./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.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_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/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_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/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_881e901f-35d5-4865-8fc6-861466146392/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 410663f06ff647e412b04b4e33dc5a0aa773139e9be33f59003b35b6e81927a8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:46:23,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:46:23,184 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 23:46:23,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:46:23,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:46:23,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:46:23,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:46:23,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:46:23,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:46:23,235 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:46:23,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:46:23,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:46:23,235 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:46:23,236 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:46:23,236 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:46:23,236 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:46:23,236 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:46:23,236 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:46:23,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:46:23,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:46:23,237 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:46:23,237 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:46:23,237 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:46:23,237 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:46:23,237 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:46:23,237 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:46:23,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:46:23,238 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:46:23,238 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:46:23,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:46:23,238 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:46:23,238 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:46:23,238 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:46:23,238 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:46:23,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:46:23,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:46:23,239 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:46:23,239 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:46:23,239 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:46:23,239 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:46:23,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:46:23,239 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:46:23,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:46:23,239 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:46:23,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:46:23,240 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_881e901f-35d5-4865-8fc6-861466146392/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 -> 410663f06ff647e412b04b4e33dc5a0aa773139e9be33f59003b35b6e81927a8 [2024-11-23 23:46:23,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:46:23,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:46:23,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:46:23,602 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:46:23,603 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:46:23,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2024-11-23 23:46:26,966 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/data/cbacf2509/8ddd98b4713b4150bc698fe3c56e5268/FLAG50b565b6e [2024-11-23 23:46:27,552 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:46:27,553 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2024-11-23 23:46:27,584 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/data/cbacf2509/8ddd98b4713b4150bc698fe3c56e5268/FLAG50b565b6e [2024-11-23 23:46:27,601 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/data/cbacf2509/8ddd98b4713b4150bc698fe3c56e5268 [2024-11-23 23:46:27,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:46:27,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:46:27,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:46:27,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:46:27,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:46:27,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:46:27" (1/1) ... [2024-11-23 23:46:27,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eeb7221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:27, skipping insertion in model container [2024-11-23 23:46:27,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:46:27" (1/1) ... [2024-11-23 23:46:27,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:46:28,583 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_881e901f-35d5-4865-8fc6-861466146392/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2024-11-23 23:46:28,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:46:28,773 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:46:28,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [2808] [2024-11-23 23:46:28,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [2815-2816] [2024-11-23 23:46:29,086 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_881e901f-35d5-4865-8fc6-861466146392/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2024-11-23 23:46:29,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:46:29,199 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:46:29,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29 WrapperNode [2024-11-23 23:46:29,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:46:29,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:46:29,201 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:46:29,201 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:46:29,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,425 INFO L138 Inliner]: procedures = 133, calls = 1232, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 1948 [2024-11-23 23:46:29,426 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:46:29,427 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:46:29,427 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:46:29,427 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:46:29,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,632 INFO L175 MemorySlicer]: Split 952 memory accesses to 22 slices as follows [2, 3, 5, 32, 1, 6, 6, 512, 5, 28, 3, 11, 1, 1, 2, 13, 2, 24, 273, 5, 3, 14]. 54 percent of accesses are in the largest equivalence class. The 780 initializations are split as follows [2, 3, 5, 24, 1, 6, 4, 512, 0, 0, 0, 11, 0, 0, 0, 13, 0, 0, 180, 5, 0, 14]. The 103 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 5, 28, 1, 0, 0, 0, 2, 0, 1, 24, 40, 0, 2, 0]. [2024-11-23 23:46:29,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,734 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:46:29,840 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:46:29,840 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:46:29,840 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:46:29,841 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (1/1) ... [2024-11-23 23:46:29,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:46:29,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:46:29,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:46:29,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:46:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2024-11-23 23:46:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2024-11-23 23:46:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-11-23 23:46:29,930 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-11-23 23:46:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2024-11-23 23:46:29,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2024-11-23 23:46:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2024-11-23 23:46:29,931 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2024-11-23 23:46:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 23:46:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 23:46:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-23 23:46:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-23 23:46:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-23 23:46:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-23 23:46:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-23 23:46:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-23 23:46:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-23 23:46:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-23 23:46:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-23 23:46:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-23 23:46:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-23 23:46:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-23 23:46:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-23 23:46:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-23 23:46:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-23 23:46:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-23 23:46:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-23 23:46:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-23 23:46:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-11-23 23:46:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-11-23 23:46:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 23:46:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 23:46:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-23 23:46:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-23 23:46:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-11-23 23:46:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-11-23 23:46:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-11-23 23:46:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-11-23 23:46:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-11-23 23:46:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-11-23 23:46:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 23:46:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 23:46:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 23:46:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 23:46:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 23:46:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 23:46:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 23:46:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-23 23:46:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-23 23:46:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-23 23:46:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-23 23:46:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-23 23:46:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-23 23:46:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-23 23:46:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-23 23:46:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-23 23:46:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-23 23:46:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-23 23:46:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-23 23:46:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-23 23:46:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-23 23:46:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-23 23:46:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2024-11-23 23:46:29,943 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2024-11-23 23:46:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-23 23:46:29,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-23 23:46:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure pg_sleep [2024-11-23 23:46:29,946 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_sleep [2024-11-23 23:46:29,946 INFO L130 BoogieDeclarations]: Found specification of procedure pg_completion [2024-11-23 23:46:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_completion [2024-11-23 23:46:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 23:46:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 23:46:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 23:46:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 23:46:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 23:46:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 23:46:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 23:46:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-23 23:46:29,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-23 23:46:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-23 23:46:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-23 23:46:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-23 23:46:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-23 23:46:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-23 23:46:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-23 23:46:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-23 23:46:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-23 23:46:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-23 23:46:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-23 23:46:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-23 23:46:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-23 23:46:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-23 23:46:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-23 23:46:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-23 23:46:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-23 23:46:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-23 23:46:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure pg_wait [2024-11-23 23:46:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_wait [2024-11-23 23:46:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-23 23:46:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-23 23:46:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-23 23:46:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-23 23:46:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-23 23:46:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-23 23:46:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 23:46:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-23 23:46:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-23 23:46:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-23 23:46:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-23 23:46:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:46:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_11 [2024-11-23 23:46:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_11 [2024-11-23 23:46:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 23:46:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 23:46:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 23:46:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 23:46:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-23 23:46:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2024-11-23 23:46:29,955 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure pg_write [2024-11-23 23:46:29,955 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_write [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-23 23:46:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-23 23:46:29,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-23 23:46:29,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-23 23:46:29,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-23 23:46:29,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-23 23:46:29,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-23 23:46:29,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-23 23:46:29,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-23 23:46:29,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-23 23:46:29,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-23 23:46:29,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-23 23:46:29,961 INFO L130 BoogieDeclarations]: Found specification of procedure pg_reset [2024-11-23 23:46:29,962 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_reset [2024-11-23 23:46:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure pg_identify [2024-11-23 23:46:29,962 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_identify [2024-11-23 23:46:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2024-11-23 23:46:29,962 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2024-11-23 23:46:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 23:46:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 23:46:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 23:46:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 23:46:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 23:46:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 23:46:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 23:46:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-23 23:46:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-23 23:46:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-23 23:46:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-23 23:46:29,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-23 23:46:29,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-23 23:46:29,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-23 23:46:29,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-23 23:46:29,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-23 23:46:29,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-23 23:46:29,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-23 23:46:29,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-23 23:46:29,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-23 23:46:29,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-23 23:46:29,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2024-11-23 23:46:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2024-11-23 23:46:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-23 23:46:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-23 23:46:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure pg_probe [2024-11-23 23:46:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_probe [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2024-11-23 23:46:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure pg_command [2024-11-23 23:46:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_command [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:46:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-23 23:46:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-23 23:46:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-23 23:46:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-23 23:46:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:46:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:46:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2024-11-23 23:46:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2024-11-23 23:46:30,670 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:46:30,673 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:46:38,223 INFO L? ?]: Removed 571 outVars from TransFormulas that were not future-live. [2024-11-23 23:46:38,223 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:46:38,260 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:46:38,260 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 23:46:38,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:46:38 BoogieIcfgContainer [2024-11-23 23:46:38,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:46:38,271 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:46:38,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:46:38,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:46:38,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:46:27" (1/3) ... [2024-11-23 23:46:38,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d3dbd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:46:38, skipping insertion in model container [2024-11-23 23:46:38,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:46:29" (2/3) ... [2024-11-23 23:46:38,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d3dbd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:46:38, skipping insertion in model container [2024-11-23 23:46:38,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:46:38" (3/3) ... [2024-11-23 23:46:38,281 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2024-11-23 23:46:38,298 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:46:38,301 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i that has 32 procedures, 529 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-23 23:46:38,402 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:46:38,424 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;@59c8d209, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:46:38,424 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:46:38,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 529 states, 394 states have (on average 1.368020304568528) internal successors, (539), 404 states have internal predecessors, (539), 102 states have call successors, (102), 31 states have call predecessors, (102), 31 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-23 23:46:38,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-23 23:46:38,445 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:46:38,447 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:46:38,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:46:38,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:38,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1705185471, now seen corresponding path program 1 times [2024-11-23 23:46:38,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:46:38,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538188681] [2024-11-23 23:46:38,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:38,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:46:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:40,437 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 23:46:40,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:46:40,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538188681] [2024-11-23 23:46:40,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538188681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:40,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:46:40,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:46:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482725758] [2024-11-23 23:46:40,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:40,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:46:40,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:46:40,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:46:40,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:46:40,486 INFO L87 Difference]: Start difference. First operand has 529 states, 394 states have (on average 1.368020304568528) internal successors, (539), 404 states have internal predecessors, (539), 102 states have call successors, (102), 31 states have call predecessors, (102), 31 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 23:46:40,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:46:40,895 INFO L93 Difference]: Finished difference Result 1382 states and 1968 transitions. [2024-11-23 23:46:40,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:46:40,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 16 [2024-11-23 23:46:40,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:46:40,926 INFO L225 Difference]: With dead ends: 1382 [2024-11-23 23:46:40,926 INFO L226 Difference]: Without dead ends: 848 [2024-11-23 23:46:40,935 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 23:46:40,939 INFO L435 NwaCegarLoop]: 904 mSDtfsCounter, 462 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:46:40,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1598 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:46:40,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-23 23:46:41,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 820. [2024-11-23 23:46:41,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 604 states have (on average 1.3526490066225165) internal successors, (817), 614 states have internal predecessors, (817), 165 states have call successors, (165), 51 states have call predecessors, (165), 50 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-11-23 23:46:41,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1141 transitions. [2024-11-23 23:46:41,133 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1141 transitions. Word has length 16 [2024-11-23 23:46:41,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:46:41,133 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1141 transitions. [2024-11-23 23:46:41,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 23:46:41,134 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1141 transitions. [2024-11-23 23:46:41,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-23 23:46:41,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:46:41,136 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:46:41,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:46:41,136 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:46:41,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:41,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1939651144, now seen corresponding path program 1 times [2024-11-23 23:46:41,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:46:41,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698103791] [2024-11-23 23:46:41,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:41,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:46:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:42,366 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 23:46:42,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:46:42,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698103791] [2024-11-23 23:46:42,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698103791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:42,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:46:42,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:46:42,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102676465] [2024-11-23 23:46:42,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:42,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:46:42,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:46:42,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:46:42,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:46:42,373 INFO L87 Difference]: Start difference. First operand 820 states and 1141 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 23:46:42,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:46:42,516 INFO L93 Difference]: Finished difference Result 1637 states and 2279 transitions. [2024-11-23 23:46:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:46:42,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 19 [2024-11-23 23:46:42,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:46:42,529 INFO L225 Difference]: With dead ends: 1637 [2024-11-23 23:46:42,531 INFO L226 Difference]: Without dead ends: 820 [2024-11-23 23:46:42,535 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 23:46:42,536 INFO L435 NwaCegarLoop]: 727 mSDtfsCounter, 718 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 727 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 23:46:42,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 727 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:46:42,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-23 23:46:42,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 820. [2024-11-23 23:46:42,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 604 states have (on average 1.349337748344371) internal successors, (815), 614 states have internal predecessors, (815), 165 states have call successors, (165), 51 states have call predecessors, (165), 50 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-11-23 23:46:42,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1139 transitions. [2024-11-23 23:46:42,636 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1139 transitions. Word has length 19 [2024-11-23 23:46:42,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:46:42,637 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1139 transitions. [2024-11-23 23:46:42,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 23:46:42,637 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1139 transitions. [2024-11-23 23:46:42,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-23 23:46:42,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:46:42,639 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 23:46:42,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:46:42,640 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:46:42,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:42,644 INFO L85 PathProgramCache]: Analyzing trace with hash 905071542, now seen corresponding path program 1 times [2024-11-23 23:46:42,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:46:42,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67540668] [2024-11-23 23:46:42,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:42,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:46:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:43,817 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 23:46:43,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:46:43,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67540668] [2024-11-23 23:46:43,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67540668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:43,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:46:43,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:46:43,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115648294] [2024-11-23 23:46:43,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:43,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:46:43,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:46:43,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:46:43,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:46:43,821 INFO L87 Difference]: Start difference. First operand 820 states and 1139 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:46:47,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:46:48,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:46:48,119 INFO L93 Difference]: Finished difference Result 2049 states and 2849 transitions. [2024-11-23 23:46:48,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:46:48,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-23 23:46:48,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:46:48,136 INFO L225 Difference]: With dead ends: 2049 [2024-11-23 23:46:48,137 INFO L226 Difference]: Without dead ends: 1232 [2024-11-23 23:46:48,141 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 23:46:48,142 INFO L435 NwaCegarLoop]: 1117 mSDtfsCounter, 675 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:46:48,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 1700 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:46:48,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-11-23 23:46:48,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1228. [2024-11-23 23:46:48,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 909 states have (on average 1.353135313531353) internal successors, (1230), 921 states have internal predecessors, (1230), 240 states have call successors, (240), 79 states have call predecessors, (240), 78 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2024-11-23 23:46:48,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1704 transitions. [2024-11-23 23:46:48,270 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1704 transitions. Word has length 25 [2024-11-23 23:46:48,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:46:48,271 INFO L471 AbstractCegarLoop]: Abstraction has 1228 states and 1704 transitions. [2024-11-23 23:46:48,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:46:48,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1704 transitions. [2024-11-23 23:46:48,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-23 23:46:48,276 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:46:48,276 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] [2024-11-23 23:46:48,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:46:48,277 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:46:48,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:48,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1343734521, now seen corresponding path program 1 times [2024-11-23 23:46:48,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:46:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749302305] [2024-11-23 23:46:48,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:48,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:46:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:49,206 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 23:46:49,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:46:49,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749302305] [2024-11-23 23:46:49,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749302305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:49,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:46:49,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:46:49,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201491862] [2024-11-23 23:46:49,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:49,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:46:49,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:46:49,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:46:49,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:46:49,211 INFO L87 Difference]: Start difference. First operand 1228 states and 1704 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:46:49,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:46:49,386 INFO L93 Difference]: Finished difference Result 2467 states and 3427 transitions. [2024-11-23 23:46:49,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:46:49,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-23 23:46:49,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:46:49,402 INFO L225 Difference]: With dead ends: 2467 [2024-11-23 23:46:49,403 INFO L226 Difference]: Without dead ends: 1242 [2024-11-23 23:46:49,410 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 23:46:49,411 INFO L435 NwaCegarLoop]: 725 mSDtfsCounter, 7 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:46:49,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1447 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:46:49,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2024-11-23 23:46:49,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1230. [2024-11-23 23:46:49,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 911 states have (on average 1.3523600439077936) internal successors, (1232), 923 states have internal predecessors, (1232), 240 states have call successors, (240), 79 states have call predecessors, (240), 78 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2024-11-23 23:46:49,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1706 transitions. [2024-11-23 23:46:49,537 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1706 transitions. Word has length 30 [2024-11-23 23:46:49,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:46:49,538 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 1706 transitions. [2024-11-23 23:46:49,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:46:49,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1706 transitions. [2024-11-23 23:46:49,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-23 23:46:49,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:46:49,539 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] [2024-11-23 23:46:49,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:46:49,540 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:46:49,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:49,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1913217502, now seen corresponding path program 1 times [2024-11-23 23:46:49,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:46:49,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747296127] [2024-11-23 23:46:49,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:49,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:46:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:50,801 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 23:46:50,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:46:50,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747296127] [2024-11-23 23:46:50,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747296127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:46:50,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548407345] [2024-11-23 23:46:50,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:50,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:46:50,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:46:50,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:46:50,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:46:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:52,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 2581 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:46:52,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:46:52,693 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 23:46:52,693 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:46:52,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548407345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:52,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:46:52,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 23:46:52,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354846627] [2024-11-23 23:46:52,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:52,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:46:52,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:46:52,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:46:52,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:46:52,696 INFO L87 Difference]: Start difference. First operand 1230 states and 1706 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 23:46:52,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:46:52,812 INFO L93 Difference]: Finished difference Result 2483 states and 3451 transitions. [2024-11-23 23:46:52,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:46:52,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 40 [2024-11-23 23:46:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:46:52,824 INFO L225 Difference]: With dead ends: 2483 [2024-11-23 23:46:52,824 INFO L226 Difference]: Without dead ends: 1256 [2024-11-23 23:46:52,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:46:52,831 INFO L435 NwaCegarLoop]: 725 mSDtfsCounter, 19 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:46:52,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1435 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:46:52,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2024-11-23 23:46:52,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1256. [2024-11-23 23:46:52,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 931 states have (on average 1.3533834586466165) internal successors, (1260), 943 states have internal predecessors, (1260), 246 states have call successors, (246), 79 states have call predecessors, (246), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2024-11-23 23:46:52,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1746 transitions. [2024-11-23 23:46:52,935 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1746 transitions. Word has length 40 [2024-11-23 23:46:52,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:46:52,936 INFO L471 AbstractCegarLoop]: Abstraction has 1256 states and 1746 transitions. [2024-11-23 23:46:52,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 23:46:52,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1746 transitions. [2024-11-23 23:46:52,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-23 23:46:52,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:46:52,941 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:46:52,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:46:53,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:46:53,145 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:46:53,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2096014832, now seen corresponding path program 1 times [2024-11-23 23:46:53,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:46:53,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561376947] [2024-11-23 23:46:53,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:53,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:46:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:54,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:46:54,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:46:54,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561376947] [2024-11-23 23:46:54,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561376947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:46:54,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315783692] [2024-11-23 23:46:54,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:54,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:46:54,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:46:54,310 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:46:54,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:46:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:56,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 2599 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:46:56,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:46:56,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:46:56,080 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:46:56,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315783692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:56,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:46:56,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 23:46:56,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102602740] [2024-11-23 23:46:56,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:56,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:46:56,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:46:56,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:46:56,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:46:56,083 INFO L87 Difference]: Start difference. First operand 1256 states and 1746 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 23:46:56,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:46:56,252 INFO L93 Difference]: Finished difference Result 1278 states and 1772 transitions. [2024-11-23 23:46:56,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:46:56,253 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2024-11-23 23:46:56,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:46:56,265 INFO L225 Difference]: With dead ends: 1278 [2024-11-23 23:46:56,265 INFO L226 Difference]: Without dead ends: 1267 [2024-11-23 23:46:56,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:46:56,270 INFO L435 NwaCegarLoop]: 740 mSDtfsCounter, 723 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:46:56,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 753 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:46:56,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-11-23 23:46:56,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1256. [2024-11-23 23:46:56,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 931 states have (on average 1.351235230934479) internal successors, (1258), 943 states have internal predecessors, (1258), 246 states have call successors, (246), 79 states have call predecessors, (246), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2024-11-23 23:46:56,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1744 transitions. [2024-11-23 23:46:56,367 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1744 transitions. Word has length 45 [2024-11-23 23:46:56,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:46:56,370 INFO L471 AbstractCegarLoop]: Abstraction has 1256 states and 1744 transitions. [2024-11-23 23:46:56,370 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 23:46:56,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1744 transitions. [2024-11-23 23:46:56,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-23 23:46:56,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:46:56,372 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:46:56,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:46:56,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:46:56,573 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:46:56,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:46:56,573 INFO L85 PathProgramCache]: Analyzing trace with hash -2038756530, now seen corresponding path program 1 times [2024-11-23 23:46:56,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:46:56,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029893342] [2024-11-23 23:46:56,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:56,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:46:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:57,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:46:57,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:46:57,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029893342] [2024-11-23 23:46:57,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029893342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:46:57,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832380493] [2024-11-23 23:46:57,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:46:57,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:46:57,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:46:57,430 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:46:57,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:46:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:46:59,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 2596 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:46:59,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:46:59,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:46:59,258 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:46:59,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832380493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:46:59,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:46:59,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 23:46:59,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206173185] [2024-11-23 23:46:59,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:46:59,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:46:59,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:46:59,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:46:59,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:46:59,260 INFO L87 Difference]: Start difference. First operand 1256 states and 1744 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 23:47:03,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:47:03,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:03,438 INFO L93 Difference]: Finished difference Result 1258 states and 1745 transitions. [2024-11-23 23:47:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:47:03,439 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2024-11-23 23:47:03,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:03,449 INFO L225 Difference]: With dead ends: 1258 [2024-11-23 23:47:03,449 INFO L226 Difference]: Without dead ends: 1255 [2024-11-23 23:47:03,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:03,453 INFO L435 NwaCegarLoop]: 725 mSDtfsCounter, 686 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:03,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 725 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:47:03,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-11-23 23:47:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2024-11-23 23:47:03,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 931 states have (on average 1.3501611170784102) internal successors, (1257), 942 states have internal predecessors, (1257), 245 states have call successors, (245), 79 states have call predecessors, (245), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2024-11-23 23:47:03,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1742 transitions. [2024-11-23 23:47:03,553 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1742 transitions. Word has length 45 [2024-11-23 23:47:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:03,555 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1742 transitions. [2024-11-23 23:47:03,555 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 23:47:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1742 transitions. [2024-11-23 23:47:03,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-23 23:47:03,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:03,558 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:47:03,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:47:03,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:03,759 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:47:03,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:03,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1222830710, now seen corresponding path program 1 times [2024-11-23 23:47:03,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:47:03,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603089868] [2024-11-23 23:47:03,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:03,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:47:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:04,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:47:04,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:47:04,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603089868] [2024-11-23 23:47:04,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603089868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:47:04,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815460530] [2024-11-23 23:47:04,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:04,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:04,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:04,671 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:04,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:47:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:06,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 2598 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:47:06,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:47:06,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:06,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815460530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:06,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:47:06,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 23:47:06,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804324795] [2024-11-23 23:47:06,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:06,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:47:06,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:47:06,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:47:06,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:06,332 INFO L87 Difference]: Start difference. First operand 1255 states and 1742 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 23:47:10,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:47:10,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:10,480 INFO L93 Difference]: Finished difference Result 1257 states and 1743 transitions. [2024-11-23 23:47:10,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:47:10,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2024-11-23 23:47:10,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:10,492 INFO L225 Difference]: With dead ends: 1257 [2024-11-23 23:47:10,492 INFO L226 Difference]: Without dead ends: 1254 [2024-11-23 23:47:10,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:10,494 INFO L435 NwaCegarLoop]: 723 mSDtfsCounter, 683 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:10,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 723 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:47:10,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2024-11-23 23:47:10,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1254. [2024-11-23 23:47:10,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 931 states have (on average 1.3490870032223417) internal successors, (1256), 941 states have internal predecessors, (1256), 244 states have call successors, (244), 79 states have call predecessors, (244), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2024-11-23 23:47:10,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1740 transitions. [2024-11-23 23:47:10,590 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1740 transitions. Word has length 46 [2024-11-23 23:47:10,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:10,591 INFO L471 AbstractCegarLoop]: Abstraction has 1254 states and 1740 transitions. [2024-11-23 23:47:10,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 23:47:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1740 transitions. [2024-11-23 23:47:10,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-23 23:47:10,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:10,593 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:47:10,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:47:10,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:10,794 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:47:10,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:10,794 INFO L85 PathProgramCache]: Analyzing trace with hash -747175087, now seen corresponding path program 1 times [2024-11-23 23:47:10,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:47:10,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806318812] [2024-11-23 23:47:10,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:10,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:47:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:11,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:47:11,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:47:11,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806318812] [2024-11-23 23:47:11,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806318812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:47:11,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274274961] [2024-11-23 23:47:11,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:11,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:11,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:11,677 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:11,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:47:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:13,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 2600 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:47:13,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:47:13,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:13,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274274961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:13,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:47:13,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 23:47:13,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739646909] [2024-11-23 23:47:13,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:13,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:47:13,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:47:13,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:47:13,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:13,240 INFO L87 Difference]: Start difference. First operand 1254 states and 1740 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 23:47:17,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:47:17,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:17,395 INFO L93 Difference]: Finished difference Result 1256 states and 1741 transitions. [2024-11-23 23:47:17,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:47:17,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2024-11-23 23:47:17,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:17,406 INFO L225 Difference]: With dead ends: 1256 [2024-11-23 23:47:17,406 INFO L226 Difference]: Without dead ends: 1253 [2024-11-23 23:47:17,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:17,408 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 680 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:17,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 721 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:47:17,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2024-11-23 23:47:17,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1253. [2024-11-23 23:47:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 931 states have (on average 1.3480128893662728) internal successors, (1255), 940 states have internal predecessors, (1255), 243 states have call successors, (243), 79 states have call predecessors, (243), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2024-11-23 23:47:17,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1738 transitions. [2024-11-23 23:47:17,507 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1738 transitions. Word has length 47 [2024-11-23 23:47:17,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:17,508 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 1738 transitions. [2024-11-23 23:47:17,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 23:47:17,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1738 transitions. [2024-11-23 23:47:17,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-23 23:47:17,509 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:17,509 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:47:17,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:47:17,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:17,711 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:47:17,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:17,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1687807783, now seen corresponding path program 1 times [2024-11-23 23:47:17,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:47:17,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035063615] [2024-11-23 23:47:17,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:17,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:47:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:18,943 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:47:18,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:47:18,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035063615] [2024-11-23 23:47:18,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035063615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:47:18,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767033231] [2024-11-23 23:47:18,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:18,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:18,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:18,946 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:18,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:47:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:20,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 2602 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:47:20,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:20,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:47:20,612 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:20,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767033231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:20,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:47:20,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 23:47:20,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677853824] [2024-11-23 23:47:20,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:20,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:47:20,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:47:20,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:47:20,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:20,614 INFO L87 Difference]: Start difference. First operand 1253 states and 1738 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 23:47:24,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:47:24,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:24,834 INFO L93 Difference]: Finished difference Result 1677 states and 2306 transitions. [2024-11-23 23:47:24,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:47:24,835 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-11-23 23:47:24,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:24,849 INFO L225 Difference]: With dead ends: 1677 [2024-11-23 23:47:24,849 INFO L226 Difference]: Without dead ends: 1640 [2024-11-23 23:47:24,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:24,852 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 635 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:24,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 1126 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:47:24,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2024-11-23 23:47:24,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1640. [2024-11-23 23:47:24,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1640 states, 1196 states have (on average 1.330267558528428) internal successors, (1591), 1207 states have internal predecessors, (1591), 334 states have call successors, (334), 110 states have call predecessors, (334), 109 states have return successors, (333), 333 states have call predecessors, (333), 333 states have call successors, (333) [2024-11-23 23:47:25,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 2258 transitions. [2024-11-23 23:47:25,005 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 2258 transitions. Word has length 48 [2024-11-23 23:47:25,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:25,005 INFO L471 AbstractCegarLoop]: Abstraction has 1640 states and 2258 transitions. [2024-11-23 23:47:25,005 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-23 23:47:25,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 2258 transitions. [2024-11-23 23:47:25,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-23 23:47:25,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:25,008 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:47:25,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 23:47:25,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 23:47:25,209 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:47:25,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:25,210 INFO L85 PathProgramCache]: Analyzing trace with hash -300997162, now seen corresponding path program 1 times [2024-11-23 23:47:25,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:47:25,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783063566] [2024-11-23 23:47:25,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:25,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:47:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 23:47:26,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:47:26,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783063566] [2024-11-23 23:47:26,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783063566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:47:26,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381175266] [2024-11-23 23:47:26,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:26,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:26,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:26,032 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:26,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 23:47:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:27,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 2818 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:47:27,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:27,643 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 23:47:27,643 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:27,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381175266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:27,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:47:27,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 23:47:27,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588799887] [2024-11-23 23:47:27,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:27,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:47:27,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:47:27,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:47:27,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:27,648 INFO L87 Difference]: Start difference. First operand 1640 states and 2258 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:47:27,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:27,847 INFO L93 Difference]: Finished difference Result 3294 states and 4538 transitions. [2024-11-23 23:47:27,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:47:27,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 75 [2024-11-23 23:47:27,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:27,862 INFO L225 Difference]: With dead ends: 3294 [2024-11-23 23:47:27,862 INFO L226 Difference]: Without dead ends: 1657 [2024-11-23 23:47:27,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:27,870 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 17 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:27,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1343 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:47:27,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2024-11-23 23:47:27,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1642. [2024-11-23 23:47:27,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1198 states have (on average 1.3297161936560935) internal successors, (1593), 1209 states have internal predecessors, (1593), 334 states have call successors, (334), 110 states have call predecessors, (334), 109 states have return successors, (333), 333 states have call predecessors, (333), 333 states have call successors, (333) [2024-11-23 23:47:28,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2260 transitions. [2024-11-23 23:47:28,008 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2260 transitions. Word has length 75 [2024-11-23 23:47:28,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:28,009 INFO L471 AbstractCegarLoop]: Abstraction has 1642 states and 2260 transitions. [2024-11-23 23:47:28,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:47:28,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2260 transitions. [2024-11-23 23:47:28,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-23 23:47:28,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:47:28,017 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:47:28,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 23:47:28,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-23 23:47:28,219 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:47:28,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:47:28,219 INFO L85 PathProgramCache]: Analyzing trace with hash -559058879, now seen corresponding path program 1 times [2024-11-23 23:47:28,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:47:28,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445296132] [2024-11-23 23:47:28,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:28,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:47:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:29,298 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 23:47:29,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:47:29,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445296132] [2024-11-23 23:47:29,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445296132] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:47:29,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68837063] [2024-11-23 23:47:29,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:47:29,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:29,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:47:29,302 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:47:29,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 23:47:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:47:30,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 2829 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:47:30,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:47:31,029 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-23 23:47:31,029 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:47:31,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68837063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:47:31,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:47:31,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 23:47:31,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793131296] [2024-11-23 23:47:31,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:47:31,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:47:31,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:47:31,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:47:31,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:31,031 INFO L87 Difference]: Start difference. First operand 1642 states and 2260 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:47:35,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:47:35,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:47:35,248 INFO L93 Difference]: Finished difference Result 1642 states and 2260 transitions. [2024-11-23 23:47:35,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:47:35,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-23 23:47:35,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:47:35,252 INFO L225 Difference]: With dead ends: 1642 [2024-11-23 23:47:35,252 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 23:47:35,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:47:35,258 INFO L435 NwaCegarLoop]: 915 mSDtfsCounter, 330 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:47:35,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1556 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:47:35,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 23:47:35,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 23:47:35,259 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 23:47:35,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 23:47:35,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2024-11-23 23:47:35,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:47:35,262 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:47:35,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:47:35,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:47:35,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 23:47:35,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:47:35,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-23 23:47:35,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:47:35,471 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:47:35,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 23:47:57,332 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:47:57,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:47:57 BoogieIcfgContainer [2024-11-23 23:47:57,362 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:47:57,363 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:47:57,367 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:47:57,367 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:47:57,368 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:46:38" (3/4) ... [2024-11-23 23:47:57,371 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:47:57,383 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_from_user [2024-11-23 23:47:57,384 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_release [2024-11-23 23:47:57,384 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_init [2024-11-23 23:47:57,384 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_reg [2024-11-23 23:47:57,384 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_sleep [2024-11-23 23:47:57,384 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_read_regr [2024-11-23 23:47:57,384 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure might_fault [2024-11-23 23:47:57,384 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-23 23:47:57,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_disconnect [2024-11-23 23:47:57,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_probe [2024-11-23 23:47:57,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure status_reg [2024-11-23 23:47:57,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_completion [2024-11-23 23:47:57,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_unregister_chrdev_11 [2024-11-23 23:47:57,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DRIVE [2024-11-23 23:47:57,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2024-11-23 23:47:57,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_to_user [2024-11-23 23:47:57,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_wait [2024-11-23 23:47:57,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-23 23:47:57,386 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_write [2024-11-23 23:47:57,386 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_connect [2024-11-23 23:47:57,386 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_command [2024-11-23 23:47:57,386 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-11-23 23:47:57,386 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure clear_bit [2024-11-23 23:47:57,387 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_reg [2024-11-23 23:47:57,387 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_reset [2024-11-23 23:47:57,387 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-23 23:47:57,387 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2024-11-23 23:47:57,387 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-11-23 23:47:57,388 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure xs [2024-11-23 23:47:57,388 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_identify [2024-11-23 23:47:57,388 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_write_block [2024-11-23 23:47:57,427 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 212 nodes and edges [2024-11-23 23:47:57,431 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 96 nodes and edges [2024-11-23 23:47:57,435 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-23 23:47:57,438 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-23 23:47:57,441 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 23:47:57,445 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-23 23:47:57,448 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:47:57,802 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:47:57,803 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:47:57,803 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:47:57,804 INFO L158 Benchmark]: Toolchain (without parser) took 90196.08ms. Allocated memory was 117.4MB in the beginning and 780.1MB in the end (delta: 662.7MB). Free memory was 87.4MB in the beginning and 534.8MB in the end (delta: -447.4MB). Peak memory consumption was 211.7MB. Max. memory is 16.1GB. [2024-11-23 23:47:57,804 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:47:57,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1590.61ms. Allocated memory is still 117.4MB. Free memory was 87.2MB in the beginning and 63.3MB in the end (delta: 23.9MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2024-11-23 23:47:57,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 225.35ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 49.3MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:47:57,805 INFO L158 Benchmark]: Boogie Preprocessor took 410.60ms. Allocated memory is still 117.4MB. Free memory was 49.3MB in the beginning and 55.0MB in the end (delta: -5.7MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2024-11-23 23:47:57,806 INFO L158 Benchmark]: RCFGBuilder took 8421.16ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 55.0MB in the beginning and 88.9MB in the end (delta: -33.9MB). Peak memory consumption was 110.1MB. Max. memory is 16.1GB. [2024-11-23 23:47:57,806 INFO L158 Benchmark]: TraceAbstraction took 79091.23ms. Allocated memory was 234.9MB in the beginning and 780.1MB in the end (delta: 545.3MB). Free memory was 87.0MB in the beginning and 568.0MB in the end (delta: -480.9MB). Peak memory consumption was 387.5MB. Max. memory is 16.1GB. [2024-11-23 23:47:57,806 INFO L158 Benchmark]: Witness Printer took 440.31ms. Allocated memory is still 780.1MB. Free memory was 568.0MB in the beginning and 534.8MB in the end (delta: 33.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-23 23:47:57,808 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1590.61ms. Allocated memory is still 117.4MB. Free memory was 87.2MB in the beginning and 63.3MB in the end (delta: 23.9MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 225.35ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 49.3MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 410.60ms. Allocated memory is still 117.4MB. Free memory was 49.3MB in the beginning and 55.0MB in the end (delta: -5.7MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * RCFGBuilder took 8421.16ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 55.0MB in the beginning and 88.9MB in the end (delta: -33.9MB). Peak memory consumption was 110.1MB. Max. memory is 16.1GB. * TraceAbstraction took 79091.23ms. Allocated memory was 234.9MB in the beginning and 780.1MB in the end (delta: 545.3MB). Free memory was 87.0MB in the beginning and 568.0MB in the end (delta: -480.9MB). Peak memory consumption was 387.5MB. Max. memory is 16.1GB. * Witness Printer took 440.31ms. Allocated memory is still 780.1MB. Free memory was 568.0MB in the beginning and 534.8MB in the end (delta: 33.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 2808]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [2808] - GenericResultAtLocation [Line: 2815]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [2815-2816] * 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: 4044]: 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 32 procedures, 529 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 57.1s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 26.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 5644 SdHoareTripleChecker+Valid, 24.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5635 mSDsluCounter, 13854 SdHoareTripleChecker+Invalid, 24.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4370 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 9484 mSDtfsCounter, 91 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 460 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1642occurred in iteration=11, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 70 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 940 NumberOfCodeBlocks, 940 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 920 ConstructedInterpolants, 0 QuantifiedInterpolants, 1456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 21223 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 20 InterpolantComputations, 12 PerfectInterpolantSequences, 84/92 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: 3770]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 3092]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_mutex_pg_mutex == 2)) || ((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1))) - InvariantResult [Line: 3033]: Loop Invariant Derived loop invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 3254]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_mutex_pg_mutex == 2)) || ((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1))) - InvariantResult [Line: 3232]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_mutex_pg_mutex == 2)) || ((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1))) - InvariantResult [Line: 3201]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_mutex_pg_mutex == 2)) || ((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1))) - InvariantResult [Line: 3413]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 3254]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_mutex_pg_mutex == 2)) || ((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1))) - InvariantResult [Line: 3181]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_mutex_pg_mutex == 2)) || ((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1))) RESULT: Ultimate proved your program to be correct! [2024-11-23 23:47:57,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881e901f-35d5-4865-8fc6-861466146392/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