./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 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/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_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC --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-6497de0 [2024-11-24 01:00:28,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:00:28,846 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 01:00:28,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:00:28,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:00:28,872 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:00:28,873 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:00:28,873 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:00:28,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:00:28,874 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:00:28,874 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:00:28,874 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:00:28,874 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:00:28,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:00:28,875 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:00:28,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:00:28,875 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:00:28,875 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:00:28,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:00:28,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:00:28,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:00:28,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:00:28,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:00:28,876 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:00:28,876 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:00:28,876 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:00:28,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:00:28,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:00:28,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:00:28,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:00:28,877 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:00:28,877 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:00:28,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:00:28,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:00:28,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:00:28,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:00:28,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:00:28,878 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:00:28,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:00:28,878 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:00:28,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:00:28,879 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:00:28,879 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:00:28,879 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:00:28,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:00:28,879 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_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC 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 [2024-11-24 01:00:29,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:00:29,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:00:29,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:00:29,210 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:00:29,211 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:00:29,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-11-24 01:00:32,251 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/data/3f53f74de/9c3e0cb377464253a1c16a2a1253d1cd/FLAG55d2211fd [2024-11-24 01:00:32,634 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:00:32,635 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2024-11-24 01:00:32,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/data/3f53f74de/9c3e0cb377464253a1c16a2a1253d1cd/FLAG55d2211fd [2024-11-24 01:00:32,672 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/data/3f53f74de/9c3e0cb377464253a1c16a2a1253d1cd [2024-11-24 01:00:32,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:00:32,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:00:32,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:00:32,678 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:00:32,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:00:32,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:00:32" (1/1) ... [2024-11-24 01:00:32,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e409416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:32, skipping insertion in model container [2024-11-24 01:00:32,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:00:32" (1/1) ... [2024-11-24 01:00:32,759 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:00:33,174 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2024-11-24 01:00:33,174 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] [2024-11-24 01:00:33,280 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_04b9d58e-bb82-4db2-875b-12dcf350f786/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] [2024-11-24 01:00:33,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:00:33,490 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:00:33,559 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2024-11-24 01:00:33,559 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] [2024-11-24 01:00:33,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [1449] [2024-11-24 01:00:33,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [1457] [2024-11-24 01:00:33,574 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_04b9d58e-bb82-4db2-875b-12dcf350f786/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] [2024-11-24 01:00:33,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:00:33,718 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:00:33,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33 WrapperNode [2024-11-24 01:00:33,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:00:33,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:00:33,724 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:00:33,725 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:00:33,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:33,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:33,883 INFO L138 Inliner]: procedures = 79, calls = 395, calls flagged for inlining = 27, calls inlined = 25, statements flattened = 1071 [2024-11-24 01:00:33,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:00:33,885 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:00:33,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:00:33,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:00:33,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:33,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:33,922 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:33,986 INFO L175 MemorySlicer]: Split 284 memory accesses to 6 slices as follows [5, 207, 2, 25, 26, 19]. 73 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [0, 6, 2, 0, 2, 0]. The 254 writes are split as follows [0, 201, 0, 25, 11, 17]. [2024-11-24 01:00:33,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:33,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:34,018 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:34,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:34,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:34,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:34,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:34,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:00:34,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:00:34,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:00:34,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:00:34,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (1/1) ... [2024-11-24 01:00:34,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:00:34,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:00:34,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:00:34,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:00:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-11-24 01:00:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-11-24 01:00:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:00:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2024-11-24 01:00:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2024-11-24 01:00:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 01:00:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 01:00:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 01:00:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 01:00:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 01:00:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 01:00:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 01:00:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 01:00:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 01:00:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 01:00:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 01:00:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 01:00:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-24 01:00:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-24 01:00:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2024-11-24 01:00:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2024-11-24 01:00:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2024-11-24 01:00:34,152 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2024-11-24 01:00:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 01:00:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 01:00:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 01:00:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 01:00:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 01:00:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 01:00:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 01:00:34,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 01:00:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:00:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:00:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:00:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:00:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:00:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:00:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2024-11-24 01:00:34,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2024-11-24 01:00:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 01:00:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 01:00:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 01:00:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 01:00:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 01:00:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 01:00:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2024-11-24 01:00:34,154 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2024-11-24 01:00:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 01:00:34,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 01:00:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:00:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 01:00:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 01:00:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 01:00:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 01:00:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 01:00:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 01:00:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-24 01:00:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-24 01:00:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-24 01:00:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-24 01:00:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-24 01:00:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-24 01:00:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:00:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:00:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:00:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:00:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:00:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:00:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2024-11-24 01:00:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2024-11-24 01:00:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-24 01:00:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-24 01:00:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-24 01:00:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-24 01:00:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-24 01:00:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-24 01:00:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2024-11-24 01:00:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2024-11-24 01:00:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-24 01:00:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-24 01:00:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:00:34,158 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:00:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:00:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:00:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:00:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:00:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:00:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:00:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-24 01:00:34,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-24 01:00:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:00:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-24 01:00:34,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-24 01:00:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:00:34,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:00:34,477 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:00:34,480 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:00:34,564 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 01:00:43,832 INFO L? ?]: Removed 323 outVars from TransFormulas that were not future-live. [2024-11-24 01:00:43,832 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:00:43,852 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:00:43,852 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 01:00:43,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:00:43 BoogieIcfgContainer [2024-11-24 01:00:43,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:00:43,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:00:43,855 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:00:43,861 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:00:43,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:00:32" (1/3) ... [2024-11-24 01:00:43,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679afe65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:00:43, skipping insertion in model container [2024-11-24 01:00:43,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:00:33" (2/3) ... [2024-11-24 01:00:43,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679afe65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:00:43, skipping insertion in model container [2024-11-24 01:00:43,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:00:43" (3/3) ... [2024-11-24 01:00:43,866 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 [2024-11-24 01:00:43,885 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:00:43,890 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. [2024-11-24 01:00:43,987 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:00:44,007 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;@1a62df6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:00:44,007 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:00:44,013 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) [2024-11-24 01:00:44,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 01:00:44,027 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:00:44,028 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] [2024-11-24 01:00:44,029 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:00:44,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:00:44,037 INFO L85 PathProgramCache]: Analyzing trace with hash -589499357, now seen corresponding path program 1 times [2024-11-24 01:00:44,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:00:44,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758836598] [2024-11-24 01:00:44,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:00:44,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:11,882 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 01:01:11,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:11,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758836598] [2024-11-24 01:01:11,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758836598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:11,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:11,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:01:11,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826288783] [2024-11-24 01:01:11,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:11,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:01:11,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:11,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:01:11,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:01:11,930 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) [2024-11-24 01:01:12,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:12,051 INFO L93 Difference]: Finished difference Result 675 states and 959 transitions. [2024-11-24 01:01:12,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:01:12,058 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 [2024-11-24 01:01:12,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:12,076 INFO L225 Difference]: With dead ends: 675 [2024-11-24 01:01:12,077 INFO L226 Difference]: Without dead ends: 316 [2024-11-24 01:01:12,086 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 [2024-11-24 01:01:12,096 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 [2024-11-24 01:01:12,097 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] [2024-11-24 01:01:12,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-24 01:01:12,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2024-11-24 01:01:12,194 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) [2024-11-24 01:01:12,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 436 transitions. [2024-11-24 01:01:12,210 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 436 transitions. Word has length 77 [2024-11-24 01:01:12,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:12,212 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 436 transitions. [2024-11-24 01:01:12,214 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) [2024-11-24 01:01:12,214 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 436 transitions. [2024-11-24 01:01:12,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-24 01:01:12,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:12,221 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] [2024-11-24 01:01:12,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:01:12,221 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:12,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:12,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1062015834, now seen corresponding path program 1 times [2024-11-24 01:01:12,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:12,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307941991] [2024-11-24 01:01:12,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:12,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:39,107 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 01:01:39,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:39,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307941991] [2024-11-24 01:01:39,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307941991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:39,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:39,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:01:39,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146168271] [2024-11-24 01:01:39,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:39,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:01:39,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:39,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:01:39,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:01:39,112 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) [2024-11-24 01:01:39,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:39,837 INFO L93 Difference]: Finished difference Result 699 states and 991 transitions. [2024-11-24 01:01:39,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:01:39,838 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 [2024-11-24 01:01:39,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:39,846 INFO L225 Difference]: With dead ends: 699 [2024-11-24 01:01:39,846 INFO L226 Difference]: Without dead ends: 397 [2024-11-24 01:01:39,848 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 [2024-11-24 01:01:39,850 INFO L435 NwaCegarLoop]: 446 mSDtfsCounter, 80 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2024-11-24 01:01:39,850 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] [2024-11-24 01:01:39,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-24 01:01:39,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 377. [2024-11-24 01:01:39,884 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) [2024-11-24 01:01:39,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 527 transitions. [2024-11-24 01:01:39,894 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 527 transitions. Word has length 79 [2024-11-24 01:01:39,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:39,894 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 527 transitions. [2024-11-24 01:01:39,895 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) [2024-11-24 01:01:39,895 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 527 transitions. [2024-11-24 01:01:39,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:01:39,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:39,901 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] [2024-11-24 01:01:39,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:01:39,901 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:39,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:39,905 INFO L85 PathProgramCache]: Analyzing trace with hash -902279947, now seen corresponding path program 1 times [2024-11-24 01:01:39,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:39,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961457015] [2024-11-24 01:01:39,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:39,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:05,841 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-24 01:02:05,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:05,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961457015] [2024-11-24 01:02:05,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961457015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:05,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:05,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:02:05,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712591660] [2024-11-24 01:02:05,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:05,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:02:05,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:05,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:02:05,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:05,846 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) [2024-11-24 01:02:06,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:06,104 INFO L93 Difference]: Finished difference Result 1036 states and 1450 transitions. [2024-11-24 01:02:06,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:02:06,105 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 [2024-11-24 01:02:06,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:06,110 INFO L225 Difference]: With dead ends: 1036 [2024-11-24 01:02:06,111 INFO L226 Difference]: Without dead ends: 673 [2024-11-24 01:02:06,112 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 [2024-11-24 01:02:06,113 INFO L435 NwaCegarLoop]: 440 mSDtfsCounter, 333 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-11-24 01:02:06,114 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] [2024-11-24 01:02:06,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-24 01:02:06,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 670. [2024-11-24 01:02:06,163 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) [2024-11-24 01:02:06,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 937 transitions. [2024-11-24 01:02:06,180 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 937 transitions. Word has length 95 [2024-11-24 01:02:06,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:06,180 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 937 transitions. [2024-11-24 01:02:06,180 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) [2024-11-24 01:02:06,180 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 937 transitions. [2024-11-24 01:02:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 01:02:06,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:06,188 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] [2024-11-24 01:02:06,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:02:06,188 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:06,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:06,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2141841030, now seen corresponding path program 1 times [2024-11-24 01:02:06,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:06,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885281910] [2024-11-24 01:02:06,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:06,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:32,620 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-24 01:02:32,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:32,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885281910] [2024-11-24 01:02:32,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885281910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:02:32,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744224853] [2024-11-24 01:02:32,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:32,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:32,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:02:32,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:02:32,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:02:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:58,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 2834 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:02:59,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:02:59,090 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 01:02:59,090 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:02:59,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744224853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:59,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:02:59,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-24 01:02:59,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518730782] [2024-11-24 01:02:59,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:59,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:02:59,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:59,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:02:59,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:02:59,093 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) [2024-11-24 01:02:59,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:59,206 INFO L93 Difference]: Finished difference Result 675 states and 943 transitions. [2024-11-24 01:02:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:02:59,210 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 [2024-11-24 01:02:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:59,220 INFO L225 Difference]: With dead ends: 675 [2024-11-24 01:02:59,221 INFO L226 Difference]: Without dead ends: 672 [2024-11-24 01:02:59,221 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 [2024-11-24 01:02:59,225 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 [2024-11-24 01:02:59,225 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] [2024-11-24 01:02:59,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-11-24 01:02:59,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2024-11-24 01:02:59,265 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) [2024-11-24 01:02:59,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 939 transitions. [2024-11-24 01:02:59,272 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 939 transitions. Word has length 95 [2024-11-24 01:02:59,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:59,273 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 939 transitions. [2024-11-24 01:02:59,273 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) [2024-11-24 01:02:59,273 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 939 transitions. [2024-11-24 01:02:59,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 01:02:59,276 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:59,276 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] [2024-11-24 01:02:59,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:02:59,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:59,477 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:59,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:59,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1040799258, now seen corresponding path program 1 times [2024-11-24 01:02:59,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:59,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068393520] [2024-11-24 01:02:59,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:59,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-24 01:03:24,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:24,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068393520] [2024-11-24 01:03:24,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068393520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:03:24,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494021823] [2024-11-24 01:03:24,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:24,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:24,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:03:24,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:03:24,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:03:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:54,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 2839 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:03:54,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:03:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 01:03:54,534 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:03:54,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494021823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:54,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:03:54,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2024-11-24 01:03:54,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781576673] [2024-11-24 01:03:54,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:54,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:03:54,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:54,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:03:54,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:03:54,537 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) [2024-11-24 01:03:55,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:55,211 INFO L93 Difference]: Finished difference Result 1536 states and 2191 transitions. [2024-11-24 01:03:55,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:03:55,212 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 [2024-11-24 01:03:55,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:55,219 INFO L225 Difference]: With dead ends: 1536 [2024-11-24 01:03:55,219 INFO L226 Difference]: Without dead ends: 878 [2024-11-24 01:03:55,222 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 [2024-11-24 01:03:55,223 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 [2024-11-24 01:03:55,223 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] [2024-11-24 01:03:55,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-11-24 01:03:55,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 788. [2024-11-24 01:03:55,274 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) [2024-11-24 01:03:55,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1121 transitions. [2024-11-24 01:03:55,286 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1121 transitions. Word has length 97 [2024-11-24 01:03:55,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:55,287 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 1121 transitions. [2024-11-24 01:03:55,287 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) [2024-11-24 01:03:55,287 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1121 transitions. [2024-11-24 01:03:55,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 01:03:55,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:55,292 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] [2024-11-24 01:03:55,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:03:55,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:03:55,493 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:55,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:55,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1749794900, now seen corresponding path program 1 times [2024-11-24 01:03:55,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:55,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308850446] [2024-11-24 01:03:55,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:55,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:04:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:23,738 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-24 01:04:23,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:04:23,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308850446] [2024-11-24 01:04:23,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308850446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:04:23,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926470149] [2024-11-24 01:04:23,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:04:23,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:04:23,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:04:23,742 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:04:23,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:04:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:04:53,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 3028 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:04:53,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:04:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-24 01:04:54,489 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:04:54,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926470149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:04:54,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:04:54,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-24 01:04:54,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785022491] [2024-11-24 01:04:54,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:04:54,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:04:54,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:04:54,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:04:54,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:04:54,491 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) [2024-11-24 01:04:54,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:04:54,613 INFO L93 Difference]: Finished difference Result 1549 states and 2219 transitions. [2024-11-24 01:04:54,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:04:54,618 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 [2024-11-24 01:04:54,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:04:54,620 INFO L225 Difference]: With dead ends: 1549 [2024-11-24 01:04:54,620 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 01:04:54,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:04:54,626 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 [2024-11-24 01:04:54,626 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] [2024-11-24 01:04:54,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 01:04:54,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 01:04:54,631 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) [2024-11-24 01:04:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:04:54,632 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2024-11-24 01:04:54,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:04:54,632 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:04:54,632 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) [2024-11-24 01:04:54,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:04:54,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 01:04:54,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:04:54,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:04:54,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:04:54,838 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-24 01:04:54,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 01:04:59,949 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:04:59,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:04:59 BoogieIcfgContainer [2024-11-24 01:04:59,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:04:59,967 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:04:59,967 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:04:59,968 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:04:59,968 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:00:43" (3/4) ... [2024-11-24 01:04:59,971 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 01:04:59,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __list_add [2024-11-24 01:04:59,979 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure outb [2024-11-24 01:04:59,979 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __release_region [2024-11-24 01:04:59,979 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2024-11-24 01:04:59,979 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pnp_get_resource [2024-11-24 01:04:59,979 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-24 01:04:59,979 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 01:04:59,979 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_allocate_port [2024-11-24 01:04:59,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure msleep [2024-11-24 01:04:59,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pnp_resource_valid [2024-11-24 01:04:59,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __request_region [2024-11-24 01:04:59,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_set_name [2024-11-24 01:04:59,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_free_port [2024-11-24 01:04:59,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-24 01:04:59,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-24 01:04:59,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2024-11-24 01:04:59,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2024-11-24 01:04:59,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-11-24 01:04:59,981 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure inb [2024-11-24 01:04:59,981 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gameport_set_phys [2024-11-24 01:04:59,981 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __gameport_register_port [2024-11-24 01:05:00,005 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-11-24 01:05:00,007 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-24 01:05:00,008 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-24 01:05:00,011 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-24 01:05:00,012 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:05:00,318 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:05:00,318 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:05:00,318 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:05:00,320 INFO L158 Benchmark]: Toolchain (without parser) took 267643.19ms. Allocated memory was 117.4MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 90.0MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 547.3MB. Max. memory is 16.1GB. [2024-11-24 01:05:00,320 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:05:00,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1043.43ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 44.2MB in the end (delta: 45.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-24 01:05:00,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 162.43ms. Allocated memory is still 117.4MB. Free memory was 44.2MB in the beginning and 86.5MB in the end (delta: -42.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2024-11-24 01:05:00,321 INFO L158 Benchmark]: Boogie Preprocessor took 191.49ms. Allocated memory is still 117.4MB. Free memory was 86.5MB in the beginning and 74.8MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:05:00,324 INFO L158 Benchmark]: RCFGBuilder took 9774.54ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 74.8MB in the beginning and 79.4MB in the end (delta: -4.6MB). Peak memory consumption was 90.5MB. Max. memory is 16.1GB. [2024-11-24 01:05:00,325 INFO L158 Benchmark]: TraceAbstraction took 256111.67ms. Allocated memory was 159.4MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 77.5MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 462.7MB. Max. memory is 16.1GB. [2024-11-24 01:05:00,325 INFO L158 Benchmark]: Witness Printer took 351.14ms. Allocated memory is still 2.2GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 29.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 01:05:00,326 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1043.43ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 44.2MB in the end (delta: 45.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 162.43ms. Allocated memory is still 117.4MB. Free memory was 44.2MB in the beginning and 86.5MB in the end (delta: -42.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 191.49ms. Allocated memory is still 117.4MB. Free memory was 86.5MB in the beginning and 74.8MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 9774.54ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 74.8MB in the beginning and 79.4MB in the end (delta: -4.6MB). Peak memory consumption was 90.5MB. Max. memory is 16.1GB. * TraceAbstraction took 256111.67ms. Allocated memory was 159.4MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 77.5MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 462.7MB. Max. memory is 16.1GB. * Witness Printer took 351.14ms. Allocated memory is still 2.2GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 29.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 1449]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [1449] - GenericResultAtLocation [Line: 1457]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [1457] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1533]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 341 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 250.9s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 922 SdHoareTripleChecker+Valid, 1.6s 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, 0.8s 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: 0.8s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 6.7s 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! [2024-11-24 01:05:00,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b9d58e-bb82-4db2-875b-12dcf350f786/bin/uautomizer-verify-LYvppIcaGC/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