./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 c7c6ca5d 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-?-c7c6ca5-m [2024-11-09 04:22:05,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:22:05,295 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 04:22:05,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:22:05,301 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:22:05,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:22:05,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:22:05,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:22:05,337 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 04:22:05,339 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 04:22:05,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:22:05,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:22:05,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 04:22:05,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 04:22:05,343 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 04:22:05,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:22:05,343 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:22:05,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:22:05,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:22:05,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:22:05,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:22:05,348 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:22:05,349 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:22:05,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:22:05,349 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:22:05,349 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:22:05,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:22:05,350 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:22:05,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:22:05,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:22:05,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:22:05,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:22:05,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:22:05,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 04:22:05,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:22:05,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:22:05,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 04:22:05,355 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 04:22:05,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:22:05,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcd76f3400222a7434b370a764d7267d42d60812577a6e3d633d4f9c70f9f427 [2024-11-09 04:22:05,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:22:05,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:22:05,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:22:05,642 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:22:05,642 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:22:05,644 INFO L431 ainManager$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 [2024-11-09 04:22:07,143 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:22:07,480 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:22:07,481 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 [2024-11-09 04:22:07,512 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72ece31c/68caeb78f6fc4c8389ed38e9d9d02c54/FLAG515d3ca93 [2024-11-09 04:22:07,527 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72ece31c/68caeb78f6fc4c8389ed38e9d9d02c54 [2024-11-09 04:22:07,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:22:07,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:22:07,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:22:07,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:22:07,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:22:07,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:22:07" (1/1) ... [2024-11-09 04:22:07,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a7e74c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:07, skipping insertion in model container [2024-11-09 04:22:07,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:22:07" (1/1) ... [2024-11-09 04:22:07,610 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:22:07,968 WARN L1351 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2024-11-09 04:22:07,968 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] [2024-11-09 04:22:08,046 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] [2024-11-09 04:22:08,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:22:08,269 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:22:08,323 WARN L1351 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2024-11-09 04:22:08,327 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] [2024-11-09 04:22:08,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [1449] [2024-11-09 04:22:08,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [1457] [2024-11-09 04:22:08,345 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] [2024-11-09 04:22:08,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:22:08,550 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:22:08,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08 WrapperNode [2024-11-09 04:22:08,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:22:08,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:22:08,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:22:08,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:22:08,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (1/1) ... [2024-11-09 04:22:08,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (1/1) ... [2024-11-09 04:22:08,651 INFO L138 Inliner]: procedures = 79, calls = 395, calls flagged for inlining = 27, calls inlined = 25, statements flattened = 1093 [2024-11-09 04:22:08,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:22:08,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:22:08,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:22:08,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:22:08,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (1/1) ... [2024-11-09 04:22:08,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (1/1) ... [2024-11-09 04:22:08,685 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (1/1) ... [2024-11-09 04:22:08,752 INFO L175 MemorySlicer]: Split 284 memory accesses to 6 slices as follows [2, 25, 26, 207, 5, 19]. 73 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 0, 2, 6, 0, 0]. The 254 writes are split as follows [0, 25, 11, 201, 0, 17]. [2024-11-09 04:22:08,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (1/1) ... [2024-11-09 04:22:08,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (1/1) ... [2024-11-09 04:22:08,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (1/1) ... [2024-11-09 04:22:08,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (1/1) ... [2024-11-09 04:22:08,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (1/1) ... [2024-11-09 04:22:08,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (1/1) ... [2024-11-09 04:22:08,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:22:08,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:22:08,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:22:08,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:22:08,822 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (1/1) ... [2024-11-09 04:22:08,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:22:08,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 04:22:08,867 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) [2024-11-09 04:22:08,879 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 [2024-11-09 04:22:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-11-09 04:22:08,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-11-09 04:22:08,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:22:08,922 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2024-11-09 04:22:08,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2024-11-09 04:22:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 04:22:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 04:22:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 04:22:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 04:22:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 04:22:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 04:22:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 04:22:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 04:22:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 04:22:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 04:22:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 04:22:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 04:22:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-09 04:22:08,926 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-09 04:22:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2024-11-09 04:22:08,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2024-11-09 04:22:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2024-11-09 04:22:08,926 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2024-11-09 04:22:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 04:22:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 04:22:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 04:22:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 04:22:08,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 04:22:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 04:22:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 04:22:08,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 04:22:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 04:22:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 04:22:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 04:22:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 04:22:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 04:22:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 04:22:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2024-11-09 04:22:08,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2024-11-09 04:22:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 04:22:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 04:22:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 04:22:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 04:22:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 04:22:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 04:22:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2024-11-09 04:22:08,929 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2024-11-09 04:22:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 04:22:08,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 04:22:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:22:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 04:22:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 04:22:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 04:22:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 04:22:08,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 04:22:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 04:22:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-09 04:22:08,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-09 04:22:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 04:22:08,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 04:22:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 04:22:08,931 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 04:22:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 04:22:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 04:22:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 04:22:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 04:22:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 04:22:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 04:22:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2024-11-09 04:22:08,932 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2024-11-09 04:22:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 04:22:08,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 04:22:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-09 04:22:08,932 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-09 04:22:08,933 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-09 04:22:08,933 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-09 04:22:08,933 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2024-11-09 04:22:08,934 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2024-11-09 04:22:08,934 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-09 04:22:08,934 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-09 04:22:08,934 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:22:08,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:22:08,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 04:22:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 04:22:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 04:22:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 04:22:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 04:22:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 04:22:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-09 04:22:08,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-09 04:22:08,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:22:08,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 04:22:08,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 04:22:08,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:22:08,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:22:09,223 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:22:09,226 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:22:09,287 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 04:22:18,502 INFO L? ?]: Removed 323 outVars from TransFormulas that were not future-live. [2024-11-09 04:22:18,502 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:22:18,524 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:22:18,525 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:22:18,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:22:18 BoogieIcfgContainer [2024-11-09 04:22:18,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:22:18,527 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:22:18,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:22:18,532 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:22:18,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:22:07" (1/3) ... [2024-11-09 04:22:18,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446b6570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:22:18, skipping insertion in model container [2024-11-09 04:22:18,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:22:08" (2/3) ... [2024-11-09 04:22:18,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446b6570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:22:18, skipping insertion in model container [2024-11-09 04:22:18,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:22:18" (3/3) ... [2024-11-09 04:22:18,536 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 [2024-11-09 04:22:18,550 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:22:18,550 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:22:18,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:22:18,637 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;@4c4a8b41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:22:18,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:22:18,642 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) [2024-11-09 04:22:18,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 04:22:18,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:22:18,659 INFO L215 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] [2024-11-09 04:22:18,659 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:22:18,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:22:18,666 INFO L85 PathProgramCache]: Analyzing trace with hash 725682405, now seen corresponding path program 1 times [2024-11-09 04:22:18,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:22:18,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098952593] [2024-11-09 04:22:18,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:22:18,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:22:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:22:37,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:22:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:22:37,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:22:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:22:37,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-09 04:22:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:22:37,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:22:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:22:37,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 04:22:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:22:37,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-09 04:22:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:22:37,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 04:22:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:22:37,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-09 04:22:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:22:37,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 04:22:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:22:37,820 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 04:22:37,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:22:37,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098952593] [2024-11-09 04:22:37,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098952593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:22:37,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:22:37,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:22:37,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10329906] [2024-11-09 04:22:37,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:22:37,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:22:37,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:22:37,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:22:37,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:22:37,864 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) [2024-11-09 04:22:41,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:22:46,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:22:49,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:22:49,586 INFO L93 Difference]: Finished difference Result 691 states and 982 transitions. [2024-11-09 04:22:49,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:22:49,589 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 [2024-11-09 04:22:49,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:22:49,604 INFO L225 Difference]: With dead ends: 691 [2024-11-09 04:22:49,605 INFO L226 Difference]: Without dead ends: 329 [2024-11-09 04:22:49,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:22:49,641 INFO L432 NwaCegarLoop]: 411 mSDtfsCounter, 59 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:22:49,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 997 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 193 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2024-11-09 04:22:49,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-09 04:22:49,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 319. [2024-11-09 04:22:49,715 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) [2024-11-09 04:22:49,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 439 transitions. [2024-11-09 04:22:49,721 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 439 transitions. Word has length 77 [2024-11-09 04:22:49,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:22:49,721 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 439 transitions. [2024-11-09 04:22:49,722 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) [2024-11-09 04:22:49,722 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 439 transitions. [2024-11-09 04:22:49,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 04:22:49,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:22:49,727 INFO L215 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] [2024-11-09 04:22:49,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:22:49,731 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:22:49,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:22:49,732 INFO L85 PathProgramCache]: Analyzing trace with hash -331284504, now seen corresponding path program 1 times [2024-11-09 04:22:49,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:22:49,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350387334] [2024-11-09 04:22:49,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:22:49,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:23:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:08,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:23:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:08,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:23:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:09,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-09 04:23:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:09,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:23:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:09,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 04:23:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:09,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 04:23:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:09,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 04:23:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:09,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 04:23:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:09,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 04:23:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 04:23:09,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:23:09,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350387334] [2024-11-09 04:23:09,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350387334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:23:09,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:23:09,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:23:09,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264571391] [2024-11-09 04:23:09,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:23:09,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:23:09,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:23:09,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:23:09,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:23:09,053 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) [2024-11-09 04:23:13,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:23:17,486 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 [] [2024-11-09 04:23:22,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:23:22,090 INFO L93 Difference]: Finished difference Result 718 states and 1019 transitions. [2024-11-09 04:23:22,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:23:22,091 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 [2024-11-09 04:23:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:23:22,098 INFO L225 Difference]: With dead ends: 718 [2024-11-09 04:23:22,098 INFO L226 Difference]: Without dead ends: 413 [2024-11-09 04:23:22,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:23:22,101 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 196 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 161 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:23:22,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 983 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 316 Invalid, 2 Unknown, 0 Unchecked, 12.9s Time] [2024-11-09 04:23:22,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-09 04:23:22,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 383. [2024-11-09 04:23:22,143 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) [2024-11-09 04:23:22,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 533 transitions. [2024-11-09 04:23:22,147 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 533 transitions. Word has length 79 [2024-11-09 04:23:22,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:23:22,147 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 533 transitions. [2024-11-09 04:23:22,148 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) [2024-11-09 04:23:22,148 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 533 transitions. [2024-11-09 04:23:22,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 04:23:22,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:23:22,151 INFO L215 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] [2024-11-09 04:23:22,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:23:22,151 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:23:22,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:23:22,152 INFO L85 PathProgramCache]: Analyzing trace with hash -359245899, now seen corresponding path program 1 times [2024-11-09 04:23:22,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:23:22,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028098604] [2024-11-09 04:23:22,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:23:22,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:23:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:23:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:23:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 04:23:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:23:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 04:23:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 04:23:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:23:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 04:23:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-09 04:23:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:23:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 04:23:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 04:23:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:23:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:23:40,580 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-09 04:23:40,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:23:40,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028098604] [2024-11-09 04:23:40,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028098604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:23:40,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:23:40,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:23:40,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18827425] [2024-11-09 04:23:40,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:23:40,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:23:40,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:23:40,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:23:40,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:23:40,584 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)