./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fcd76f3400222a7434b370a764d7267d42d60812577a6e3d633d4f9c70f9f427 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 10:00:41,192 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 10:00:41,240 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 10:00:41,243 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 10:00:41,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 10:00:41,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 10:00:41,271 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 10:00:41,271 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 10:00:41,272 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 10:00:41,273 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 10:00:41,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 10:00:41,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 10:00:41,274 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 10:00:41,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 10:00:41,275 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 10:00:41,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 10:00:41,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 10:00:41,277 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 10:00:41,277 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 10:00:41,277 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 10:00:41,277 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 10:00:41,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 10:00:41,280 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 10:00:41,280 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 10:00:41,280 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 10:00:41,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 10:00:41,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 10:00:41,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 10:00:41,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 10:00:41,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 10:00:41,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 10:00:41,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 10:00:41,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 10:00:41,281 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 10:00:41,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 10:00:41,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 10:00:41,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 10:00:41,282 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 10:00:41,282 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 10:00:41,282 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcd76f3400222a7434b370a764d7267d42d60812577a6e3d633d4f9c70f9f427 [2024-11-12 10:00:41,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 10:00:41,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 10:00:41,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 10:00:41,527 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 10:00:41,527 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 10:00:41,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-11-12 10:00:43,030 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 10:00:43,270 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 10:00:43,270 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-11-12 10:00:43,290 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7143d4726/87ffbc3930514ba38249a469e07e05bf/FLAG068cfcbef [2024-11-12 10:00:43,323 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7143d4726/87ffbc3930514ba38249a469e07e05bf [2024-11-12 10:00:43,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 10:00:43,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 10:00:43,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 10:00:43,330 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 10:00:43,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 10:00:43,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:00:43" (1/1) ... [2024-11-12 10:00:43,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@164c0031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:43, skipping insertion in model container [2024-11-12 10:00:43,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:00:43" (1/1) ... [2024-11-12 10:00:43,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 10:00:43,657 WARN L1351 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2024-11-12 10:00:43,658 WARN L1351 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1335-1336] [2024-11-12 10:00:43,722 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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i[42973,42986] [2024-11-12 10:00:43,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 10:00:43,898 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 10:00:43,951 WARN L1351 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2024-11-12 10:00:43,952 WARN L1351 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1335-1336] [2024-11-12 10:00:43,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [1449] [2024-11-12 10:00:43,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [1457] [2024-11-12 10:00:43,963 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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i[42973,42986] [2024-11-12 10:00:44,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 10:00:44,054 INFO L204 MainTranslator]: Completed translation [2024-11-12 10:00:44,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44 WrapperNode [2024-11-12 10:00:44,055 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 10:00:44,056 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 10:00:44,056 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 10:00:44,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 10:00:44,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (1/1) ... [2024-11-12 10:00:44,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (1/1) ... [2024-11-12 10:00:44,153 INFO L138 Inliner]: procedures = 79, calls = 395, calls flagged for inlining = 27, calls inlined = 25, statements flattened = 1093 [2024-11-12 10:00:44,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 10:00:44,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 10:00:44,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 10:00:44,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 10:00:44,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (1/1) ... [2024-11-12 10:00:44,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (1/1) ... [2024-11-12 10:00:44,176 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (1/1) ... [2024-11-12 10:00:44,233 INFO L175 MemorySlicer]: Split 284 memory accesses to 6 slices as follows [2, 25, 5, 26, 207, 19]. 73 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 0, 0, 2, 6, 0]. The 254 writes are split as follows [0, 25, 0, 11, 201, 17]. [2024-11-12 10:00:44,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (1/1) ... [2024-11-12 10:00:44,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (1/1) ... [2024-11-12 10:00:44,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (1/1) ... [2024-11-12 10:00:44,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (1/1) ... [2024-11-12 10:00:44,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (1/1) ... [2024-11-12 10:00:44,292 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (1/1) ... [2024-11-12 10:00:44,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 10:00:44,299 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 10:00:44,299 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 10:00:44,299 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 10:00:44,300 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (1/1) ... [2024-11-12 10:00:44,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 10:00:44,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 10:00:44,330 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) [2024-11-12 10:00:44,337 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 [2024-11-12 10:00:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-11-12 10:00:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-11-12 10:00:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 10:00:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2024-11-12 10:00:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2024-11-12 10:00:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 10:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 10:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 10:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 10:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-12 10:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-12 10:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 10:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 10:00:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 10:00:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 10:00:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 10:00:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-12 10:00:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-12 10:00:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-12 10:00:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2024-11-12 10:00:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2024-11-12 10:00:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2024-11-12 10:00:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2024-11-12 10:00:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-12 10:00:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-12 10:00:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-12 10:00:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-12 10:00:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-12 10:00:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-12 10:00:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-12 10:00:44,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-12 10:00:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 10:00:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 10:00:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 10:00:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 10:00:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 10:00:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 10:00:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2024-11-12 10:00:44,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2024-11-12 10:00:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 10:00:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 10:00:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 10:00:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 10:00:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 10:00:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-12 10:00:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2024-11-12 10:00:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2024-11-12 10:00:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-12 10:00:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-12 10:00:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 10:00:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 10:00:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 10:00:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 10:00:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 10:00:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-12 10:00:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-12 10:00:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-12 10:00:44,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-12 10:00:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-12 10:00:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-12 10:00:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-12 10:00:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-12 10:00:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 10:00:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 10:00:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 10:00:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 10:00:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 10:00:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 10:00:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2024-11-12 10:00:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2024-11-12 10:00:44,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-12 10:00:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-12 10:00:44,390 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-12 10:00:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-12 10:00:44,390 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-12 10:00:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-12 10:00:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2024-11-12 10:00:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2024-11-12 10:00:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-12 10:00:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-12 10:00:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 10:00:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 10:00:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 10:00:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 10:00:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 10:00:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 10:00:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 10:00:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 10:00:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-12 10:00:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-12 10:00:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 10:00:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-12 10:00:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-12 10:00:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 10:00:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 10:00:44,595 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 10:00:44,597 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 10:00:44,635 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-12 10:00:52,905 INFO L? ?]: Removed 323 outVars from TransFormulas that were not future-live. [2024-11-12 10:00:52,905 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 10:00:52,930 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 10:00:52,930 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 10:00:52,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:00:52 BoogieIcfgContainer [2024-11-12 10:00:52,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 10:00:52,933 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 10:00:52,933 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 10:00:52,935 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 10:00:52,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:00:43" (1/3) ... [2024-11-12 10:00:52,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1678a6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:00:52, skipping insertion in model container [2024-11-12 10:00:52,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:00:44" (2/3) ... [2024-11-12 10:00:52,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1678a6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:00:52, skipping insertion in model container [2024-11-12 10:00:52,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:00:52" (3/3) ... [2024-11-12 10:00:52,938 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-11-12 10:00:52,964 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 10:00:52,964 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 10:00:53,082 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 10:00:53,089 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;@50417fb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 10:00:53,089 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 10:00:53,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 343 states, 258 states have (on average 1.3682170542635659) internal successors, (353), 263 states have internal predecessors, (353), 63 states have call successors, (63), 21 states have call predecessors, (63), 20 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-12 10:00:53,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-12 10:00:53,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 10:00:53,119 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-12 10:00:53,120 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 10:00:53,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 10:00:53,126 INFO L85 PathProgramCache]: Analyzing trace with hash 725682405, now seen corresponding path program 1 times [2024-11-12 10:00:53,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 10:00:53,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041543574] [2024-11-12 10:00:53,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 10:00:53,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 10:01:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:13,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 10:01:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:13,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 10:01:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:13,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 10:01:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:13,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 10:01:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:13,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-12 10:01:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:13,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-12 10:01:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:13,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 10:01:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:13,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-12 10:01:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:13,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-12 10:01:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-12 10:01:13,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 10:01:13,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041543574] [2024-11-12 10:01:13,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041543574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 10:01:13,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 10:01:13,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 10:01:13,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929324157] [2024-11-12 10:01:13,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 10:01:13,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 10:01:13,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 10:01:13,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 10:01:13,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 10:01:13,299 INFO L87 Difference]: Start difference. First operand has 343 states, 258 states have (on average 1.3682170542635659) internal successors, (353), 263 states have internal predecessors, (353), 63 states have call successors, (63), 21 states have call predecessors, (63), 20 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 2 states have internal predecessors, (50), 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) [2024-11-12 10:01:17,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 10:01:21,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 10:01:24,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 10:01:24,961 INFO L93 Difference]: Finished difference Result 691 states and 982 transitions. [2024-11-12 10:01:24,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 10:01:24,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 2 states have internal predecessors, (50), 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 77 [2024-11-12 10:01:24,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 10:01:24,974 INFO L225 Difference]: With dead ends: 691 [2024-11-12 10:01:24,975 INFO L226 Difference]: Without dead ends: 329 [2024-11-12 10:01:24,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 10:01:24,981 INFO L435 NwaCegarLoop]: 413 mSDtfsCounter, 59 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-12 10:01:24,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 1003 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 193 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2024-11-12 10:01:24,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-12 10:01:25,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 319. [2024-11-12 10:01:25,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 241 states have (on average 1.3443983402489628) internal successors, (324), 241 states have internal predecessors, (324), 58 states have call successors, (58), 20 states have call predecessors, (58), 19 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-12 10:01:25,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 439 transitions. [2024-11-12 10:01:25,062 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 439 transitions. Word has length 77 [2024-11-12 10:01:25,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 10:01:25,063 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 439 transitions. [2024-11-12 10:01:25,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 2 states have internal predecessors, (50), 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) [2024-11-12 10:01:25,063 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 439 transitions. [2024-11-12 10:01:25,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-12 10:01:25,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 10:01:25,073 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-12 10:01:25,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 10:01:25,074 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 10:01:25,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 10:01:25,076 INFO L85 PathProgramCache]: Analyzing trace with hash -331284504, now seen corresponding path program 1 times [2024-11-12 10:01:25,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 10:01:25,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118002418] [2024-11-12 10:01:25,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 10:01:25,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 10:01:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:44,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 10:01:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:44,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 10:01:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:44,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 10:01:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:44,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 10:01:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:44,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-12 10:01:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:44,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-12 10:01:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:44,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-12 10:01:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:45,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 10:01:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:45,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-12 10:01:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:01:45,009 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-12 10:01:45,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 10:01:45,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118002418] [2024-11-12 10:01:45,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118002418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 10:01:45,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 10:01:45,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 10:01:45,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202826650] [2024-11-12 10:01:45,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 10:01:45,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 10:01:45,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 10:01:45,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 10:01:45,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 10:01:45,013 INFO L87 Difference]: Start difference. First operand 319 states and 439 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-11-12 10:01:49,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 10:01:53,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 10:01:58,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 10:01:58,108 INFO L93 Difference]: Finished difference Result 718 states and 1019 transitions. [2024-11-12 10:01:58,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 10:01:58,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 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 79 [2024-11-12 10:01:58,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 10:01:58,113 INFO L225 Difference]: With dead ends: 718 [2024-11-12 10:01:58,113 INFO L226 Difference]: Without dead ends: 413 [2024-11-12 10:01:58,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 10:01:58,115 INFO L435 NwaCegarLoop]: 405 mSDtfsCounter, 196 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 161 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2024-11-12 10:01:58,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 981 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 316 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2024-11-12 10:01:58,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-12 10:01:58,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 383. [2024-11-12 10:01:58,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 295 states have (on average 1.3491525423728814) internal successors, (398), 295 states have internal predecessors, (398), 68 states have call successors, (68), 20 states have call predecessors, (68), 19 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-12 10:01:58,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 533 transitions. [2024-11-12 10:01:58,136 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 533 transitions. Word has length 79 [2024-11-12 10:01:58,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 10:01:58,136 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 533 transitions. [2024-11-12 10:01:58,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-11-12 10:01:58,137 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 533 transitions. [2024-11-12 10:01:58,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-12 10:01:58,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 10:01:58,139 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-12 10:01:58,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 10:01:58,139 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 10:01:58,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 10:01:58,140 INFO L85 PathProgramCache]: Analyzing trace with hash -359245899, now seen corresponding path program 1 times [2024-11-12 10:01:58,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 10:01:58,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34815415] [2024-11-12 10:01:58,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 10:01:58,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 10:02:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 10:02:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 10:02:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 10:02:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 10:02:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-12 10:02:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-12 10:02:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 10:02:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 10:02:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-12 10:02:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 10:02:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-12 10:02:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-12 10:02:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 10:02:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 10:02:17,733 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-12 10:02:17,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 10:02:17,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34815415] [2024-11-12 10:02:17,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34815415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 10:02:17,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 10:02:17,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 10:02:17,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476327792] [2024-11-12 10:02:17,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 10:02:17,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 10:02:17,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 10:02:17,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 10:02:17,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 10:02:17,736 INFO L87 Difference]: Start difference. First operand 383 states and 533 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-12 10:02:21,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 10:02:26,087 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 []