: Start difference. First operand 1107 states and 1540 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 20:41:25,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:41:30,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:41:32,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 20:41:32,915 INFO L93 Difference]: Finished difference Result 2278 states and 3167 transitions. [2024-11-16 20:41:32,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 20:41:32,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 96 [2024-11-16 20:41:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 20:41:32,925 INFO L225 Difference]: With dead ends: 2278 [2024-11-16 20:41:32,925 INFO L226 Difference]: Without dead ends: 1174 [2024-11-16 20:41:32,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 20:41:32,932 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 807 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 2834 mSolverCounterSat, 549 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 3385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 2834 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-16 20:41:32,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1854 Invalid, 3385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [549 Valid, 2834 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2024-11-16 20:41:32,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2024-11-16 20:41:32,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1107. [2024-11-16 20:41:32,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 788 states have (on average 1.284263959390863) internal successors, (1012), 810 states have internal predecessors, (1012), 264 states have call successors, (264), 55 states have call predecessors, (264), 54 states have return successors, (263), 251 states have call predecessors, (263), 263 states have call successors, (263) [2024-11-16 20:41:32,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1539 transitions. [2024-11-16 20:41:33,001 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1539 transitions. Word has length 96 [2024-11-16 20:41:33,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 20:41:33,001 INFO L471 AbstractCegarLoop]: Abstraction has 1107 states and 1539 transitions. [2024-11-16 20:41:33,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 20:41:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1539 transitions. [2024-11-16 20:41:33,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 20:41:33,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:41:33,005 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 20:41:33,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 20:41:33,005 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:41:33,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:41:33,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1494625083, now seen corresponding path program 1 times [2024-11-16 20:41:33,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:41:33,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321858872] [2024-11-16 20:41:33,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:41:33,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:41:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 20:41:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:41:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 20:41:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 20:41:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 20:41:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 20:41:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 20:41:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 20:41:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 20:41:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:41:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 20:41:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 20:41:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 20:41:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:33,804 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 20:41:33,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:41:33,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321858872] [2024-11-16 20:41:33,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321858872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:41:33,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:41:33,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 20:41:33,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618948982] [2024-11-16 20:41:33,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:41:33,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 20:41:33,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:41:33,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 20:41:33,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 20:41:33,807 INFO L87 Difference]: Start difference. First operand 1107 states and 1539 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 20:41:37,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:41:41,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:41:44,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 20:41:44,194 INFO L93 Difference]: Finished difference Result 2278 states and 3165 transitions. [2024-11-16 20:41:44,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 20:41:44,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2024-11-16 20:41:44,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 20:41:44,202 INFO L225 Difference]: With dead ends: 2278 [2024-11-16 20:41:44,203 INFO L226 Difference]: Without dead ends: 1174 [2024-11-16 20:41:44,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 20:41:44,208 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 851 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 548 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 3368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-16 20:41:44,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1805 Invalid, 3368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 2818 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2024-11-16 20:41:44,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2024-11-16 20:41:44,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1107. [2024-11-16 20:41:44,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 788 states have (on average 1.282994923857868) internal successors, (1011), 809 states have internal predecessors, (1011), 264 states have call successors, (264), 55 states have call predecessors, (264), 54 states have return successors, (263), 251 states have call predecessors, (263), 263 states have call successors, (263) [2024-11-16 20:41:44,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1538 transitions. [2024-11-16 20:41:44,265 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1538 transitions. Word has length 112 [2024-11-16 20:41:44,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 20:41:44,266 INFO L471 AbstractCegarLoop]: Abstraction has 1107 states and 1538 transitions. [2024-11-16 20:41:44,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 20:41:44,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1538 transitions. [2024-11-16 20:41:44,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 20:41:44,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:41:44,269 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 20:41:44,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 20:41:44,269 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:41:44,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:41:44,270 INFO L85 PathProgramCache]: Analyzing trace with hash -697153924, now seen corresponding path program 1 times [2024-11-16 20:41:44,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:41:44,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491613727] [2024-11-16 20:41:44,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:41:44,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:41:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:44,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 20:41:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:44,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:41:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:44,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 20:41:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:44,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 20:41:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:44,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 20:41:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:44,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 20:41:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:44,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 20:41:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:44,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 20:41:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:44,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 20:41:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:45,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 20:41:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:45,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 20:41:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:45,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:41:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:45,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 20:41:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:45,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 20:41:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:45,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 20:41:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:41:45,095 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 20:41:45,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:41:45,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491613727] [2024-11-16 20:41:45,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491613727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:41:45,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:41:45,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 20:41:45,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031182259] [2024-11-16 20:41:45,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:41:45,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 20:41:45,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:41:45,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 20:41:45,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 20:41:45,099 INFO L87 Difference]: Start difference. First operand 1107 states and 1538 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 20:41:49,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:41:53,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []