./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1d08dc08d1adbb7da804a516a83dc1dfdba0f9e1c9fbdcda9ca265322e9a6493 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:51:23,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:51:23,202 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:51:23,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:51:23,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:51:23,265 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:51:23,267 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:51:23,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:51:23,268 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:51:23,268 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:51:23,269 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:51:23,270 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:51:23,270 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:51:23,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:51:23,271 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:51:23,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:51:23,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:51:23,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:51:23,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:51:23,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:51:23,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:51:23,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:51:23,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:51:23,273 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:51:23,273 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:51:23,274 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:51:23,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:51:23,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:51:23,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:51:23,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:51:23,274 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:51:23,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:51:23,275 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:51:23,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:51:23,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:51:23,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:51:23,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:51:23,276 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:51:23,277 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:51:23,277 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:51:23,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:51:23,277 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:51:23,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:51:23,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:51:23,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:51:23,277 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_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d08dc08d1adbb7da804a516a83dc1dfdba0f9e1c9fbdcda9ca265322e9a6493 [2024-11-28 04:51:23,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:51:23,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:51:23,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:51:23,697 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:51:23,698 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:51:23,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2024-11-28 04:51:27,650 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/data/6bf3387ce/85d38c988fa2499799e8a1ad42f54acf/FLAG9a5e5b308 [2024-11-28 04:51:28,379 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:51:28,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2024-11-28 04:51:28,434 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/data/6bf3387ce/85d38c988fa2499799e8a1ad42f54acf/FLAG9a5e5b308 [2024-11-28 04:51:28,461 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/data/6bf3387ce/85d38c988fa2499799e8a1ad42f54acf [2024-11-28 04:51:28,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:51:28,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:51:28,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:51:28,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:51:28,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:51:28,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:51:28" (1/1) ... [2024-11-28 04:51:28,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@661b8e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:28, skipping insertion in model container [2024-11-28 04:51:28,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:51:28" (1/1) ... [2024-11-28 04:51:28,599 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:51:29,476 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_a9347c05-23f5-4e69-bd3a-884d1b774d02/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i[149288,149301] [2024-11-28 04:51:29,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:51:30,023 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:51:30,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5007] [2024-11-28 04:51:30,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5014] [2024-11-28 04:51:30,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5052] [2024-11-28 04:51:30,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5060] [2024-11-28 04:51:30,247 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_a9347c05-23f5-4e69-bd3a-884d1b774d02/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i[149288,149301] [2024-11-28 04:51:30,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:51:30,528 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:51:30,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30 WrapperNode [2024-11-28 04:51:30,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:51:30,532 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:51:30,532 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:51:30,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:51:30,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:30,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:30,710 INFO L138 Inliner]: procedures = 103, calls = 582, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 2031 [2024-11-28 04:51:30,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:51:30,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:51:30,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:51:30,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:51:30,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:30,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:30,743 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:30,935 INFO L175 MemorySlicer]: Split 281 memory accesses to 11 slices as follows [2, 2, 2, 143, 2, 18, 69, 10, 29, 2, 2]. 51 percent of accesses are in the largest equivalence class. The 188 initializations are split as follows [2, 2, 2, 143, 2, 16, 8, 9, 0, 2, 2]. The 31 writes are split as follows [0, 0, 0, 0, 0, 1, 20, 0, 10, 0, 0]. [2024-11-28 04:51:30,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:30,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:31,006 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:31,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:31,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:31,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:31,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:31,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:51:31,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:51:31,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:51:31,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:51:31,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (1/1) ... [2024-11-28 04:51:31,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:51:31,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:31,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:51:31,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:51:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-28 04:51:31,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-28 04:51:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:51:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:51:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:51:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:51:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:51:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:51:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 04:51:31,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 04:51:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 04:51:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 04:51:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-28 04:51:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-28 04:51:31,195 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-28 04:51:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 04:51:31,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 04:51:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2024-11-28 04:51:31,195 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2024-11-28 04:51:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-28 04:51:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-28 04:51:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-28 04:51:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-28 04:51:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-28 04:51:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-28 04:51:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:51:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:51:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:51:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:51:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:51:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:51:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 04:51:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 04:51:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 04:51:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 04:51:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-28 04:51:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-28 04:51:31,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-28 04:51:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2024-11-28 04:51:31,199 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2024-11-28 04:51:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:51:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:51:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:51:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:51:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-28 04:51:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-28 04:51:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:51:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:51:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:51:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:51:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:51:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 04:51:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 04:51:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 04:51:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-28 04:51:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-28 04:51:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-28 04:51:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:51:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-11-28 04:51:31,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-11-28 04:51:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:51:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:51:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:51:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:51:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:51:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 04:51:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 04:51:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 04:51:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 04:51:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-28 04:51:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-28 04:51:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2024-11-28 04:51:31,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2024-11-28 04:51:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:51:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-11-28 04:51:31,206 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-11-28 04:51:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:51:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:51:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 04:51:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 04:51:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 04:51:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 04:51:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 04:51:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 04:51:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-28 04:51:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-28 04:51:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-28 04:51:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-28 04:51:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-28 04:51:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-28 04:51:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-28 04:51:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-28 04:51:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-28 04:51:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-28 04:51:31,207 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-28 04:51:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-28 04:51:31,208 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-28 04:51:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:51:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:51:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:51:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:51:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:51:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:51:31,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:51:31,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 04:51:31,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 04:51:31,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 04:51:31,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 04:51:31,212 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2024-11-28 04:51:31,212 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2024-11-28 04:51:31,212 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-28 04:51:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-28 04:51:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2024-11-28 04:51:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2024-11-28 04:51:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:51:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:51:31,734 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:51:31,738 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:51:31,875 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-28 04:51:34,838 INFO L? ?]: Removed 402 outVars from TransFormulas that were not future-live. [2024-11-28 04:51:34,838 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:51:34,867 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:51:34,868 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:51:34,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:51:34 BoogieIcfgContainer [2024-11-28 04:51:34,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:51:34,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:51:34,871 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:51:34,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:51:34,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:51:28" (1/3) ... [2024-11-28 04:51:34,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a6c584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:51:34, skipping insertion in model container [2024-11-28 04:51:34,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:30" (2/3) ... [2024-11-28 04:51:34,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a6c584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:51:34, skipping insertion in model container [2024-11-28 04:51:34,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:51:34" (3/3) ... [2024-11-28 04:51:34,881 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2024-11-28 04:51:34,900 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:51:34,904 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i that has 23 procedures, 749 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:51:35,031 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:51:35,048 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;@6f41dfa9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:51:35,048 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:51:35,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 748 states, 583 states have (on average 1.4871355060034306) internal successors, (867), 600 states have internal predecessors, (867), 142 states have call successors, (142), 22 states have call predecessors, (142), 21 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-28 04:51:35,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 04:51:35,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:35,078 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:35,079 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:35,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:35,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1110965803, now seen corresponding path program 1 times [2024-11-28 04:51:35,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:35,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968564086] [2024-11-28 04:51:35,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:35,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:35,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:35,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:35,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968564086] [2024-11-28 04:51:35,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968564086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:35,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:35,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:51:35,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605762006] [2024-11-28 04:51:35,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:35,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:35,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:35,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:35,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:35,998 INFO L87 Difference]: Start difference. First operand has 748 states, 583 states have (on average 1.4871355060034306) internal successors, (867), 600 states have internal predecessors, (867), 142 states have call successors, (142), 22 states have call predecessors, (142), 21 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:36,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:36,335 INFO L93 Difference]: Finished difference Result 1557 states and 2395 transitions. [2024-11-28 04:51:36,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:36,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-28 04:51:36,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:36,362 INFO L225 Difference]: With dead ends: 1557 [2024-11-28 04:51:36,362 INFO L226 Difference]: Without dead ends: 798 [2024-11-28 04:51:36,375 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 [2024-11-28 04:51:36,380 INFO L435 NwaCegarLoop]: 1155 mSDtfsCounter, 1078 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:36,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 1280 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:36,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-28 04:51:36,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-11-28 04:51:36,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 628 states have (on average 1.463375796178344) internal successors, (919), 639 states have internal predecessors, (919), 142 states have call successors, (142), 28 states have call predecessors, (142), 27 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:51:36,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1198 transitions. [2024-11-28 04:51:36,600 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1198 transitions. Word has length 15 [2024-11-28 04:51:36,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:36,600 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1198 transitions. [2024-11-28 04:51:36,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:36,603 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1198 transitions. [2024-11-28 04:51:36,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:51:36,606 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:36,606 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:36,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:51:36,607 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:36,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:36,608 INFO L85 PathProgramCache]: Analyzing trace with hash 845398652, now seen corresponding path program 1 times [2024-11-28 04:51:36,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:36,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686348467] [2024-11-28 04:51:36,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:36,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:37,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:37,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:37,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686348467] [2024-11-28 04:51:37,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686348467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:37,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:37,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:51:37,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396108650] [2024-11-28 04:51:37,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:37,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:37,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:37,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:37,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:37,024 INFO L87 Difference]: Start difference. First operand 798 states and 1198 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:37,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:37,201 INFO L93 Difference]: Finished difference Result 1593 states and 2393 transitions. [2024-11-28 04:51:37,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:37,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-28 04:51:37,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:37,210 INFO L225 Difference]: With dead ends: 1593 [2024-11-28 04:51:37,211 INFO L226 Difference]: Without dead ends: 798 [2024-11-28 04:51:37,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:37,215 INFO L435 NwaCegarLoop]: 1118 mSDtfsCounter, 1111 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:37,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 1118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:37,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-28 04:51:37,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-11-28 04:51:37,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 628 states have (on average 1.4601910828025477) internal successors, (917), 639 states have internal predecessors, (917), 142 states have call successors, (142), 28 states have call predecessors, (142), 27 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:51:37,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1196 transitions. [2024-11-28 04:51:37,323 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1196 transitions. Word has length 25 [2024-11-28 04:51:37,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:37,324 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1196 transitions. [2024-11-28 04:51:37,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:37,324 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1196 transitions. [2024-11-28 04:51:37,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:51:37,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:37,327 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:37,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:51:37,328 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:37,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:37,329 INFO L85 PathProgramCache]: Analyzing trace with hash -434465026, now seen corresponding path program 1 times [2024-11-28 04:51:37,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:37,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937042855] [2024-11-28 04:51:37,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:37,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:37,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:37,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:37,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937042855] [2024-11-28 04:51:37,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937042855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:37,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:37,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:51:37,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7028616] [2024-11-28 04:51:37,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:37,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:37,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:37,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:37,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:37,543 INFO L87 Difference]: Start difference. First operand 798 states and 1196 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:37,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:37,694 INFO L93 Difference]: Finished difference Result 1593 states and 2389 transitions. [2024-11-28 04:51:37,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:37,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-28 04:51:37,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:37,708 INFO L225 Difference]: With dead ends: 1593 [2024-11-28 04:51:37,708 INFO L226 Difference]: Without dead ends: 798 [2024-11-28 04:51:37,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:37,714 INFO L435 NwaCegarLoop]: 1119 mSDtfsCounter, 1105 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:37,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 1119 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:37,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-28 04:51:37,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-11-28 04:51:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 628 states have (on average 1.4585987261146496) internal successors, (916), 639 states have internal predecessors, (916), 142 states have call successors, (142), 28 states have call predecessors, (142), 27 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:51:37,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1195 transitions. [2024-11-28 04:51:37,811 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1195 transitions. Word has length 25 [2024-11-28 04:51:37,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:37,811 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1195 transitions. [2024-11-28 04:51:37,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:37,812 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1195 transitions. [2024-11-28 04:51:37,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 04:51:37,816 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:37,816 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:37,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:51:37,817 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:37,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:37,818 INFO L85 PathProgramCache]: Analyzing trace with hash -779386202, now seen corresponding path program 1 times [2024-11-28 04:51:37,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:37,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075807134] [2024-11-28 04:51:37,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:37,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:38,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:38,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075807134] [2024-11-28 04:51:38,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075807134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:38,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:38,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:51:38,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014546364] [2024-11-28 04:51:38,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:38,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:38,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:38,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:38,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:38,017 INFO L87 Difference]: Start difference. First operand 798 states and 1195 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:51:38,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:38,132 INFO L93 Difference]: Finished difference Result 824 states and 1227 transitions. [2024-11-28 04:51:38,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:38,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2024-11-28 04:51:38,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:38,142 INFO L225 Difference]: With dead ends: 824 [2024-11-28 04:51:38,142 INFO L226 Difference]: Without dead ends: 811 [2024-11-28 04:51:38,143 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 [2024-11-28 04:51:38,144 INFO L435 NwaCegarLoop]: 1135 mSDtfsCounter, 1115 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:38,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 1151 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:38,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-11-28 04:51:38,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 798. [2024-11-28 04:51:38,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 628 states have (on average 1.4570063694267517) internal successors, (915), 639 states have internal predecessors, (915), 142 states have call successors, (142), 28 states have call predecessors, (142), 27 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:51:38,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1194 transitions. [2024-11-28 04:51:38,248 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1194 transitions. Word has length 41 [2024-11-28 04:51:38,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:38,249 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1194 transitions. [2024-11-28 04:51:38,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:51:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1194 transitions. [2024-11-28 04:51:38,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 04:51:38,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:38,254 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:38,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:51:38,255 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:38,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:38,255 INFO L85 PathProgramCache]: Analyzing trace with hash -722127900, now seen corresponding path program 1 times [2024-11-28 04:51:38,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:38,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733847396] [2024-11-28 04:51:38,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:38,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:38,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:38,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733847396] [2024-11-28 04:51:38,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733847396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:38,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:38,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:51:38,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996986765] [2024-11-28 04:51:38,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:38,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:38,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:38,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:38,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:38,575 INFO L87 Difference]: Start difference. First operand 798 states and 1194 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:51:38,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:38,691 INFO L93 Difference]: Finished difference Result 1594 states and 2387 transitions. [2024-11-28 04:51:38,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:38,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-11-28 04:51:38,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:38,701 INFO L225 Difference]: With dead ends: 1594 [2024-11-28 04:51:38,701 INFO L226 Difference]: Without dead ends: 799 [2024-11-28 04:51:38,704 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 [2024-11-28 04:51:38,706 INFO L435 NwaCegarLoop]: 1119 mSDtfsCounter, 0 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:38,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2235 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:38,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-28 04:51:38,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 799. [2024-11-28 04:51:38,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 629 states have (on average 1.4562798092209857) internal successors, (916), 640 states have internal predecessors, (916), 142 states have call successors, (142), 28 states have call predecessors, (142), 27 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:51:38,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1195 transitions. [2024-11-28 04:51:38,827 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1195 transitions. Word has length 41 [2024-11-28 04:51:38,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:38,827 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1195 transitions. [2024-11-28 04:51:38,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:51:38,828 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1195 transitions. [2024-11-28 04:51:38,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 04:51:38,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:38,833 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:38,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:51:38,834 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:38,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:38,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2050842061, now seen corresponding path program 1 times [2024-11-28 04:51:38,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:38,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791078334] [2024-11-28 04:51:38,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:38,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:39,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:39,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:39,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791078334] [2024-11-28 04:51:39,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791078334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:39,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360223193] [2024-11-28 04:51:39,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:39,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:39,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:39,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:39,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:51:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:39,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:51:39,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:39,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:51:39,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:39,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360223193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:39,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:51:39,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-28 04:51:39,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614691540] [2024-11-28 04:51:39,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:39,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:39,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:39,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:39,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:51:39,964 INFO L87 Difference]: Start difference. First operand 799 states and 1195 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:51:40,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:40,107 INFO L93 Difference]: Finished difference Result 1602 states and 2396 transitions. [2024-11-28 04:51:40,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:40,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2024-11-28 04:51:40,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:40,114 INFO L225 Difference]: With dead ends: 1602 [2024-11-28 04:51:40,115 INFO L226 Difference]: Without dead ends: 799 [2024-11-28 04:51:40,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:51:40,118 INFO L435 NwaCegarLoop]: 1117 mSDtfsCounter, 2 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3343 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:40,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3343 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-28 04:51:40,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 799. [2024-11-28 04:51:40,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 629 states have (on average 1.4546899841017489) internal successors, (915), 640 states have internal predecessors, (915), 142 states have call successors, (142), 28 states have call predecessors, (142), 27 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:51:40,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1194 transitions. [2024-11-28 04:51:40,199 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1194 transitions. Word has length 42 [2024-11-28 04:51:40,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:40,199 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1194 transitions. [2024-11-28 04:51:40,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:51:40,199 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1194 transitions. [2024-11-28 04:51:40,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 04:51:40,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:40,200 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:40,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:51:40,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:40,405 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:40,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:40,405 INFO L85 PathProgramCache]: Analyzing trace with hash 374854326, now seen corresponding path program 1 times [2024-11-28 04:51:40,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:40,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182940635] [2024-11-28 04:51:40,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:40,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:40,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:40,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:40,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182940635] [2024-11-28 04:51:40,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182940635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:40,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214101298] [2024-11-28 04:51:40,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:40,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:40,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:40,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:40,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:51:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:41,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:51:41,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:41,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:41,397 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:41,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:41,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214101298] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:51:41,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:51:41,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 04:51:41,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924860233] [2024-11-28 04:51:41,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:41,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:51:41,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:41,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:51:41,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:51:41,478 INFO L87 Difference]: Start difference. First operand 799 states and 1194 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:51:41,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:41,633 INFO L93 Difference]: Finished difference Result 1598 states and 2391 transitions. [2024-11-28 04:51:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:51:41,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-11-28 04:51:41,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:41,641 INFO L225 Difference]: With dead ends: 1598 [2024-11-28 04:51:41,641 INFO L226 Difference]: Without dead ends: 802 [2024-11-28 04:51:41,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:51:41,644 INFO L435 NwaCegarLoop]: 1118 mSDtfsCounter, 0 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4463 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:41,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4463 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:41,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-28 04:51:41,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 802. [2024-11-28 04:51:41,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 632 states have (on average 1.4525316455696202) internal successors, (918), 643 states have internal predecessors, (918), 142 states have call successors, (142), 28 states have call predecessors, (142), 27 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:51:41,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1197 transitions. [2024-11-28 04:51:41,717 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1197 transitions. Word has length 44 [2024-11-28 04:51:41,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:41,717 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1197 transitions. [2024-11-28 04:51:41,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:51:41,717 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1197 transitions. [2024-11-28 04:51:41,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 04:51:41,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:41,719 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:41,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:51:41,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:41,920 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:41,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:41,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1619355623, now seen corresponding path program 2 times [2024-11-28 04:51:41,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:41,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939642600] [2024-11-28 04:51:41,921 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:51:41,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:42,004 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:51:42,005 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:51:42,386 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:51:42,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:42,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939642600] [2024-11-28 04:51:42,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939642600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:42,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:42,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:51:42,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917404232] [2024-11-28 04:51:42,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:42,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:42,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:42,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:42,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:42,389 INFO L87 Difference]: Start difference. First operand 802 states and 1197 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:51:42,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:42,488 INFO L93 Difference]: Finished difference Result 804 states and 1198 transitions. [2024-11-28 04:51:42,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:42,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2024-11-28 04:51:42,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:42,500 INFO L225 Difference]: With dead ends: 804 [2024-11-28 04:51:42,500 INFO L226 Difference]: Without dead ends: 801 [2024-11-28 04:51:42,501 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 [2024-11-28 04:51:42,501 INFO L435 NwaCegarLoop]: 1116 mSDtfsCounter, 1091 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:42,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 1116 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:42,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-28 04:51:42,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2024-11-28 04:51:42,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 632 states have (on average 1.4509493670886076) internal successors, (917), 642 states have internal predecessors, (917), 141 states have call successors, (141), 28 states have call predecessors, (141), 27 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:51:42,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1195 transitions. [2024-11-28 04:51:42,621 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1195 transitions. Word has length 47 [2024-11-28 04:51:42,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:42,622 INFO L471 AbstractCegarLoop]: Abstraction has 801 states and 1195 transitions. [2024-11-28 04:51:42,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:51:42,622 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1195 transitions. [2024-11-28 04:51:42,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 04:51:42,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:42,623 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:42,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:51:42,624 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:42,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:42,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1339863361, now seen corresponding path program 1 times [2024-11-28 04:51:42,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:42,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095035619] [2024-11-28 04:51:42,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:42,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:43,198 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:43,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:43,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095035619] [2024-11-28 04:51:43,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095035619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:43,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963070407] [2024-11-28 04:51:43,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:43,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:43,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:43,204 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:43,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:51:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:43,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:51:43,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:44,496 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:51:44,496 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:44,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963070407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:44,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:51:44,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-28 04:51:44,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729105401] [2024-11-28 04:51:44,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:44,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:44,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:44,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:44,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:51:44,498 INFO L87 Difference]: Start difference. First operand 801 states and 1195 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:51:44,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:44,587 INFO L93 Difference]: Finished difference Result 803 states and 1196 transitions. [2024-11-28 04:51:44,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:44,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2024-11-28 04:51:44,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:44,594 INFO L225 Difference]: With dead ends: 803 [2024-11-28 04:51:44,595 INFO L226 Difference]: Without dead ends: 800 [2024-11-28 04:51:44,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:51:44,596 INFO L435 NwaCegarLoop]: 1113 mSDtfsCounter, 1074 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:44,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 1113 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:44,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-28 04:51:44,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 800. [2024-11-28 04:51:44,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 632 states have (on average 1.4493670886075949) internal successors, (916), 641 states have internal predecessors, (916), 140 states have call successors, (140), 28 states have call predecessors, (140), 27 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:51:44,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1193 transitions. [2024-11-28 04:51:44,677 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1193 transitions. Word has length 48 [2024-11-28 04:51:44,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:44,678 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1193 transitions. [2024-11-28 04:51:44,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:51:44,678 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1193 transitions. [2024-11-28 04:51:44,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 04:51:44,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:44,679 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:44,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:51:44,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 04:51:44,884 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:44,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:44,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1413633514, now seen corresponding path program 1 times [2024-11-28 04:51:44,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:44,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926072731] [2024-11-28 04:51:44,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:44,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:45,082 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:51:45,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:45,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926072731] [2024-11-28 04:51:45,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926072731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:45,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:45,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:51:45,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848391868] [2024-11-28 04:51:45,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:45,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:45,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:45,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:45,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:45,086 INFO L87 Difference]: Start difference. First operand 800 states and 1193 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:51:45,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:45,171 INFO L93 Difference]: Finished difference Result 802 states and 1194 transitions. [2024-11-28 04:51:45,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:45,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2024-11-28 04:51:45,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:45,181 INFO L225 Difference]: With dead ends: 802 [2024-11-28 04:51:45,181 INFO L226 Difference]: Without dead ends: 799 [2024-11-28 04:51:45,182 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 [2024-11-28 04:51:45,183 INFO L435 NwaCegarLoop]: 1112 mSDtfsCounter, 1085 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:45,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 1112 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:45,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-28 04:51:45,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 799. [2024-11-28 04:51:45,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 632 states have (on average 1.4477848101265822) internal successors, (915), 640 states have internal predecessors, (915), 139 states have call successors, (139), 28 states have call predecessors, (139), 27 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:51:45,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1191 transitions. [2024-11-28 04:51:45,272 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1191 transitions. Word has length 49 [2024-11-28 04:51:45,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:45,274 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1191 transitions. [2024-11-28 04:51:45,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:51:45,274 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1191 transitions. [2024-11-28 04:51:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 04:51:45,275 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:45,275 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:45,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:51:45,276 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:45,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:45,277 INFO L85 PathProgramCache]: Analyzing trace with hash 872695586, now seen corresponding path program 1 times [2024-11-28 04:51:45,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:45,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534108520] [2024-11-28 04:51:45,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:45,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:51:45,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:45,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534108520] [2024-11-28 04:51:45,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534108520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:45,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:45,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:51:45,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788407507] [2024-11-28 04:51:45,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:45,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:45,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:45,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:45,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:45,447 INFO L87 Difference]: Start difference. First operand 799 states and 1191 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:51:45,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:45,563 INFO L93 Difference]: Finished difference Result 801 states and 1192 transitions. [2024-11-28 04:51:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:45,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2024-11-28 04:51:45,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:45,573 INFO L225 Difference]: With dead ends: 801 [2024-11-28 04:51:45,573 INFO L226 Difference]: Without dead ends: 798 [2024-11-28 04:51:45,575 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 [2024-11-28 04:51:45,575 INFO L435 NwaCegarLoop]: 1110 mSDtfsCounter, 1082 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:45,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 1110 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:45,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-28 04:51:45,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-11-28 04:51:45,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 632 states have (on average 1.4462025316455696) internal successors, (914), 639 states have internal predecessors, (914), 138 states have call successors, (138), 28 states have call predecessors, (138), 27 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:51:45,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1189 transitions. [2024-11-28 04:51:45,659 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1189 transitions. Word has length 50 [2024-11-28 04:51:45,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:45,661 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1189 transitions. [2024-11-28 04:51:45,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:51:45,661 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1189 transitions. [2024-11-28 04:51:45,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 04:51:45,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:45,662 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:45,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:51:45,663 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:45,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:45,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1283493869, now seen corresponding path program 1 times [2024-11-28 04:51:45,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:45,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245439650] [2024-11-28 04:51:45,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:45,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:45,828 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:51:45,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:45,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245439650] [2024-11-28 04:51:45,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245439650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:45,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:45,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:51:45,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100237609] [2024-11-28 04:51:45,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:45,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:45,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:45,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:45,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:45,831 INFO L87 Difference]: Start difference. First operand 798 states and 1189 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:51:45,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:45,908 INFO L93 Difference]: Finished difference Result 798 states and 1189 transitions. [2024-11-28 04:51:45,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:45,908 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), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2024-11-28 04:51:45,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:45,910 INFO L225 Difference]: With dead ends: 798 [2024-11-28 04:51:45,910 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:51:45,912 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 [2024-11-28 04:51:45,913 INFO L435 NwaCegarLoop]: 1108 mSDtfsCounter, 1078 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 1108 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 [2024-11-28 04:51:45,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:45,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:51:45,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:51:45,914 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) [2024-11-28 04:51:45,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:51:45,915 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2024-11-28 04:51:45,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:45,915 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:51:45,915 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), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:51:45,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:51:45,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:51:45,919 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:51:45,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:51:45,924 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:45,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:51:53,714 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:51:53,731 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-28 04:51:53,732 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-28 04:51:53,732 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-28 04:51:53,732 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-28 04:51:53,735 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-28 04:51:53,736 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-28 04:51:53,736 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-28 04:51:53,736 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-28 04:51:53,737 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-28 04:51:53,737 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-28 04:51:53,737 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-28 04:51:53,737 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-28 04:51:53,738 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-28 04:51:53,738 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-28 04:51:53,738 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-28 04:51:53,739 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-28 04:51:53,739 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-28 04:51:53,740 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-28 04:51:53,740 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-28 04:51:53,740 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-28 04:51:53,741 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-28 04:51:53,741 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-28 04:51:53,741 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-28 04:51:53,741 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-28 04:51:53,742 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-28 04:51:53,742 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-28 04:51:53,742 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-28 04:51:53,742 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-28 04:51:53,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:51:53 BoogieIcfgContainer [2024-11-28 04:51:53,743 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:51:53,744 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:51:53,744 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:51:53,744 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:51:53,749 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:51:34" (3/4) ... [2024-11-28 04:51:53,752 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:51:53,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure netdev_priv [2024-11-28 04:51:53,760 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure outb [2024-11-28 04:51:53,760 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure check_mirror [2024-11-28 04:51:53,760 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure iounmap [2024-11-28 04:51:53,760 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __release_region [2024-11-28 04:51:53,760 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2024-11-28 04:51:53,760 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure free_irq [2024-11-28 04:51:53,760 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-28 04:51:53,760 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 04:51:53,760 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writeb [2024-11-28 04:51:53,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __const_udelay [2024-11-28 04:51:53,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ioremap [2024-11-28 04:51:53,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __request_region [2024-11-28 04:51:53,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-28 04:51:53,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-28 04:51:53,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_irq_1 [2024-11-28 04:51:53,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure disable_suitable_irq_1 [2024-11-28 04:51:53,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2024-11-28 04:51:53,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-11-28 04:51:53,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure readb [2024-11-28 04:51:53,762 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure inb [2024-11-28 04:51:53,762 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure free_netdev [2024-11-28 04:51:53,812 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 187 nodes and edges [2024-11-28 04:51:53,817 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 85 nodes and edges [2024-11-28 04:51:53,820 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-28 04:51:53,823 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-28 04:51:53,826 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-28 04:51:53,830 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 04:51:53,833 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 04:51:53,836 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:51:54,184 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:51:54,184 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:51:54,184 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:51:54,186 INFO L158 Benchmark]: Toolchain (without parser) took 25719.57ms. Allocated memory was 117.4MB in the beginning and 453.0MB in the end (delta: 335.5MB). Free memory was 84.5MB in the beginning and 326.9MB in the end (delta: -242.4MB). Peak memory consumption was 91.6MB. Max. memory is 16.1GB. [2024-11-28 04:51:54,186 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:51:54,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2063.55ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 84.3MB in the beginning and 115.5MB in the end (delta: -31.2MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. [2024-11-28 04:51:54,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 178.44ms. Allocated memory is still 192.9MB. Free memory was 115.5MB in the beginning and 104.9MB in the end (delta: 10.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:51:54,189 INFO L158 Benchmark]: Boogie Preprocessor took 394.31ms. Allocated memory is still 192.9MB. Free memory was 104.9MB in the beginning and 130.6MB in the end (delta: -25.7MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2024-11-28 04:51:54,189 INFO L158 Benchmark]: RCFGBuilder took 3762.27ms. Allocated memory was 192.9MB in the beginning and 310.4MB in the end (delta: 117.4MB). Free memory was 130.6MB in the beginning and 232.3MB in the end (delta: -101.7MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. [2024-11-28 04:51:54,190 INFO L158 Benchmark]: TraceAbstraction took 18872.08ms. Allocated memory was 310.4MB in the beginning and 453.0MB in the end (delta: 142.6MB). Free memory was 230.7MB in the beginning and 352.7MB in the end (delta: -122.0MB). Peak memory consumption was 257.4MB. Max. memory is 16.1GB. [2024-11-28 04:51:54,191 INFO L158 Benchmark]: Witness Printer took 440.49ms. Allocated memory is still 453.0MB. Free memory was 352.7MB in the beginning and 326.9MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:51:54,196 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2063.55ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 84.3MB in the beginning and 115.5MB in the end (delta: -31.2MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 178.44ms. Allocated memory is still 192.9MB. Free memory was 115.5MB in the beginning and 104.9MB in the end (delta: 10.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 394.31ms. Allocated memory is still 192.9MB. Free memory was 104.9MB in the beginning and 130.6MB in the end (delta: -25.7MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3762.27ms. Allocated memory was 192.9MB in the beginning and 310.4MB in the end (delta: 117.4MB). Free memory was 130.6MB in the beginning and 232.3MB in the end (delta: -101.7MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. * TraceAbstraction took 18872.08ms. Allocated memory was 310.4MB in the beginning and 453.0MB in the end (delta: 142.6MB). Free memory was 230.7MB in the beginning and 352.7MB in the end (delta: -122.0MB). Peak memory consumption was 257.4MB. Max. memory is 16.1GB. * Witness Printer took 440.49ms. Allocated memory is still 453.0MB. Free memory was 352.7MB in the beginning and 326.9MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 5007]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5007] - GenericResultAtLocation [Line: 5014]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5014] - GenericResultAtLocation [Line: 5052]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5052] - GenericResultAtLocation [Line: 5060]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5060] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset * 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: 5172]: 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 23 procedures, 749 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9821 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9821 mSDsluCounter, 20268 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6828 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 13440 mSDtfsCounter, 56 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=802occurred in iteration=7, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 612 NumberOfCodeBlocks, 608 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 640 ConstructedInterpolants, 0 QuantifiedInterpolants, 1728 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2963 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 51/65 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: 5294]: Location Invariant Derived location invariant: (((((((com90xx_skip_probe == 0) && (ldv_state_variable_0 == 1)) && (INTERF_STATE == 0)) && (irq == 0)) && (dev_counter == 0)) && (ldv_retval_0 == 0)) && (SERIAL_STATE == 0)) - InvariantResult [Line: 5977]: Location Invariant Derived location invariant: (((((((com90xx_skip_probe == 0) && (ldv_state_variable_0 == 1)) && (INTERF_STATE == 0)) && (irq == 0)) && (dev_counter == 0)) && (ldv_retval_0 == 0)) && (SERIAL_STATE == 0)) - InvariantResult [Line: 5298]: Loop Invariant Derived loop invariant: (((((((com90xx_skip_probe == 0) && (ldv_state_variable_0 == 1)) && (INTERF_STATE == 0)) && (irq == 0)) && (dev_counter == 0)) && (ldv_retval_0 == 0)) && (SERIAL_STATE == 0)) - InvariantResult [Line: 5966]: Location Invariant Derived location invariant: (((((((com90xx_skip_probe == 0) && (ldv_state_variable_0 == 1)) && (INTERF_STATE == 0)) && (irq == 0)) && (dev_counter == 0)) && (ldv_retval_0 == 0)) && (SERIAL_STATE == 0)) - InvariantResult [Line: 5294]: Location Invariant Derived location invariant: (((((((com90xx_skip_probe == 0) && (ldv_state_variable_0 == 1)) && (INTERF_STATE == 0)) && (irq == 0)) && (dev_counter == 0)) && (ldv_retval_0 == 0)) && (SERIAL_STATE == 0)) - InvariantResult [Line: 5294]: Location Invariant Derived location invariant: (((((((com90xx_skip_probe == 0) && (ldv_state_variable_0 == 1)) && (INTERF_STATE == 0)) && (irq == 0)) && (dev_counter == 0)) && (ldv_retval_0 == 0)) && (SERIAL_STATE == 0)) - InvariantResult [Line: 5933]: Location Invariant Derived location invariant: (((((((com90xx_skip_probe == 0) && (ldv_state_variable_0 == 1)) && (INTERF_STATE == 0)) && (irq == 0)) && (dev_counter == 0)) && (ldv_retval_0 == 0)) && (SERIAL_STATE == 0)) RESULT: Ultimate proved your program to be correct! [2024-11-28 04:51:54,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9347c05-23f5-4e69-bd3a-884d1b774d02/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE