./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1 --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 0.3.0-dev-d790fec [2024-12-02 11:38:13,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:38:13,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 11:38:13,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:38:13,403 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:38:13,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:38:13,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:38:13,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:38:13,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:38:13,427 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:38:13,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:38:13,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:38:13,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:38:13,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:38:13,428 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:38:13,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:38:13,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:38:13,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:38:13,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:38:13,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:38:13,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:38:13,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:38:13,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:38:13,429 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:38:13,429 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:38:13,429 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:38:13,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:38:13,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:38:13,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:38:13,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:38:13,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:38:13,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:38:13,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:38:13,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:38:13,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:38:13,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:38:13,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:38:13,430 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:38:13,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:38:13,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:38:13,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:38:13,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:38:13,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:38:13,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:38:13,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:38:13,431 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 11:38:13,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:38:13,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:38:13,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:38:13,673 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:38:13,674 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:38:13,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-12-02 11:38:16,317 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/data/b0e178db6/1c7a7998b6db464789ea033754eae554/FLAG48d66c6ce [2024-12-02 11:38:16,608 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:38:16,608 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-12-02 11:38:16,624 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/data/b0e178db6/1c7a7998b6db464789ea033754eae554/FLAG48d66c6ce [2024-12-02 11:38:16,637 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/data/b0e178db6/1c7a7998b6db464789ea033754eae554 [2024-12-02 11:38:16,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:38:16,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:38:16,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:38:16,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:38:16,646 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:38:16,647 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:38:16" (1/1) ... [2024-12-02 11:38:16,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31471ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16, skipping insertion in model container [2024-12-02 11:38:16,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:38:16" (1/1) ... [2024-12-02 11:38:16,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:38:16,907 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2024-12-02 11:38:16,907 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1335-1336] [2024-12-02 11:38:16,956 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/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] [2024-12-02 11:38:17,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:38:17,087 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:38:17,128 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2024-12-02 11:38:17,128 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1335-1336] [2024-12-02 11:38:17,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [1449] [2024-12-02 11:38:17,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [1457] [2024-12-02 11:38:17,141 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/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] [2024-12-02 11:38:17,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:38:17,211 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:38:17,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17 WrapperNode [2024-12-02 11:38:17,212 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:38:17,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:38:17,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:38:17,213 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:38:17,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,284 INFO L138 Inliner]: procedures = 79, calls = 395, calls flagged for inlining = 27, calls inlined = 25, statements flattened = 1071 [2024-12-02 11:38:17,285 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:38:17,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:38:17,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:38:17,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:38:17,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,302 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,345 INFO L175 MemorySlicer]: Split 284 memory accesses to 6 slices as follows [2, 25, 5, 207, 26, 19]. 73 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 0, 0, 6, 2, 0]. The 254 writes are split as follows [0, 25, 0, 201, 11, 17]. [2024-12-02 11:38:17,345 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,393 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:38:17,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:38:17,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:38:17,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:38:17,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (1/1) ... [2024-12-02 11:38:17,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:38:17,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:38:17,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:38:17,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:38:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-12-02 11:38:17,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-12-02 11:38:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:38:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2024-12-02 11:38:17,463 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2024-12-02 11:38:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 11:38:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 11:38:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 11:38:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 11:38:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 11:38:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 11:38:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 11:38:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 11:38:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 11:38:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 11:38:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 11:38:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 11:38:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-12-02 11:38:17,464 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-12-02 11:38:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2024-12-02 11:38:17,464 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2024-12-02 11:38:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2024-12-02 11:38:17,464 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2024-12-02 11:38:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 11:38:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 11:38:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 11:38:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 11:38:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 11:38:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 11:38:17,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2024-12-02 11:38:17,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 11:38:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 11:38:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2024-12-02 11:38:17,466 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2024-12-02 11:38:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 11:38:17,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 11:38:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:38:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 11:38:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 11:38:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 11:38:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 11:38:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 11:38:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 11:38:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-12-02 11:38:17,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-12-02 11:38:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 11:38:17,466 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 11:38:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 11:38:17,467 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 11:38:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:38:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:38:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:38:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:38:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:38:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 11:38:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2024-12-02 11:38:17,467 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2024-12-02 11:38:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 11:38:17,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 11:38:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-12-02 11:38:17,467 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-12-02 11:38:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-12-02 11:38:17,468 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-12-02 11:38:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2024-12-02 11:38:17,468 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2024-12-02 11:38:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-12-02 11:38:17,468 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-12-02 11:38:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:38:17,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:38:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:38:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:38:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:38:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:38:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:38:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:38:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-12-02 11:38:17,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-12-02 11:38:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 11:38:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-12-02 11:38:17,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-12-02 11:38:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:38:17,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:38:17,678 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:38:17,679 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:38:17,733 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 11:38:25,289 INFO L? ?]: Removed 323 outVars from TransFormulas that were not future-live. [2024-12-02 11:38:25,290 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:38:25,306 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:38:25,306 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:38:25,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:38:25 BoogieIcfgContainer [2024-12-02 11:38:25,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:38:25,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:38:25,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:38:25,313 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:38:25,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:38:16" (1/3) ... [2024-12-02 11:38:25,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359bce4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:38:25, skipping insertion in model container [2024-12-02 11:38:25,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:17" (2/3) ... [2024-12-02 11:38:25,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359bce4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:38:25, skipping insertion in model container [2024-12-02 11:38:25,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:38:25" (3/3) ... [2024-12-02 11:38:25,315 INFO L128 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-12-02 11:38:25,329 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:38:25,330 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i that has 22 procedures, 341 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 11:38:25,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:38:25,393 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;@282c88cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:38:25,393 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:38:25,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 340 states, 255 states have (on average 1.3725490196078431) internal successors, (350), 260 states have internal predecessors, (350), 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) [2024-12-02 11:38:25,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 11:38:25,406 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:25,407 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] [2024-12-02 11:38:25,407 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:25,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:25,411 INFO L85 PathProgramCache]: Analyzing trace with hash -589499357, now seen corresponding path program 1 times [2024-12-02 11:38:25,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:25,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765595149] [2024-12-02 11:38:25,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:25,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:45,813 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 11:38:45,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:45,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765595149] [2024-12-02 11:38:45,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765595149] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:45,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:45,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:38:45,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866510809] [2024-12-02 11:38:45,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:45,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:38:45,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:45,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:38:45,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:38:45,841 INFO L87 Difference]: Start difference. First operand has 340 states, 255 states have (on average 1.3725490196078431) internal successors, (350), 260 states have internal predecessors, (350), 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 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 11:38:45,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:45,892 INFO L93 Difference]: Finished difference Result 675 states and 959 transitions. [2024-12-02 11:38:45,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:38:45,894 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (11), 2 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 [2024-12-02 11:38:45,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:45,902 INFO L225 Difference]: With dead ends: 675 [2024-12-02 11:38:45,902 INFO L226 Difference]: Without dead ends: 316 [2024-12-02 11:38:45,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:38:45,909 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:38:45,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:38:45,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-12-02 11:38:45,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2024-12-02 11:38:45,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 238 states have (on average 1.3487394957983194) internal successors, (321), 238 states have internal predecessors, (321), 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) [2024-12-02 11:38:45,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 436 transitions. [2024-12-02 11:38:45,962 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 436 transitions. Word has length 77 [2024-12-02 11:38:45,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:45,963 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 436 transitions. [2024-12-02 11:38:45,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 11:38:45,963 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 436 transitions. [2024-12-02 11:38:45,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:38:45,966 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:45,967 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] [2024-12-02 11:38:45,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:38:45,967 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:45,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:45,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1062015834, now seen corresponding path program 1 times [2024-12-02 11:38:45,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:45,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015682892] [2024-12-02 11:38:45,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:45,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 11:39:06,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:06,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015682892] [2024-12-02 11:39:06,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015682892] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:06,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:39:06,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:39:06,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690715274] [2024-12-02 11:39:06,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:06,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:39:06,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:06,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:39:06,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:06,378 INFO L87 Difference]: Start difference. First operand 316 states and 436 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 11:39:06,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:06,852 INFO L93 Difference]: Finished difference Result 699 states and 991 transitions. [2024-12-02 11:39:06,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:39:06,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (11), 2 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 [2024-12-02 11:39:06,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:06,857 INFO L225 Difference]: With dead ends: 699 [2024-12-02 11:39:06,857 INFO L226 Difference]: Without dead ends: 397 [2024-12-02 11:39:06,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:06,859 INFO L435 NwaCegarLoop]: 446 mSDtfsCounter, 80 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:06,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 838 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:39:06,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-12-02 11:39:06,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 377. [2024-12-02 11:39:06,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 289 states have (on average 1.356401384083045) internal successors, (392), 289 states have internal predecessors, (392), 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) [2024-12-02 11:39:06,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 527 transitions. [2024-12-02 11:39:06,884 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 527 transitions. Word has length 79 [2024-12-02 11:39:06,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:06,885 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 527 transitions. [2024-12-02 11:39:06,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 11:39:06,885 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 527 transitions. [2024-12-02 11:39:06,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:39:06,888 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:06,888 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] [2024-12-02 11:39:06,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:39:06,889 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:06,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:06,889 INFO L85 PathProgramCache]: Analyzing trace with hash -902279947, now seen corresponding path program 1 times [2024-12-02 11:39:06,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:06,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820754979] [2024-12-02 11:39:06,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:06,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:26,485 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 11:39:26,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:26,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820754979] [2024-12-02 11:39:26,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820754979] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:26,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:39:26,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:39:26,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648743859] [2024-12-02 11:39:26,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:26,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:39:26,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:26,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:39:26,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:26,487 INFO L87 Difference]: Start difference. First operand 377 states and 527 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:39:26,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:26,639 INFO L93 Difference]: Finished difference Result 1036 states and 1450 transitions. [2024-12-02 11:39:26,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:39:26,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 95 [2024-12-02 11:39:26,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:26,644 INFO L225 Difference]: With dead ends: 1036 [2024-12-02 11:39:26,644 INFO L226 Difference]: Without dead ends: 673 [2024-12-02 11:39:26,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:39:26,646 INFO L435 NwaCegarLoop]: 440 mSDtfsCounter, 333 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:26,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 850 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:39:26,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-12-02 11:39:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 670. [2024-12-02 11:39:26,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 520 states have (on average 1.3653846153846154) internal successors, (710), 520 states have internal predecessors, (710), 114 states have call successors, (114), 36 states have call predecessors, (114), 35 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-12-02 11:39:26,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 937 transitions. [2024-12-02 11:39:26,681 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 937 transitions. Word has length 95 [2024-12-02 11:39:26,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:26,682 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 937 transitions. [2024-12-02 11:39:26,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:39:26,682 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 937 transitions. [2024-12-02 11:39:26,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:39:26,684 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:26,684 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:39:26,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:39:26,684 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:26,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:26,685 INFO L85 PathProgramCache]: Analyzing trace with hash 2141841030, now seen corresponding path program 1 times [2024-12-02 11:39:26,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:26,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488685131] [2024-12-02 11:39:26,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:26,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:46,665 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 11:39:46,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:46,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488685131] [2024-12-02 11:39:46,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488685131] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:39:46,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184146681] [2024-12-02 11:39:46,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:46,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:39:46,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:46,670 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:39:46,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:40:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:06,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 2834 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:40:06,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:40:07,016 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 11:40:07,017 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:40:07,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184146681] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:07,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:40:07,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 11:40:07,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962976256] [2024-12-02 11:40:07,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:07,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:07,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:07,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:07,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:40:07,019 INFO L87 Difference]: Start difference. First operand 670 states and 937 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 11:40:07,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:07,094 INFO L93 Difference]: Finished difference Result 675 states and 943 transitions. [2024-12-02 11:40:07,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:07,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 95 [2024-12-02 11:40:07,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:07,099 INFO L225 Difference]: With dead ends: 675 [2024-12-02 11:40:07,100 INFO L226 Difference]: Without dead ends: 672 [2024-12-02 11:40:07,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:40:07,101 INFO L435 NwaCegarLoop]: 435 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:07,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 864 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:40:07,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-12-02 11:40:07,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2024-12-02 11:40:07,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 522 states have (on average 1.3639846743295019) internal successors, (712), 522 states have internal predecessors, (712), 114 states have call successors, (114), 36 states have call predecessors, (114), 35 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-12-02 11:40:07,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 939 transitions. [2024-12-02 11:40:07,132 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 939 transitions. Word has length 95 [2024-12-02 11:40:07,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:07,132 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 939 transitions. [2024-12-02 11:40:07,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 11:40:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 939 transitions. [2024-12-02 11:40:07,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 11:40:07,135 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:07,135 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:07,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:40:07,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:40:07,335 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:07,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:07,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1040799258, now seen corresponding path program 1 times [2024-12-02 11:40:07,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:07,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627505497] [2024-12-02 11:40:07,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:07,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:27,315 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 11:40:27,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:27,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627505497] [2024-12-02 11:40:27,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627505497] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:40:27,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502032261] [2024-12-02 11:40:27,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:27,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:40:27,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:40:27,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:40:27,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:40:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:47,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 2839 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:40:47,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:40:47,560 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 11:40:47,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:40:47,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502032261] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:47,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:40:47,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2024-12-02 11:40:47,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799067996] [2024-12-02 11:40:47,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:47,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:47,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:47,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:47,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:40:47,561 INFO L87 Difference]: Start difference. First operand 672 states and 939 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 11:40:48,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:48,055 INFO L93 Difference]: Finished difference Result 1536 states and 2191 transitions. [2024-12-02 11:40:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:48,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-12-02 11:40:48,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:48,063 INFO L225 Difference]: With dead ends: 1536 [2024-12-02 11:40:48,063 INFO L226 Difference]: Without dead ends: 878 [2024-12-02 11:40:48,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:40:48,065 INFO L435 NwaCegarLoop]: 397 mSDtfsCounter, 124 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:48,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 785 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:40:48,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-12-02 11:40:48,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 788. [2024-12-02 11:40:48,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 624 states have (on average 1.3878205128205128) internal successors, (866), 624 states have internal predecessors, (866), 128 states have call successors, (128), 36 states have call predecessors, (128), 35 states have return successors, (127), 127 states have call predecessors, (127), 127 states have call successors, (127) [2024-12-02 11:40:48,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1121 transitions. [2024-12-02 11:40:48,096 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1121 transitions. Word has length 97 [2024-12-02 11:40:48,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:48,096 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 1121 transitions. [2024-12-02 11:40:48,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 11:40:48,097 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1121 transitions. [2024-12-02 11:40:48,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 11:40:48,098 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:48,098 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:48,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:40:48,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:40:48,299 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:48,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:48,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1749794900, now seen corresponding path program 1 times [2024-12-02 11:40:48,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:48,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851557408] [2024-12-02 11:40:48,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:48,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:08,274 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-02 11:41:08,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:08,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851557408] [2024-12-02 11:41:08,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851557408] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:08,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324838907] [2024-12-02 11:41:08,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:08,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:41:08,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:41:08,276 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:41:08,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:41:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:28,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 3028 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:41:28,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 11:41:29,979 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:29,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324838907] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:29,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:41:29,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-12-02 11:41:29,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752629627] [2024-12-02 11:41:29,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:29,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:41:29,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:29,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:41:29,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:41:29,981 INFO L87 Difference]: Start difference. First operand 788 states and 1121 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 11:41:30,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:30,093 INFO L93 Difference]: Finished difference Result 1549 states and 2219 transitions. [2024-12-02 11:41:30,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:41:30,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-12-02 11:41:30,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:30,094 INFO L225 Difference]: With dead ends: 1549 [2024-12-02 11:41:30,094 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 11:41:30,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:41:30,097 INFO L435 NwaCegarLoop]: 423 mSDtfsCounter, 354 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:30,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 845 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:30,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 11:41:30,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 11:41:30,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:41:30,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 11:41:30,098 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2024-12-02 11:41:30,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:30,098 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 11:41:30,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 11:41:30,098 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 11:41:30,098 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 11:41:30,100 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:41:30,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 11:41:30,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:41:30,302 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 11:41:30,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 11:41:34,930 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:41:34,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:41:34 BoogieIcfgContainer [2024-12-02 11:41:34,941 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:41:34,941 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:41:34,941 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:41:34,941 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:41:34,942 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:38:25" (3/4) ... [2024-12-02 11:41:34,943 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 11:41:34,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __list_add [2024-12-02 11:41:34,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure outb [2024-12-02 11:41:34,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __release_region [2024-12-02 11:41:34,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2024-12-02 11:41:34,947 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pnp_get_resource [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_allocate_port [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure msleep [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pnp_resource_valid [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __request_region [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_set_name [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_free_port [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure inb [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_set_phys [2024-12-02 11:41:34,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __gameport_register_port [2024-12-02 11:41:34,957 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-12-02 11:41:34,958 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-12-02 11:41:34,959 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 11:41:34,960 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 11:41:34,960 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 11:41:35,130 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 11:41:35,131 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 11:41:35,131 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:41:35,132 INFO L158 Benchmark]: Toolchain (without parser) took 198490.51ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 114.5MB in the beginning and 573.1MB in the end (delta: -458.6MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-12-02 11:41:35,132 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:41:35,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.25ms. Allocated memory is still 142.6MB. Free memory was 114.5MB in the beginning and 69.5MB in the end (delta: 44.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-12-02 11:41:35,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.69ms. Allocated memory is still 142.6MB. Free memory was 69.3MB in the beginning and 61.8MB in the end (delta: 7.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:41:35,132 INFO L158 Benchmark]: Boogie Preprocessor took 133.32ms. Allocated memory is still 142.6MB. Free memory was 61.8MB in the beginning and 105.8MB in the end (delta: -43.9MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-12-02 11:41:35,133 INFO L158 Benchmark]: RCFGBuilder took 7887.51ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 105.8MB in the beginning and 103.0MB in the end (delta: 2.8MB). Peak memory consumption was 177.8MB. Max. memory is 16.1GB. [2024-12-02 11:41:35,133 INFO L158 Benchmark]: TraceAbstraction took 189632.15ms. Allocated memory was 293.6MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 103.0MB in the beginning and 602.2MB in the end (delta: -499.3MB). Peak memory consumption was 866.5MB. Max. memory is 16.1GB. [2024-12-02 11:41:35,133 INFO L158 Benchmark]: Witness Printer took 189.54ms. Allocated memory is still 1.7GB. Free memory was 602.2MB in the beginning and 573.1MB in the end (delta: 29.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 11:41:35,135 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.25ms. Allocated memory is still 142.6MB. Free memory was 114.5MB in the beginning and 69.5MB in the end (delta: 44.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.69ms. Allocated memory is still 142.6MB. Free memory was 69.3MB in the beginning and 61.8MB in the end (delta: 7.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 133.32ms. Allocated memory is still 142.6MB. Free memory was 61.8MB in the beginning and 105.8MB in the end (delta: -43.9MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * RCFGBuilder took 7887.51ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 105.8MB in the beginning and 103.0MB in the end (delta: 2.8MB). Peak memory consumption was 177.8MB. Max. memory is 16.1GB. * TraceAbstraction took 189632.15ms. Allocated memory was 293.6MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 103.0MB in the beginning and 602.2MB in the end (delta: -499.3MB). Peak memory consumption was 866.5MB. Max. memory is 16.1GB. * Witness Printer took 189.54ms. Allocated memory is still 1.7GB. Free memory was 602.2MB in the beginning and 573.1MB in the end (delta: 29.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 1449]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [1449] - GenericResultAtLocation [Line: 1457]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [1457] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1533]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 341 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 184.9s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 922 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 891 mSDsluCounter, 4649 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2041 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 2608 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 322 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=788occurred in iteration=5, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 113 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 853 NumberOfCodeBlocks, 853 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 844 ConstructedInterpolants, 0 QuantifiedInterpolants, 1100 SizeOfPredicates, 1 NumberOfNonLiveVariables, 8701 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 335/339 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1693]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 1693]: Location Invariant Derived location invariant: (ldv_spin == 0) RESULT: Ultimate proved your program to be correct! [2024-12-02 11:41:35,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b652a5d4-85e7-4ea0-a557-b20f29096bf4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE