./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 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/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_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1d08dc08d1adbb7da804a516a83dc1dfdba0f9e1c9fbdcda9ca265322e9a6493 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:59:28,380 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:59:28,473 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 22:59:28,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:59:28,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:59:28,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:59:28,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:59:28,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:59:28,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:59:28,520 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:59:28,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:59:28,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:59:28,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:59:28,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:59:28,522 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:59:28,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:59:28,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:59:28,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:59:28,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:59:28,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:59:28,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:59:28,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:59:28,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:59:28,524 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:59:28,524 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:59:28,524 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:59:28,524 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:59:28,524 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:59:28,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:59:28,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:59:28,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:59:28,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:59:28,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:59:28,526 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:59:28,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:59:28,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:59:28,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:59:28,527 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:59:28,527 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:59:28,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:59:28,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:59:28,527 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:59:28,527 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:59:28,527 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:59:28,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:59:28,528 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_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d08dc08d1adbb7da804a516a83dc1dfdba0f9e1c9fbdcda9ca265322e9a6493 [2024-11-23 22:59:28,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:59:28,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:59:28,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:59:28,844 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:59:28,845 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:59:28,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2024-11-23 22:59:32,025 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/data/159404f0d/a73b19f8852949089c364d310a9611f5/FLAG49c6643e2 [2024-11-23 22:59:32,548 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:59:32,549 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2024-11-23 22:59:32,586 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/data/159404f0d/a73b19f8852949089c364d310a9611f5/FLAG49c6643e2 [2024-11-23 22:59:32,601 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/data/159404f0d/a73b19f8852949089c364d310a9611f5 [2024-11-23 22:59:32,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:59:32,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:59:32,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:59:32,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:59:32,611 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:59:32,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:59:32" (1/1) ... [2024-11-23 22:59:32,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eafb4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:32, skipping insertion in model container [2024-11-23 22:59:32,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:59:32" (1/1) ... [2024-11-23 22:59:32,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:59:33,426 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_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/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] [2024-11-23 22:59:33,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:59:33,903 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:59:34,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5007] [2024-11-23 22:59:34,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5014] [2024-11-23 22:59:34,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5052] [2024-11-23 22:59:34,047 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5060] [2024-11-23 22:59:34,053 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_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/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] [2024-11-23 22:59:34,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:59:34,260 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:59:34,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34 WrapperNode [2024-11-23 22:59:34,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:59:34,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:59:34,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:59:34,265 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:59:34,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,316 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,417 INFO L138 Inliner]: procedures = 103, calls = 582, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 2031 [2024-11-23 22:59:34,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:59:34,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:59:34,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:59:34,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:59:34,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,456 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,538 INFO L175 MemorySlicer]: Split 281 memory accesses to 11 slices as follows [2, 2, 69, 2, 2, 18, 10, 29, 2, 143, 2]. 51 percent of accesses are in the largest equivalence class. The 188 initializations are split as follows [2, 2, 8, 2, 2, 16, 9, 0, 2, 143, 2]. The 31 writes are split as follows [0, 0, 20, 0, 0, 1, 0, 10, 0, 0, 0]. [2024-11-23 22:59:34,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,601 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,617 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:59:34,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:59:34,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:59:34,673 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:59:34,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (1/1) ... [2024-11-23 22:59:34,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:59:34,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:34,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:59:34,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:59:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-23 22:59:34,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-23 22:59:34,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 22:59:34,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 22:59:34,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 22:59:34,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 22:59:34,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 22:59:34,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 22:59:34,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 22:59:34,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-23 22:59:34,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-23 22:59:34,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-23 22:59:34,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-23 22:59:34,757 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-23 22:59:34,757 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-23 22:59:34,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-23 22:59:34,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-23 22:59:34,758 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2024-11-23 22:59:34,758 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2024-11-23 22:59:34,758 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-23 22:59:34,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-23 22:59:34,759 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-23 22:59:34,759 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-23 22:59:34,759 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-23 22:59:34,759 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-23 22:59:34,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 22:59:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 22:59:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 22:59:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 22:59:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 22:59:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 22:59:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 22:59:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-23 22:59:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-23 22:59:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-23 22:59:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-23 22:59:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-23 22:59:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-23 22:59:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2024-11-23 22:59:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2024-11-23 22:59:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:59:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:59:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 22:59:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:59:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-23 22:59:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-23 22:59:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 22:59:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 22:59:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-11-23 22:59:34,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 22:59:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2024-11-23 22:59:34,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-11-23 22:59:34,765 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-23 22:59:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-23 22:59:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-23 22:59:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-23 22:59:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-23 22:59:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-23 22:59:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-23 22:59:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-23 22:59:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-23 22:59:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-23 22:59:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-23 22:59:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-23 22:59:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-23 22:59:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-23 22:59:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:59:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 22:59:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 22:59:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 22:59:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 22:59:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 22:59:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 22:59:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 22:59:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 22:59:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-23 22:59:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-23 22:59:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2024-11-23 22:59:34,772 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2024-11-23 22:59:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-23 22:59:34,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-23 22:59:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2024-11-23 22:59:34,773 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2024-11-23 22:59:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:59:34,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:59:35,148 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:59:35,150 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:59:35,237 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-23 22:59:37,393 INFO L? ?]: Removed 402 outVars from TransFormulas that were not future-live. [2024-11-23 22:59:37,394 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:59:37,421 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:59:37,421 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:59:37,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:59:37 BoogieIcfgContainer [2024-11-23 22:59:37,422 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:59:37,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:59:37,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:59:37,430 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:59:37,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:59:32" (1/3) ... [2024-11-23 22:59:37,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f8165b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:59:37, skipping insertion in model container [2024-11-23 22:59:37,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:34" (2/3) ... [2024-11-23 22:59:37,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f8165b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:59:37, skipping insertion in model container [2024-11-23 22:59:37,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:59:37" (3/3) ... [2024-11-23 22:59:37,439 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2024-11-23 22:59:37,456 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:59:37,459 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. [2024-11-23 22:59:37,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:59:37,557 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;@48cd457f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:59:37,557 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:59:37,563 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) [2024-11-23 22:59:37,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-23 22:59:37,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:37,572 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:37,572 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:37,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:37,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1110965803, now seen corresponding path program 1 times [2024-11-23 22:59:37,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:37,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603115058] [2024-11-23 22:59:37,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:37,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:38,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:38,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:38,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603115058] [2024-11-23 22:59:38,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603115058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:38,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:38,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:59:38,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498598136] [2024-11-23 22:59:38,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:38,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:38,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:38,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:38,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:59:38,178 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) [2024-11-23 22:59:38,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:38,449 INFO L93 Difference]: Finished difference Result 1557 states and 2395 transitions. [2024-11-23 22:59:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:38,453 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 [2024-11-23 22:59:38,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:38,477 INFO L225 Difference]: With dead ends: 1557 [2024-11-23 22:59:38,478 INFO L226 Difference]: Without dead ends: 798 [2024-11-23 22:59:38,490 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 [2024-11-23 22:59:38,493 INFO L435 NwaCegarLoop]: 1155 mSDtfsCounter, 1078 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2024-11-23 22:59:38,494 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] [2024-11-23 22:59:38,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-23 22:59:38,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-11-23 22:59:38,644 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) [2024-11-23 22:59:38,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1198 transitions. [2024-11-23 22:59:38,667 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1198 transitions. Word has length 15 [2024-11-23 22:59:38,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:38,667 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1198 transitions. [2024-11-23 22:59:38,667 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) [2024-11-23 22:59:38,667 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1198 transitions. [2024-11-23 22:59:38,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-23 22:59:38,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:38,672 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] [2024-11-23 22:59:38,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 22:59:38,672 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:38,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:38,673 INFO L85 PathProgramCache]: Analyzing trace with hash 845398652, now seen corresponding path program 1 times [2024-11-23 22:59:38,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:38,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584932310] [2024-11-23 22:59:38,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:38,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:39,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:39,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:39,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584932310] [2024-11-23 22:59:39,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584932310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:39,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:39,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:59:39,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818806014] [2024-11-23 22:59:39,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:39,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:39,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:39,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:39,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:59:39,049 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) [2024-11-23 22:59:39,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:39,198 INFO L93 Difference]: Finished difference Result 1593 states and 2393 transitions. [2024-11-23 22:59:39,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:39,198 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 [2024-11-23 22:59:39,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:39,207 INFO L225 Difference]: With dead ends: 1593 [2024-11-23 22:59:39,209 INFO L226 Difference]: Without dead ends: 798 [2024-11-23 22:59:39,212 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 [2024-11-23 22:59:39,213 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 [2024-11-23 22:59:39,213 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] [2024-11-23 22:59:39,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-23 22:59:39,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-11-23 22:59:39,292 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) [2024-11-23 22:59:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1196 transitions. [2024-11-23 22:59:39,303 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1196 transitions. Word has length 25 [2024-11-23 22:59:39,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:39,303 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1196 transitions. [2024-11-23 22:59:39,304 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) [2024-11-23 22:59:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1196 transitions. [2024-11-23 22:59:39,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-23 22:59:39,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:39,306 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] [2024-11-23 22:59:39,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:59:39,307 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:39,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:39,308 INFO L85 PathProgramCache]: Analyzing trace with hash -434465026, now seen corresponding path program 1 times [2024-11-23 22:59:39,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:39,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93609673] [2024-11-23 22:59:39,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:39,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:39,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:39,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93609673] [2024-11-23 22:59:39,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93609673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:39,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:39,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:59:39,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145381250] [2024-11-23 22:59:39,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:39,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:39,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:39,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:39,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:59:39,515 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) [2024-11-23 22:59:39,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:39,600 INFO L93 Difference]: Finished difference Result 1593 states and 2389 transitions. [2024-11-23 22:59:39,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:39,601 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 [2024-11-23 22:59:39,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:39,610 INFO L225 Difference]: With dead ends: 1593 [2024-11-23 22:59:39,610 INFO L226 Difference]: Without dead ends: 798 [2024-11-23 22:59:39,612 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 [2024-11-23 22:59:39,613 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 [2024-11-23 22:59:39,615 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] [2024-11-23 22:59:39,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-23 22:59:39,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-11-23 22:59:39,692 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) [2024-11-23 22:59:39,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1195 transitions. [2024-11-23 22:59:39,698 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1195 transitions. Word has length 25 [2024-11-23 22:59:39,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:39,699 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1195 transitions. [2024-11-23 22:59:39,730 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) [2024-11-23 22:59:39,731 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1195 transitions. [2024-11-23 22:59:39,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-23 22:59:39,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:39,734 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] [2024-11-23 22:59:39,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 22:59:39,734 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:39,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:39,735 INFO L85 PathProgramCache]: Analyzing trace with hash -779386202, now seen corresponding path program 1 times [2024-11-23 22:59:39,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:39,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573448758] [2024-11-23 22:59:39,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:39,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:39,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:39,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:39,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573448758] [2024-11-23 22:59:39,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573448758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:39,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:39,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:59:39,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249615875] [2024-11-23 22:59:39,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:39,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:39,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:39,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:39,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:59:39,922 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) [2024-11-23 22:59:40,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:40,016 INFO L93 Difference]: Finished difference Result 824 states and 1227 transitions. [2024-11-23 22:59:40,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:40,016 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 [2024-11-23 22:59:40,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:40,024 INFO L225 Difference]: With dead ends: 824 [2024-11-23 22:59:40,025 INFO L226 Difference]: Without dead ends: 811 [2024-11-23 22:59:40,025 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 [2024-11-23 22:59:40,026 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 [2024-11-23 22:59:40,027 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] [2024-11-23 22:59:40,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-11-23 22:59:40,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 798. [2024-11-23 22:59:40,096 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) [2024-11-23 22:59:40,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1194 transitions. [2024-11-23 22:59:40,103 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1194 transitions. Word has length 41 [2024-11-23 22:59:40,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:40,103 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1194 transitions. [2024-11-23 22:59:40,103 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) [2024-11-23 22:59:40,104 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1194 transitions. [2024-11-23 22:59:40,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-23 22:59:40,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:40,108 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] [2024-11-23 22:59:40,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 22:59:40,108 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:40,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:40,108 INFO L85 PathProgramCache]: Analyzing trace with hash -722127900, now seen corresponding path program 1 times [2024-11-23 22:59:40,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:40,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181438878] [2024-11-23 22:59:40,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:40,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:40,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:40,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:40,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181438878] [2024-11-23 22:59:40,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181438878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:40,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:40,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:59:40,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863537783] [2024-11-23 22:59:40,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:40,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:40,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:40,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:40,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:59:40,372 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) [2024-11-23 22:59:40,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:40,472 INFO L93 Difference]: Finished difference Result 1594 states and 2387 transitions. [2024-11-23 22:59:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:40,472 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 [2024-11-23 22:59:40,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:40,478 INFO L225 Difference]: With dead ends: 1594 [2024-11-23 22:59:40,478 INFO L226 Difference]: Without dead ends: 799 [2024-11-23 22:59:40,480 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 [2024-11-23 22:59:40,481 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 [2024-11-23 22:59:40,482 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] [2024-11-23 22:59:40,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-23 22:59:40,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 799. [2024-11-23 22:59:40,571 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) [2024-11-23 22:59:40,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1195 transitions. [2024-11-23 22:59:40,577 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1195 transitions. Word has length 41 [2024-11-23 22:59:40,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:40,578 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1195 transitions. [2024-11-23 22:59:40,578 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) [2024-11-23 22:59:40,578 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1195 transitions. [2024-11-23 22:59:40,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-23 22:59:40,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:40,581 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] [2024-11-23 22:59:40,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 22:59:40,581 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:40,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:40,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2050842061, now seen corresponding path program 1 times [2024-11-23 22:59:40,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:40,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050049223] [2024-11-23 22:59:40,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:40,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:40,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:40,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:40,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050049223] [2024-11-23 22:59:40,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050049223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:40,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876544289] [2024-11-23 22:59:40,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:40,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:40,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:40,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:40,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:59:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:41,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:59:41,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 22:59:41,508 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:41,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876544289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:41,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:59:41,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-23 22:59:41,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029017456] [2024-11-23 22:59:41,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:41,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:59:41,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:41,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:59:41,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:59:41,511 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) [2024-11-23 22:59:41,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:41,626 INFO L93 Difference]: Finished difference Result 1602 states and 2396 transitions. [2024-11-23 22:59:41,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:59:41,627 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 [2024-11-23 22:59:41,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:41,632 INFO L225 Difference]: With dead ends: 1602 [2024-11-23 22:59:41,632 INFO L226 Difference]: Without dead ends: 799 [2024-11-23 22:59:41,635 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 [2024-11-23 22:59:41,635 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 [2024-11-23 22:59:41,635 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] [2024-11-23 22:59:41,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-23 22:59:41,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 799. [2024-11-23 22:59:41,690 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) [2024-11-23 22:59:41,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1194 transitions. [2024-11-23 22:59:41,696 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1194 transitions. Word has length 42 [2024-11-23 22:59:41,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:41,697 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1194 transitions. [2024-11-23 22:59:41,697 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) [2024-11-23 22:59:41,697 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1194 transitions. [2024-11-23 22:59:41,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-23 22:59:41,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:41,698 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] [2024-11-23 22:59:41,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:59:41,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:41,903 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:41,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:41,903 INFO L85 PathProgramCache]: Analyzing trace with hash 374854326, now seen corresponding path program 1 times [2024-11-23 22:59:41,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:41,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080445676] [2024-11-23 22:59:41,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:41,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:42,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:42,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:42,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080445676] [2024-11-23 22:59:42,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080445676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:42,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422099195] [2024-11-23 22:59:42,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:42,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:42,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:42,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:42,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:59:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:42,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:59:42,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:42,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:42,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:59:42,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:42,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422099195] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:59:42,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:59:42,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-23 22:59:42,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977992379] [2024-11-23 22:59:42,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:59:42,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:59:42,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:42,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:59:42,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:59:42,732 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) [2024-11-23 22:59:42,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:42,857 INFO L93 Difference]: Finished difference Result 1598 states and 2391 transitions. [2024-11-23 22:59:42,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:59:42,858 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 [2024-11-23 22:59:42,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:42,863 INFO L225 Difference]: With dead ends: 1598 [2024-11-23 22:59:42,863 INFO L226 Difference]: Without dead ends: 802 [2024-11-23 22:59:42,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:59:42,866 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 [2024-11-23 22:59:42,866 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] [2024-11-23 22:59:42,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-23 22:59:42,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 802. [2024-11-23 22:59:42,924 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) [2024-11-23 22:59:42,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1197 transitions. [2024-11-23 22:59:42,931 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1197 transitions. Word has length 44 [2024-11-23 22:59:42,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:42,931 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1197 transitions. [2024-11-23 22:59:42,931 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) [2024-11-23 22:59:42,931 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1197 transitions. [2024-11-23 22:59:42,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-23 22:59:42,932 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:42,932 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] [2024-11-23 22:59:42,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 22:59:43,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:43,135 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:43,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:43,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1619355623, now seen corresponding path program 2 times [2024-11-23 22:59:43,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:43,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746017461] [2024-11-23 22:59:43,137 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 22:59:43,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:43,197 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 22:59:43,197 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 22:59:43,499 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 22:59:43,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:43,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746017461] [2024-11-23 22:59:43,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746017461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:43,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:43,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:59:43,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051087956] [2024-11-23 22:59:43,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:43,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:43,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:43,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:43,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:59:43,502 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) [2024-11-23 22:59:43,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:43,590 INFO L93 Difference]: Finished difference Result 804 states and 1198 transitions. [2024-11-23 22:59:43,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:43,591 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 [2024-11-23 22:59:43,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:43,596 INFO L225 Difference]: With dead ends: 804 [2024-11-23 22:59:43,596 INFO L226 Difference]: Without dead ends: 801 [2024-11-23 22:59:43,597 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 [2024-11-23 22:59:43,597 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 [2024-11-23 22:59:43,597 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] [2024-11-23 22:59:43,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-23 22:59:43,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2024-11-23 22:59:43,667 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) [2024-11-23 22:59:43,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1195 transitions. [2024-11-23 22:59:43,674 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1195 transitions. Word has length 47 [2024-11-23 22:59:43,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:43,674 INFO L471 AbstractCegarLoop]: Abstraction has 801 states and 1195 transitions. [2024-11-23 22:59:43,674 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) [2024-11-23 22:59:43,674 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1195 transitions. [2024-11-23 22:59:43,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-23 22:59:43,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:43,675 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] [2024-11-23 22:59:43,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 22:59:43,676 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:43,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:43,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1339863361, now seen corresponding path program 1 times [2024-11-23 22:59:43,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:43,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128446491] [2024-11-23 22:59:43,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:43,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:44,060 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:44,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:44,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128446491] [2024-11-23 22:59:44,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128446491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:44,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717617471] [2024-11-23 22:59:44,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:44,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:44,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:44,064 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:44,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 22:59:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:44,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 22:59:44,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:45,098 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 22:59:45,098 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:45,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717617471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:45,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:59:45,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-23 22:59:45,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369427624] [2024-11-23 22:59:45,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:45,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:59:45,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:45,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:59:45,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:59:45,100 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) [2024-11-23 22:59:45,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:45,182 INFO L93 Difference]: Finished difference Result 803 states and 1196 transitions. [2024-11-23 22:59:45,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:45,183 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 [2024-11-23 22:59:45,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:45,188 INFO L225 Difference]: With dead ends: 803 [2024-11-23 22:59:45,188 INFO L226 Difference]: Without dead ends: 800 [2024-11-23 22:59:45,189 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 [2024-11-23 22:59:45,190 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 [2024-11-23 22:59:45,191 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] [2024-11-23 22:59:45,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-23 22:59:45,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 800. [2024-11-23 22:59:45,259 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) [2024-11-23 22:59:45,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1193 transitions. [2024-11-23 22:59:45,266 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1193 transitions. Word has length 48 [2024-11-23 22:59:45,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:45,266 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1193 transitions. [2024-11-23 22:59:45,267 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) [2024-11-23 22:59:45,267 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1193 transitions. [2024-11-23 22:59:45,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-23 22:59:45,267 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:45,268 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] [2024-11-23 22:59:45,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 22:59:45,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:45,469 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:45,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:45,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1413633514, now seen corresponding path program 1 times [2024-11-23 22:59:45,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:45,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166924175] [2024-11-23 22:59:45,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:45,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:45,664 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 22:59:45,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:45,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166924175] [2024-11-23 22:59:45,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166924175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:45,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:45,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:59:45,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411571711] [2024-11-23 22:59:45,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:45,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:45,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:45,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:45,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:59:45,666 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) [2024-11-23 22:59:45,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:45,744 INFO L93 Difference]: Finished difference Result 802 states and 1194 transitions. [2024-11-23 22:59:45,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:45,744 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 [2024-11-23 22:59:45,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:45,750 INFO L225 Difference]: With dead ends: 802 [2024-11-23 22:59:45,750 INFO L226 Difference]: Without dead ends: 799 [2024-11-23 22:59:45,751 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 [2024-11-23 22:59:45,752 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 [2024-11-23 22:59:45,753 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] [2024-11-23 22:59:45,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-23 22:59:45,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 799. [2024-11-23 22:59:45,823 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) [2024-11-23 22:59:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1191 transitions. [2024-11-23 22:59:45,829 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1191 transitions. Word has length 49 [2024-11-23 22:59:45,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:45,829 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1191 transitions. [2024-11-23 22:59:45,829 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) [2024-11-23 22:59:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1191 transitions. [2024-11-23 22:59:45,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-23 22:59:45,830 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:45,830 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] [2024-11-23 22:59:45,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 22:59:45,831 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:45,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:45,831 INFO L85 PathProgramCache]: Analyzing trace with hash 872695586, now seen corresponding path program 1 times [2024-11-23 22:59:45,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:45,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800074144] [2024-11-23 22:59:45,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:45,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:45,974 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 22:59:45,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:45,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800074144] [2024-11-23 22:59:45,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800074144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:45,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:45,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:59:45,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882840260] [2024-11-23 22:59:45,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:45,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:45,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:45,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:45,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:59:45,976 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) [2024-11-23 22:59:46,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:46,052 INFO L93 Difference]: Finished difference Result 801 states and 1192 transitions. [2024-11-23 22:59:46,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:46,052 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 [2024-11-23 22:59:46,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:46,060 INFO L225 Difference]: With dead ends: 801 [2024-11-23 22:59:46,060 INFO L226 Difference]: Without dead ends: 798 [2024-11-23 22:59:46,061 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 [2024-11-23 22:59:46,063 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 [2024-11-23 22:59:46,064 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] [2024-11-23 22:59:46,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-23 22:59:46,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-11-23 22:59:46,135 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) [2024-11-23 22:59:46,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1189 transitions. [2024-11-23 22:59:46,141 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1189 transitions. Word has length 50 [2024-11-23 22:59:46,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:46,142 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1189 transitions. [2024-11-23 22:59:46,143 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) [2024-11-23 22:59:46,143 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1189 transitions. [2024-11-23 22:59:46,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-23 22:59:46,144 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:46,144 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] [2024-11-23 22:59:46,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 22:59:46,144 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:46,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:46,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1283493869, now seen corresponding path program 1 times [2024-11-23 22:59:46,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:46,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251065369] [2024-11-23 22:59:46,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:46,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 22:59:46,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:46,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251065369] [2024-11-23 22:59:46,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251065369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:46,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:46,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:59:46,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244372724] [2024-11-23 22:59:46,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:46,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:46,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:46,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:46,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:59:46,337 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) [2024-11-23 22:59:46,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:46,399 INFO L93 Difference]: Finished difference Result 798 states and 1189 transitions. [2024-11-23 22:59:46,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:46,400 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 [2024-11-23 22:59:46,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:46,402 INFO L225 Difference]: With dead ends: 798 [2024-11-23 22:59:46,402 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 22:59:46,404 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 [2024-11-23 22:59:46,404 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 [2024-11-23 22:59:46,405 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] [2024-11-23 22:59:46,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 22:59:46,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 22:59:46,405 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) [2024-11-23 22:59:46,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 22:59:46,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2024-11-23 22:59:46,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:46,406 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 22:59:46,407 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) [2024-11-23 22:59:46,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 22:59:46,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 22:59:46,409 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 22:59:46,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 22:59:46,413 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:46,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 22:59:52,530 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 22:59:52,544 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-23 22:59:52,545 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-23 22:59:52,545 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-23 22:59:52,545 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-23 22:59:52,548 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-23 22:59:52,548 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-23 22:59:52,548 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-23 22:59:52,548 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-23 22:59:52,549 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-23 22:59:52,549 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-23 22:59:52,549 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-23 22:59:52,549 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-23 22:59:52,550 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-23 22:59:52,550 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-23 22:59:52,550 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-23 22:59:52,550 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-23 22:59:52,551 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-23 22:59:52,551 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-23 22:59:52,551 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-23 22:59:52,551 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-23 22:59:52,552 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-23 22:59:52,552 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-23 22:59:52,552 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-23 22:59:52,552 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-23 22:59:52,553 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!base [2024-11-23 22:59:52,553 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_urb~0!offset [2024-11-23 22:59:52,553 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!base [2024-11-23 22:59:52,553 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~usb_dev~0!offset [2024-11-23 22:59:52,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:59:52 BoogieIcfgContainer [2024-11-23 22:59:52,554 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 22:59:52,554 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:59:52,554 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:59:52,555 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:59:52,556 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:59:37" (3/4) ... [2024-11-23 22:59:52,558 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 22:59:52,564 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure netdev_priv [2024-11-23 22:59:52,564 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure outb [2024-11-23 22:59:52,564 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure check_mirror [2024-11-23 22:59:52,564 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure iounmap [2024-11-23 22:59:52,564 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __release_region [2024-11-23 22:59:52,564 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2024-11-23 22:59:52,564 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure free_irq [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writeb [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __const_udelay [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ioremap [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __request_region [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_irq_1 [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure disable_suitable_irq_1 [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-11-23 22:59:52,565 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure readb [2024-11-23 22:59:52,567 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure inb [2024-11-23 22:59:52,568 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure free_netdev [2024-11-23 22:59:52,605 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 187 nodes and edges [2024-11-23 22:59:52,609 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 85 nodes and edges [2024-11-23 22:59:52,611 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-23 22:59:52,613 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-23 22:59:52,616 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-23 22:59:52,618 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-23 22:59:52,621 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-23 22:59:52,623 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 22:59:52,866 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 22:59:52,866 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 22:59:52,866 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:59:52,867 INFO L158 Benchmark]: Toolchain (without parser) took 20262.12ms. Allocated memory was 117.4MB in the beginning and 427.8MB in the end (delta: 310.4MB). Free memory was 85.2MB in the beginning and 144.7MB in the end (delta: -59.5MB). Peak memory consumption was 249.9MB. Max. memory is 16.1GB. [2024-11-23 22:59:52,867 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:59:52,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1657.36ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 85.0MB in the beginning and 107.2MB in the end (delta: -22.2MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2024-11-23 22:59:52,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 153.14ms. Allocated memory is still 184.5MB. Free memory was 107.2MB in the beginning and 96.5MB in the end (delta: 10.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:59:52,869 INFO L158 Benchmark]: Boogie Preprocessor took 247.67ms. Allocated memory is still 184.5MB. Free memory was 96.5MB in the beginning and 78.7MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:59:52,870 INFO L158 Benchmark]: RCFGBuilder took 2748.92ms. Allocated memory is still 184.5MB. Free memory was 78.7MB in the beginning and 98.8MB in the end (delta: -20.1MB). Peak memory consumption was 63.2MB. Max. memory is 16.1GB. [2024-11-23 22:59:52,870 INFO L158 Benchmark]: TraceAbstraction took 15129.81ms. Allocated memory was 184.5MB in the beginning and 427.8MB in the end (delta: 243.3MB). Free memory was 98.8MB in the beginning and 169.6MB in the end (delta: -70.8MB). Peak memory consumption was 236.0MB. Max. memory is 16.1GB. [2024-11-23 22:59:52,871 INFO L158 Benchmark]: Witness Printer took 312.00ms. Allocated memory is still 427.8MB. Free memory was 169.6MB in the beginning and 144.7MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 22:59:52,873 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 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1657.36ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 85.0MB in the beginning and 107.2MB in the end (delta: -22.2MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 153.14ms. Allocated memory is still 184.5MB. Free memory was 107.2MB in the beginning and 96.5MB in the end (delta: 10.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 247.67ms. Allocated memory is still 184.5MB. Free memory was 96.5MB in the beginning and 78.7MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 2748.92ms. Allocated memory is still 184.5MB. Free memory was 78.7MB in the beginning and 98.8MB in the end (delta: -20.1MB). Peak memory consumption was 63.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15129.81ms. Allocated memory was 184.5MB in the beginning and 427.8MB in the end (delta: 243.3MB). Free memory was 98.8MB in the beginning and 169.6MB in the end (delta: -70.8MB). Peak memory consumption was 236.0MB. Max. memory is 16.1GB. * Witness Printer took 312.00ms. Allocated memory is still 427.8MB. Free memory was 169.6MB in the beginning and 144.7MB in the end (delta: 24.9MB). 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: 8.9s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, 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, 0.1s 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, 0.1s 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: 0.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.2s 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! [2024-11-23 22:59:52,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b277318-cd4a-4e0f-b39c-92bc7f8b1f6a/bin/uautomizer-verify-LYvppIcaGC/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