./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_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/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_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB --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 [2024-11-27 19:50:37,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:50:37,160 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 19:50:37,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:50:37,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:50:37,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:50:37,211 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:50:37,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:50:37,212 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:50:37,212 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:50:37,213 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:50:37,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:50:37,214 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:50:37,215 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:50:37,215 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:50:37,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:50:37,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:50:37,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:50:37,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:50:37,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:50:37,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:50:37,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:50:37,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:50:37,217 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:50:37,217 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:50:37,217 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:50:37,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:37,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:37,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:37,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:37,219 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:50:37,219 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:37,219 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:37,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:37,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:37,220 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:50:37,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:50:37,220 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:50:37,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:50:37,220 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:50:37,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:50:37,220 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:50:37,221 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:50:37,221 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:50:37,221 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:50:37,221 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_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcd76f3400222a7434b370a764d7267d42d60812577a6e3d633d4f9c70f9f427 [2024-11-27 19:50:37,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:50:37,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:50:37,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:50:37,566 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:50:37,566 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:50:37,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-11-27 19:50:40,436 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/data/344179a1e/34cf3ee86dd548dbac7fc71bffebda37/FLAG16b6c864f [2024-11-27 19:50:40,905 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:50:40,907 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-11-27 19:50:40,938 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/data/344179a1e/34cf3ee86dd548dbac7fc71bffebda37/FLAG16b6c864f [2024-11-27 19:50:40,963 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/data/344179a1e/34cf3ee86dd548dbac7fc71bffebda37 [2024-11-27 19:50:40,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:50:40,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:50:40,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:40,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:50:40,980 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:50:40,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:40" (1/1) ... [2024-11-27 19:50:40,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af4090c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:40, skipping insertion in model container [2024-11-27 19:50:40,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:40" (1/1) ... [2024-11-27 19:50:41,048 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:50:41,448 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2024-11-27 19:50:41,449 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] [2024-11-27 19:50:41,559 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_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i[42973,42986] [2024-11-27 19:50:41,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:41,841 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:50:41,943 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2024-11-27 19:50:41,943 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] [2024-11-27 19:50:41,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [1449] [2024-11-27 19:50:41,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [1457] [2024-11-27 19:50:41,969 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_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i[42973,42986] [2024-11-27 19:50:42,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:42,109 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:50:42,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42 WrapperNode [2024-11-27 19:50:42,112 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:42,113 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:42,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:50:42,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:50:42,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,279 INFO L138 Inliner]: procedures = 79, calls = 395, calls flagged for inlining = 27, calls inlined = 25, statements flattened = 1071 [2024-11-27 19:50:42,280 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:42,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:50:42,280 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:50:42,281 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:50:42,291 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,301 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,367 INFO L175 MemorySlicer]: Split 284 memory accesses to 6 slices as follows [2, 25, 207, 5, 26, 19]. 73 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 0, 6, 0, 2, 0]. The 254 writes are split as follows [0, 25, 201, 0, 11, 17]. [2024-11-27 19:50:42,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,368 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,419 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:50:42,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:50:42,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:50:42,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:50:42,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (1/1) ... [2024-11-27 19:50:42,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:42,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:42,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:50:42,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:50:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-11-27 19:50:42,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-11-27 19:50:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:50:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2024-11-27 19:50:42,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2024-11-27 19:50:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-27 19:50:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-27 19:50:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-27 19:50:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-27 19:50:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-27 19:50:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-27 19:50:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 19:50:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 19:50:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 19:50:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 19:50:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-27 19:50:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-27 19:50:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-27 19:50:42,529 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-27 19:50:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2024-11-27 19:50:42,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2024-11-27 19:50:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2024-11-27 19:50:42,529 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2024-11-27 19:50:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-27 19:50:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-27 19:50:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-27 19:50:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-27 19:50:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-27 19:50:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-27 19:50:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-27 19:50:42,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-27 19:50:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 19:50:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 19:50:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 19:50:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 19:50:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 19:50:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 19:50:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2024-11-27 19:50:42,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2024-11-27 19:50:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 19:50:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 19:50:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 19:50:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 19:50:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-27 19:50:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-27 19:50:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2024-11-27 19:50:42,532 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2024-11-27 19:50:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-27 19:50:42,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-27 19:50:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 19:50:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-27 19:50:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-27 19:50:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-27 19:50:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-27 19:50:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-27 19:50:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-27 19:50:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-27 19:50:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-27 19:50:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-27 19:50:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-27 19:50:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-27 19:50:42,535 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-27 19:50:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 19:50:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 19:50:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 19:50:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 19:50:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 19:50:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 19:50:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2024-11-27 19:50:42,535 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2024-11-27 19:50:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-27 19:50:42,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-27 19:50:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-27 19:50:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-27 19:50:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-27 19:50:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-27 19:50:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2024-11-27 19:50:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2024-11-27 19:50:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-27 19:50:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-27 19:50:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:50:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:50:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:50:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 19:50:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 19:50:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 19:50:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 19:50:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 19:50:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-27 19:50:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-27 19:50:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 19:50:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-27 19:50:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-27 19:50:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:50:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:50:42,863 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:50:42,866 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:50:42,949 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-27 19:50:51,685 INFO L? ?]: Removed 323 outVars from TransFormulas that were not future-live. [2024-11-27 19:50:51,685 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:50:51,712 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:50:51,716 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 19:50:51,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:51 BoogieIcfgContainer [2024-11-27 19:50:51,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:50:51,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:50:51,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:50:51,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:50:51,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:50:40" (1/3) ... [2024-11-27 19:50:51,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d3a3df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:51, skipping insertion in model container [2024-11-27 19:50:51,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:42" (2/3) ... [2024-11-27 19:50:51,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d3a3df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:51, skipping insertion in model container [2024-11-27 19:50:51,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:51" (3/3) ... [2024-11-27 19:50:51,730 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 [2024-11-27 19:50:51,745 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:50:51,747 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. [2024-11-27 19:50:51,828 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:50:51,841 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;@306fd0c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:50:51,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:50:51,847 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) [2024-11-27 19:50:51,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-27 19:50:51,864 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:51,865 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:51,866 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:51,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash -589499357, now seen corresponding path program 1 times [2024-11-27 19:50:51,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:51,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577871283] [2024-11-27 19:50:51,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:51,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:17,001 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 19:51:17,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:17,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577871283] [2024-11-27 19:51:17,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577871283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:17,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:17,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:51:17,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238779554] [2024-11-27 19:51:17,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:17,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:51:17,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:17,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:51:17,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:51:17,038 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) [2024-11-27 19:51:17,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:17,130 INFO L93 Difference]: Finished difference Result 675 states and 959 transitions. [2024-11-27 19:51:17,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:51:17,134 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 [2024-11-27 19:51:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:17,146 INFO L225 Difference]: With dead ends: 675 [2024-11-27 19:51:17,147 INFO L226 Difference]: Without dead ends: 316 [2024-11-27 19:51:17,153 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 [2024-11-27 19:51:17,157 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 [2024-11-27 19:51:17,158 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] [2024-11-27 19:51:17,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-27 19:51:17,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2024-11-27 19:51:17,234 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) [2024-11-27 19:51:17,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 436 transitions. [2024-11-27 19:51:17,247 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 436 transitions. Word has length 77 [2024-11-27 19:51:17,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:17,248 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 436 transitions. [2024-11-27 19:51:17,248 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) [2024-11-27 19:51:17,249 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 436 transitions. [2024-11-27 19:51:17,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-27 19:51:17,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:17,253 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:17,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:51:17,254 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:17,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:17,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1062015834, now seen corresponding path program 1 times [2024-11-27 19:51:17,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:17,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420732746] [2024-11-27 19:51:17,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:17,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 19:51:41,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:41,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420732746] [2024-11-27 19:51:41,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420732746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:41,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:41,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:41,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849634957] [2024-11-27 19:51:41,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:41,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:41,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:41,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:41,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:41,165 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) [2024-11-27 19:51:41,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:41,832 INFO L93 Difference]: Finished difference Result 699 states and 991 transitions. [2024-11-27 19:51:41,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:41,835 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 [2024-11-27 19:51:41,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:41,839 INFO L225 Difference]: With dead ends: 699 [2024-11-27 19:51:41,839 INFO L226 Difference]: Without dead ends: 397 [2024-11-27 19:51:41,842 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 [2024-11-27 19:51:41,843 INFO L435 NwaCegarLoop]: 446 mSDtfsCounter, 80 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:41,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 838 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 19:51:41,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-27 19:51:41,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 377. [2024-11-27 19:51:41,871 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) [2024-11-27 19:51:41,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 527 transitions. [2024-11-27 19:51:41,877 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 527 transitions. Word has length 79 [2024-11-27 19:51:41,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:41,878 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 527 transitions. [2024-11-27 19:51:41,878 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) [2024-11-27 19:51:41,878 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 527 transitions. [2024-11-27 19:51:41,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-27 19:51:41,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:41,881 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:41,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:51:41,881 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:41,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:41,882 INFO L85 PathProgramCache]: Analyzing trace with hash -902279947, now seen corresponding path program 1 times [2024-11-27 19:51:41,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:41,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914660294] [2024-11-27 19:51:41,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:41,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-27 19:52:04,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:04,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914660294] [2024-11-27 19:52:04,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914660294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:04,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:52:04,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:52:04,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380534683] [2024-11-27 19:52:04,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:04,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:52:04,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:04,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:52:04,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:52:04,833 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) [2024-11-27 19:52:05,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:05,062 INFO L93 Difference]: Finished difference Result 1036 states and 1450 transitions. [2024-11-27 19:52:05,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:52:05,062 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 [2024-11-27 19:52:05,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:05,071 INFO L225 Difference]: With dead ends: 1036 [2024-11-27 19:52:05,071 INFO L226 Difference]: Without dead ends: 673 [2024-11-27 19:52:05,072 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 [2024-11-27 19:52:05,074 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:05,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 850 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:52:05,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-27 19:52:05,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 670. [2024-11-27 19:52:05,146 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) [2024-11-27 19:52:05,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 937 transitions. [2024-11-27 19:52:05,156 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 937 transitions. Word has length 95 [2024-11-27 19:52:05,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:05,156 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 937 transitions. [2024-11-27 19:52:05,156 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) [2024-11-27 19:52:05,156 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 937 transitions. [2024-11-27 19:52:05,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-27 19:52:05,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:05,160 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] [2024-11-27 19:52:05,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:52:05,161 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:52:05,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:05,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2141841030, now seen corresponding path program 1 times [2024-11-27 19:52:05,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:05,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755014806] [2024-11-27 19:52:05,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:05,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:27,628 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-27 19:52:27,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:27,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755014806] [2024-11-27 19:52:27,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755014806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:52:27,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321422522] [2024-11-27 19:52:27,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:27,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:27,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:52:27,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:52:27,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:52:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:51,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 2834 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:52:51,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:52:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-27 19:52:51,187 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:52:51,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321422522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:51,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:52:51,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-27 19:52:51,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2875696] [2024-11-27 19:52:51,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:51,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:52:51,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:51,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:52:51,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:52:51,191 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) [2024-11-27 19:52:51,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:51,296 INFO L93 Difference]: Finished difference Result 675 states and 943 transitions. [2024-11-27 19:52:51,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:52:51,299 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 [2024-11-27 19:52:51,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:51,309 INFO L225 Difference]: With dead ends: 675 [2024-11-27 19:52:51,309 INFO L226 Difference]: Without dead ends: 672 [2024-11-27 19:52:51,310 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 [2024-11-27 19:52:51,311 INFO L435 NwaCegarLoop]: 435 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2024-11-27 19:52:51,312 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] [2024-11-27 19:52:51,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-11-27 19:52:51,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2024-11-27 19:52:51,346 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) [2024-11-27 19:52:51,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 939 transitions. [2024-11-27 19:52:51,353 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 939 transitions. Word has length 95 [2024-11-27 19:52:51,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:51,354 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 939 transitions. [2024-11-27 19:52:51,355 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) [2024-11-27 19:52:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 939 transitions. [2024-11-27 19:52:51,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 19:52:51,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:51,358 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] [2024-11-27 19:52:51,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:52:51,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:51,559 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:52:51,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:51,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1040799258, now seen corresponding path program 1 times [2024-11-27 19:52:51,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:51,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38672007] [2024-11-27 19:52:51,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:51,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:15,061 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-27 19:53:15,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:15,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38672007] [2024-11-27 19:53:15,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38672007] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:53:15,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532088615] [2024-11-27 19:53:15,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:15,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:53:15,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:53:15,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:53:15,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:53:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:38,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 2839 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:53:38,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:53:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-27 19:53:38,680 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:53:38,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532088615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:38,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:53:38,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2024-11-27 19:53:38,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453535019] [2024-11-27 19:53:38,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:38,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:53:38,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:38,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:53:38,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:53:38,683 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) [2024-11-27 19:53:39,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:39,366 INFO L93 Difference]: Finished difference Result 1536 states and 2191 transitions. [2024-11-27 19:53:39,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:53:39,367 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 [2024-11-27 19:53:39,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:39,375 INFO L225 Difference]: With dead ends: 1536 [2024-11-27 19:53:39,376 INFO L226 Difference]: Without dead ends: 878 [2024-11-27 19:53:39,378 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 [2024-11-27 19:53:39,380 INFO L435 NwaCegarLoop]: 397 mSDtfsCounter, 124 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:39,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 785 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 19:53:39,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-11-27 19:53:39,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 788. [2024-11-27 19:53:39,429 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) [2024-11-27 19:53:39,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1121 transitions. [2024-11-27 19:53:39,436 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1121 transitions. Word has length 97 [2024-11-27 19:53:39,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:39,437 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 1121 transitions. [2024-11-27 19:53:39,437 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) [2024-11-27 19:53:39,438 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1121 transitions. [2024-11-27 19:53:39,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 19:53:39,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:39,440 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] [2024-11-27 19:53:39,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:53:39,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:53:39,641 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:39,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:39,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1749794900, now seen corresponding path program 1 times [2024-11-27 19:53:39,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:39,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268034111] [2024-11-27 19:53:39,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:39,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:03,117 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-27 19:54:03,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:03,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268034111] [2024-11-27 19:54:03,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268034111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:54:03,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020090727] [2024-11-27 19:54:03,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:03,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:54:03,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:54:03,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:54:03,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:54:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:27,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 3028 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:54:27,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:54:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-27 19:54:28,630 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:54:28,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020090727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:28,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:54:28,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-27 19:54:28,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457656644] [2024-11-27 19:54:28,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:28,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:54:28,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:28,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:54:28,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:54:28,633 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) [2024-11-27 19:54:28,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:28,782 INFO L93 Difference]: Finished difference Result 1549 states and 2219 transitions. [2024-11-27 19:54:28,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:54:28,789 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 [2024-11-27 19:54:28,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:28,791 INFO L225 Difference]: With dead ends: 1549 [2024-11-27 19:54:28,791 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 19:54:28,796 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 [2024-11-27 19:54:28,797 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 [2024-11-27 19:54:28,798 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] [2024-11-27 19:54:28,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 19:54:28,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 19:54:28,798 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) [2024-11-27 19:54:28,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 19:54:28,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2024-11-27 19:54:28,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:28,803 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 19:54:28,803 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) [2024-11-27 19:54:28,803 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 19:54:28,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 19:54:28,806 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 19:54:28,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 19:54:29,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-27 19:54:29,009 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-27 19:54:29,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 19:54:33,916 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 19:54:33,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 07:54:33 BoogieIcfgContainer [2024-11-27 19:54:33,936 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 19:54:33,937 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:54:33,937 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:54:33,937 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:54:33,938 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:51" (3/4) ... [2024-11-27 19:54:33,941 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 19:54:33,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __list_add [2024-11-27 19:54:33,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure outb [2024-11-27 19:54:33,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __release_region [2024-11-27 19:54:33,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2024-11-27 19:54:33,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pnp_get_resource [2024-11-27 19:54:33,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-27 19:54:33,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-27 19:54:33,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_allocate_port [2024-11-27 19:54:33,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure msleep [2024-11-27 19:54:33,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pnp_resource_valid [2024-11-27 19:54:33,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __request_region [2024-11-27 19:54:33,950 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_set_name [2024-11-27 19:54:33,950 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_free_port [2024-11-27 19:54:33,950 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-27 19:54:33,950 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-27 19:54:33,950 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2024-11-27 19:54:33,950 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2024-11-27 19:54:33,950 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-11-27 19:54:33,951 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure inb [2024-11-27 19:54:33,951 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_set_phys [2024-11-27 19:54:33,951 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __gameport_register_port [2024-11-27 19:54:33,985 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-11-27 19:54:33,986 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-27 19:54:33,989 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-27 19:54:33,990 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-27 19:54:33,992 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 19:54:34,333 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 19:54:34,333 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 19:54:34,333 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:54:34,338 INFO L158 Benchmark]: Toolchain (without parser) took 233367.06ms. Allocated memory was 117.4MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 89.9MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 354.2MB. Max. memory is 16.1GB. [2024-11-27 19:54:34,338 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:54:34,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1142.63ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 44.5MB in the end (delta: 45.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-27 19:54:34,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 166.49ms. Allocated memory is still 117.4MB. Free memory was 44.5MB in the beginning and 86.6MB in the end (delta: -42.1MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2024-11-27 19:54:34,339 INFO L158 Benchmark]: Boogie Preprocessor took 177.97ms. Allocated memory is still 117.4MB. Free memory was 86.6MB in the beginning and 75.1MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:54:34,340 INFO L158 Benchmark]: RCFGBuilder took 9257.75ms. Allocated memory was 117.4MB in the beginning and 327.2MB in the end (delta: 209.7MB). Free memory was 75.1MB in the beginning and 232.4MB in the end (delta: -157.2MB). Peak memory consumption was 184.8MB. Max. memory is 16.1GB. [2024-11-27 19:54:34,341 INFO L158 Benchmark]: TraceAbstraction took 222217.49ms. Allocated memory was 327.2MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 232.4MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 253.2MB. Max. memory is 16.1GB. [2024-11-27 19:54:34,341 INFO L158 Benchmark]: Witness Printer took 396.43ms. Allocated memory is still 2.1GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 29.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-27 19:54:34,344 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1142.63ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 44.5MB in the end (delta: 45.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 166.49ms. Allocated memory is still 117.4MB. Free memory was 44.5MB in the beginning and 86.6MB in the end (delta: -42.1MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 177.97ms. Allocated memory is still 117.4MB. Free memory was 86.6MB in the beginning and 75.1MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 9257.75ms. Allocated memory was 117.4MB in the beginning and 327.2MB in the end (delta: 209.7MB). Free memory was 75.1MB in the beginning and 232.4MB in the end (delta: -157.2MB). Peak memory consumption was 184.8MB. Max. memory is 16.1GB. * TraceAbstraction took 222217.49ms. Allocated memory was 327.2MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 232.4MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 253.2MB. Max. memory is 16.1GB. * Witness Printer took 396.43ms. Allocated memory is still 2.1GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 29.3MB). Peak memory consumption was 33.6MB. 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: 217.2s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 922 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 891 mSDsluCounter, 4649 SdHoareTripleChecker+Invalid, 1.4s 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, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 322 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s 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: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 113 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 6.1s 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! [2024-11-27 19:54:34,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0891f02-8f0f-4e1c-b3a1-4fddda5d0a39/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE