./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 86380eb8807c8834472c3c5bc5f358e156df083f7e4b141cf7faa18b94c9fafb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:23:02,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:23:03,045 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 03:23:03,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:23:03,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:23:03,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:23:03,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:23:03,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:23:03,083 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:23:03,083 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:23:03,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:23:03,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:23:03,084 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:23:03,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:23:03,084 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:23:03,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:23:03,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:23:03,084 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:23:03,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:23:03,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:23:03,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:23:03,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:23:03,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:23:03,085 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:23:03,085 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:23:03,086 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:23:03,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:23:03,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:23:03,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:23:03,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:23:03,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:23:03,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:23:03,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:23:03,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:23:03,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:23:03,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:23:03,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:23:03,087 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:23:03,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:23:03,088 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:23:03,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:23:03,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:23:03,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:23:03,088 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:23:03,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:23:03,089 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_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86380eb8807c8834472c3c5bc5f358e156df083f7e4b141cf7faa18b94c9fafb [2024-11-28 03:23:03,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:23:03,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:23:03,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:23:03,432 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:23:03,433 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:23:03,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i [2024-11-28 03:23:07,001 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/data/06157c5ec/0c974d6aa93644dca612725500a7a2b5/FLAGd1beea526 [2024-11-28 03:23:07,606 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:23:07,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i [2024-11-28 03:23:07,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/data/06157c5ec/0c974d6aa93644dca612725500a7a2b5/FLAGd1beea526 [2024-11-28 03:23:07,656 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/data/06157c5ec/0c974d6aa93644dca612725500a7a2b5 [2024-11-28 03:23:07,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:23:07,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:23:07,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:23:07,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:23:07,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:23:07,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:23:07" (1/1) ... [2024-11-28 03:23:07,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533bd54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:07, skipping insertion in model container [2024-11-28 03:23:07,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:23:07" (1/1) ... [2024-11-28 03:23:07,752 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:23:08,242 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3070] [2024-11-28 03:23:08,243 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3071-3072] [2024-11-28 03:23:08,362 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_334ac355-0da7-4fda-a413-29386000d09b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i[91143,91156] [2024-11-28 03:23:08,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:23:08,837 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:23:09,090 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3070] [2024-11-28 03:23:09,090 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3071-3072] [2024-11-28 03:23:09,094 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)); [3152] [2024-11-28 03:23:09,097 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, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3160-3161] [2024-11-28 03:23:09,107 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_334ac355-0da7-4fda-a413-29386000d09b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i[91143,91156] [2024-11-28 03:23:09,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:23:09,380 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:23:09,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09 WrapperNode [2024-11-28 03:23:09,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:23:09,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:23:09,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:23:09,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:23:09,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:09,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:09,610 INFO L138 Inliner]: procedures = 113, calls = 1214, calls flagged for inlining = 42, calls inlined = 40, statements flattened = 1963 [2024-11-28 03:23:09,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:23:09,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:23:09,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:23:09,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:23:09,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:09,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:09,650 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:09,839 INFO L175 MemorySlicer]: Split 956 memory accesses to 21 slices as follows [2, 5, 32, 512, 24, 6, 1, 30, 5, 5, 6, 3, 2, 6, 2, 6, 13, 274, 5, 14, 3]. 54 percent of accesses are in the largest equivalence class. The 780 initializations are split as follows [2, 5, 24, 512, 0, 4, 1, 0, 0, 5, 6, 0, 0, 0, 0, 6, 13, 180, 5, 14, 3]. The 106 writes are split as follows [0, 0, 0, 0, 24, 0, 0, 30, 5, 0, 0, 2, 1, 2, 2, 0, 0, 40, 0, 0, 0]. [2024-11-28 03:23:09,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:09,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:09,925 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:09,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:09,961 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:09,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:10,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:10,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:23:10,059 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:23:10,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:23:10,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:23:10,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (1/1) ... [2024-11-28 03:23:10,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:23:10,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:10,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:23:10,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:23:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2024-11-28 03:23:10,159 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2024-11-28 03:23:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-11-28 03:23:10,159 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-11-28 03:23:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2024-11-28 03:23:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2024-11-28 03:23:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2024-11-28 03:23:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2024-11-28 03:23:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 03:23:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 03:23:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 03:23:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 03:23:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 03:23:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 03:23:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 03:23:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 03:23:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-28 03:23:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-28 03:23:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-28 03:23:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-28 03:23:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-28 03:23:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-28 03:23:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-28 03:23:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-28 03:23:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-28 03:23:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-28 03:23:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-28 03:23:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-28 03:23:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-11-28 03:23:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 03:23:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 03:23:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 03:23:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 03:23:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 03:23:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 03:23:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 03:23:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 03:23:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-28 03:23:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-28 03:23:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-28 03:23:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-28 03:23:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-28 03:23:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-28 03:23:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:23:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-28 03:23:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-28 03:23:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-28 03:23:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2024-11-28 03:23:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2024-11-28 03:23:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 03:23:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 03:23:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure pg_sleep [2024-11-28 03:23:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_sleep [2024-11-28 03:23:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure pg_completion [2024-11-28 03:23:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_completion [2024-11-28 03:23:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:23:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:23:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:23:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:23:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:23:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 03:23:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-28 03:23:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-28 03:23:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-28 03:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure pg_wait [2024-11-28 03:23:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_wait [2024-11-28 03:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-28 03:23:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-28 03:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-28 03:23:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-28 03:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-28 03:23:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-28 03:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:23:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-28 03:23:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-28 03:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:23:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-28 03:23:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-28 03:23:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-28 03:23:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-28 03:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-28 03:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-28 03:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-28 03:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-28 03:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-28 03:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-28 03:23:10,183 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2024-11-28 03:23:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2024-11-28 03:23:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure pg_write [2024-11-28 03:23:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_write [2024-11-28 03:23:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-28 03:23:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-28 03:23:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:23:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:23:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:23:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 03:23:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 03:23:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 03:23:10,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-28 03:23:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_20 [2024-11-28 03:23:10,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_20 [2024-11-28 03:23:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure pg_reset [2024-11-28 03:23:10,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_reset [2024-11-28 03:23:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure pg_identify [2024-11-28 03:23:10,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_identify [2024-11-28 03:23:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2024-11-28 03:23:10,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2024-11-28 03:23:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:23:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 03:23:10,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 03:23:10,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 03:23:10,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 03:23:10,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 03:23:10,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-28 03:23:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-28 03:23:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2024-11-28 03:23:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2024-11-28 03:23:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2024-11-28 03:23:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2024-11-28 03:23:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-28 03:23:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-28 03:23:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-28 03:23:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-28 03:23:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure pg_probe [2024-11-28 03:23:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_probe [2024-11-28 03:23:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2024-11-28 03:23:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2024-11-28 03:23:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure pg_command [2024-11-28 03:23:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_command [2024-11-28 03:23:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-28 03:23:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-28 03:23:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-28 03:23:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-28 03:23:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-28 03:23:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-28 03:23:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-28 03:23:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:23:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:23:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2024-11-28 03:23:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2024-11-28 03:23:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-28 03:23:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-28 03:23:10,986 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:23:10,990 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:23:11,082 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-28 03:23:18,955 INFO L? ?]: Removed 572 outVars from TransFormulas that were not future-live. [2024-11-28 03:23:18,955 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:23:18,999 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:23:19,003 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:23:19,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:23:19 BoogieIcfgContainer [2024-11-28 03:23:19,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:23:19,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:23:19,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:23:19,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:23:19,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:23:07" (1/3) ... [2024-11-28 03:23:19,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:23:19, skipping insertion in model container [2024-11-28 03:23:19,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:23:09" (2/3) ... [2024-11-28 03:23:19,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:23:19, skipping insertion in model container [2024-11-28 03:23:19,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:23:19" (3/3) ... [2024-11-28 03:23:19,020 INFO L128 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i [2024-11-28 03:23:19,047 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:23:19,054 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i that has 35 procedures, 551 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 03:23:19,150 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:23:19,171 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;@54539c00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:23:19,172 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:23:19,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 550 states, 402 states have (on average 1.355721393034826) internal successors, (545), 410 states have internal predecessors, (545), 113 states have call successors, (113), 34 states have call predecessors, (113), 33 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-28 03:23:19,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 03:23:19,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:19,229 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:19,229 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:23:19,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:19,239 INFO L85 PathProgramCache]: Analyzing trace with hash -177280700, now seen corresponding path program 1 times [2024-11-28 03:23:19,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:19,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081174004] [2024-11-28 03:23:19,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:19,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:23:21,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:21,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081174004] [2024-11-28 03:23:21,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081174004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:21,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:23:21,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:23:21,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147313262] [2024-11-28 03:23:21,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:21,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:23:21,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:21,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:23:21,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:23:21,654 INFO L87 Difference]: Start difference. First operand has 550 states, 402 states have (on average 1.355721393034826) internal successors, (545), 410 states have internal predecessors, (545), 113 states have call successors, (113), 34 states have call predecessors, (113), 33 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 03:23:22,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:22,060 INFO L93 Difference]: Finished difference Result 1431 states and 2027 transitions. [2024-11-28 03:23:22,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:23:22,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-28 03:23:22,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:22,082 INFO L225 Difference]: With dead ends: 1431 [2024-11-28 03:23:22,083 INFO L226 Difference]: Without dead ends: 834 [2024-11-28 03:23:22,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:23:22,095 INFO L435 NwaCegarLoop]: 926 mSDtfsCounter, 476 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1638 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 [2024-11-28 03:23:22,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1638 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:23:22,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-28 03:23:22,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 832. [2024-11-28 03:23:22,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 600 states have (on average 1.325) internal successors, (795), 605 states have internal predecessors, (795), 175 states have call successors, (175), 57 states have call predecessors, (175), 56 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-28 03:23:22,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1144 transitions. [2024-11-28 03:23:22,276 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1144 transitions. Word has length 101 [2024-11-28 03:23:22,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:22,276 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1144 transitions. [2024-11-28 03:23:22,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 03:23:22,279 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1144 transitions. [2024-11-28 03:23:22,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 03:23:22,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:22,295 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:22,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:23:22,295 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:23:22,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:22,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1644619041, now seen corresponding path program 1 times [2024-11-28 03:23:22,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:22,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514254559] [2024-11-28 03:23:22,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:22,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:23,915 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-28 03:23:23,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:23,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514254559] [2024-11-28 03:23:23,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514254559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:23,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:23:23,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:23:23,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263970802] [2024-11-28 03:23:23,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:23,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:23:23,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:23,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:23:23,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:23:23,922 INFO L87 Difference]: Start difference. First operand 832 states and 1144 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:23:24,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:24,099 INFO L93 Difference]: Finished difference Result 1646 states and 2273 transitions. [2024-11-28 03:23:24,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:23:24,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2024-11-28 03:23:24,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:24,113 INFO L225 Difference]: With dead ends: 1646 [2024-11-28 03:23:24,115 INFO L226 Difference]: Without dead ends: 846 [2024-11-28 03:23:24,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:23:24,124 INFO L435 NwaCegarLoop]: 720 mSDtfsCounter, 7 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1437 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 [2024-11-28 03:23:24,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1437 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:23:24,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2024-11-28 03:23:24,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 834. [2024-11-28 03:23:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 602 states have (on average 1.323920265780731) internal successors, (797), 607 states have internal predecessors, (797), 175 states have call successors, (175), 57 states have call predecessors, (175), 56 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-28 03:23:24,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1146 transitions. [2024-11-28 03:23:24,239 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1146 transitions. Word has length 148 [2024-11-28 03:23:24,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:24,241 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1146 transitions. [2024-11-28 03:23:24,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:23:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1146 transitions. [2024-11-28 03:23:24,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 03:23:24,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:24,255 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:24,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:23:24,258 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:23:24,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:24,258 INFO L85 PathProgramCache]: Analyzing trace with hash -983554104, now seen corresponding path program 1 times [2024-11-28 03:23:24,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:24,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628552754] [2024-11-28 03:23:24,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:24,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-28 03:23:25,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:25,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628552754] [2024-11-28 03:23:25,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628552754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:25,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873991847] [2024-11-28 03:23:25,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:25,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:25,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:25,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:26,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:23:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:28,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 3467 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:23:28,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 03:23:28,462 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:23:28,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873991847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:28,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:23:28,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-28 03:23:28,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028648660] [2024-11-28 03:23:28,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:28,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:23:28,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:28,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:23:28,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:23:28,466 INFO L87 Difference]: Start difference. First operand 834 states and 1146 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:23:28,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:28,572 INFO L93 Difference]: Finished difference Result 1637 states and 2257 transitions. [2024-11-28 03:23:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:23:28,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2024-11-28 03:23:28,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:28,589 INFO L225 Difference]: With dead ends: 1637 [2024-11-28 03:23:28,589 INFO L226 Difference]: Without dead ends: 835 [2024-11-28 03:23:28,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:23:28,594 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 0 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:28,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:23:28,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-28 03:23:28,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-11-28 03:23:28,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 603 states have (on average 1.3233830845771144) internal successors, (798), 608 states have internal predecessors, (798), 175 states have call successors, (175), 57 states have call predecessors, (175), 56 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-28 03:23:28,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1147 transitions. [2024-11-28 03:23:28,651 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1147 transitions. Word has length 158 [2024-11-28 03:23:28,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:28,651 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1147 transitions. [2024-11-28 03:23:28,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:23:28,652 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1147 transitions. [2024-11-28 03:23:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 03:23:28,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:28,658 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:28,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:23:28,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:28,859 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:23:28,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:28,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1400950710, now seen corresponding path program 1 times [2024-11-28 03:23:28,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:28,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854766953] [2024-11-28 03:23:28,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:28,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:30,273 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-28 03:23:30,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:30,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854766953] [2024-11-28 03:23:30,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854766953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:30,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497055967] [2024-11-28 03:23:30,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:30,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:30,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:30,277 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:30,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:23:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:32,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 3470 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:23:32,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:32,446 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 03:23:32,446 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:23:32,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497055967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:32,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:23:32,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-28 03:23:32,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358540099] [2024-11-28 03:23:32,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:32,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:23:32,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:32,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:23:32,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:23:32,450 INFO L87 Difference]: Start difference. First operand 835 states and 1147 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:23:32,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:32,520 INFO L93 Difference]: Finished difference Result 839 states and 1151 transitions. [2024-11-28 03:23:32,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:23:32,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-11-28 03:23:32,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:32,531 INFO L225 Difference]: With dead ends: 839 [2024-11-28 03:23:32,531 INFO L226 Difference]: Without dead ends: 836 [2024-11-28 03:23:32,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:23:32,534 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 0 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:32,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:23:32,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-11-28 03:23:32,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 836. [2024-11-28 03:23:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 604 states have (on average 1.3228476821192052) internal successors, (799), 609 states have internal predecessors, (799), 175 states have call successors, (175), 57 states have call predecessors, (175), 56 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-28 03:23:32,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1148 transitions. [2024-11-28 03:23:32,592 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1148 transitions. Word has length 158 [2024-11-28 03:23:32,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:32,595 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1148 transitions. [2024-11-28 03:23:32,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:23:32,596 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1148 transitions. [2024-11-28 03:23:32,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:23:32,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:32,601 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:32,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:23:32,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:32,802 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:23:32,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:32,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1961767970, now seen corresponding path program 1 times [2024-11-28 03:23:32,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:32,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338451838] [2024-11-28 03:23:32,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:32,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:33,827 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-28 03:23:33,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:33,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338451838] [2024-11-28 03:23:33,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338451838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:33,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676464326] [2024-11-28 03:23:33,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:33,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:33,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:33,831 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:33,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:23:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:35,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 3475 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:23:35,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:35,930 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-28 03:23:35,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:23:35,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676464326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:35,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:23:35,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-28 03:23:35,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162071860] [2024-11-28 03:23:35,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:35,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:23:35,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:35,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:23:35,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:23:35,934 INFO L87 Difference]: Start difference. First operand 836 states and 1148 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:23:36,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:36,014 INFO L93 Difference]: Finished difference Result 1664 states and 2297 transitions. [2024-11-28 03:23:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:23:36,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2024-11-28 03:23:36,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:36,023 INFO L225 Difference]: With dead ends: 1664 [2024-11-28 03:23:36,024 INFO L226 Difference]: Without dead ends: 860 [2024-11-28 03:23:36,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:23:36,028 INFO L435 NwaCegarLoop]: 725 mSDtfsCounter, 11 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1442 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 [2024-11-28 03:23:36,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1442 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:23:36,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-28 03:23:36,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 838. [2024-11-28 03:23:36,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 606 states have (on average 1.3217821782178218) internal successors, (801), 611 states have internal predecessors, (801), 175 states have call successors, (175), 57 states have call predecessors, (175), 56 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-28 03:23:36,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1150 transitions. [2024-11-28 03:23:36,080 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1150 transitions. Word has length 160 [2024-11-28 03:23:36,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:36,081 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1150 transitions. [2024-11-28 03:23:36,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:23:36,082 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1150 transitions. [2024-11-28 03:23:36,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 03:23:36,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:36,088 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:36,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:23:36,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:36,289 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:23:36,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:36,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1797826935, now seen corresponding path program 1 times [2024-11-28 03:23:36,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:36,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636278358] [2024-11-28 03:23:36,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:36,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-28 03:23:37,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:37,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636278358] [2024-11-28 03:23:37,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636278358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:37,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986001419] [2024-11-28 03:23:37,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:37,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:37,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:37,364 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:37,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:23:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:39,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 3546 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:23:39,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:39,490 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 03:23:39,490 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:23:39,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986001419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:39,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:23:39,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-28 03:23:39,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694732756] [2024-11-28 03:23:39,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:39,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:23:39,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:39,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:23:39,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:23:39,493 INFO L87 Difference]: Start difference. First operand 838 states and 1150 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:23:39,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:39,612 INFO L93 Difference]: Finished difference Result 1661 states and 2288 transitions. [2024-11-28 03:23:39,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:23:39,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 165 [2024-11-28 03:23:39,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:39,622 INFO L225 Difference]: With dead ends: 1661 [2024-11-28 03:23:39,622 INFO L226 Difference]: Without dead ends: 855 [2024-11-28 03:23:39,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:23:39,627 INFO L435 NwaCegarLoop]: 715 mSDtfsCounter, 17 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1421 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 [2024-11-28 03:23:39,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1421 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:23:39,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-28 03:23:39,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 840. [2024-11-28 03:23:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 608 states have (on average 1.3207236842105263) internal successors, (803), 613 states have internal predecessors, (803), 175 states have call successors, (175), 57 states have call predecessors, (175), 56 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-28 03:23:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1152 transitions. [2024-11-28 03:23:39,680 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1152 transitions. Word has length 165 [2024-11-28 03:23:39,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:39,681 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 1152 transitions. [2024-11-28 03:23:39,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-28 03:23:39,681 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1152 transitions. [2024-11-28 03:23:39,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-28 03:23:39,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:39,686 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:39,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:23:39,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 03:23:39,887 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:23:39,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:39,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1564805278, now seen corresponding path program 1 times [2024-11-28 03:23:39,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:39,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640614716] [2024-11-28 03:23:39,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:39,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:40,965 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 03:23:40,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:40,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640614716] [2024-11-28 03:23:40,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640614716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:40,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268337625] [2024-11-28 03:23:40,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:40,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:40,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:40,969 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:40,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:23:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:43,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 3557 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:23:43,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:43,358 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 03:23:43,359 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:23:43,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268337625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:43,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:23:43,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-28 03:23:43,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448030037] [2024-11-28 03:23:43,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:43,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:23:43,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:43,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:23:43,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:23:43,363 INFO L87 Difference]: Start difference. First operand 840 states and 1152 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:23:43,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:43,449 INFO L93 Difference]: Finished difference Result 1674 states and 2309 transitions. [2024-11-28 03:23:43,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:23:43,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 169 [2024-11-28 03:23:43,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:43,459 INFO L225 Difference]: With dead ends: 1674 [2024-11-28 03:23:43,459 INFO L226 Difference]: Without dead ends: 866 [2024-11-28 03:23:43,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:23:43,465 INFO L435 NwaCegarLoop]: 720 mSDtfsCounter, 17 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1425 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 [2024-11-28 03:23:43,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1425 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:23:43,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-28 03:23:43,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2024-11-28 03:23:43,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 628 states have (on average 1.3232484076433122) internal successors, (831), 633 states have internal predecessors, (831), 181 states have call successors, (181), 57 states have call predecessors, (181), 56 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-28 03:23:43,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1192 transitions. [2024-11-28 03:23:43,518 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1192 transitions. Word has length 169 [2024-11-28 03:23:43,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:43,519 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1192 transitions. [2024-11-28 03:23:43,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-28 03:23:43,519 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1192 transitions. [2024-11-28 03:23:43,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 03:23:43,526 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:43,526 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:43,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:23:43,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 03:23:43,728 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:23:43,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:43,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1881492816, now seen corresponding path program 1 times [2024-11-28 03:23:43,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:43,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734502092] [2024-11-28 03:23:43,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:43,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:45,005 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 03:23:45,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:45,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734502092] [2024-11-28 03:23:45,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734502092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:45,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698115796] [2024-11-28 03:23:45,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:23:45,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:45,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:45,009 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:45,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:23:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:23:47,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 3575 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:23:47,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:47,643 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-28 03:23:47,643 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:23:47,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698115796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:47,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:23:47,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-28 03:23:47,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006997998] [2024-11-28 03:23:47,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:47,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:23:47,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:47,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:23:47,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:23:47,645 INFO L87 Difference]: Start difference. First operand 866 states and 1192 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-28 03:23:47,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:47,735 INFO L93 Difference]: Finished difference Result 1692 states and 2337 transitions. [2024-11-28 03:23:47,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:23:47,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 174 [2024-11-28 03:23:47,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:47,738 INFO L225 Difference]: With dead ends: 1692 [2024-11-28 03:23:47,739 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:23:47,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:23:47,747 INFO L435 NwaCegarLoop]: 710 mSDtfsCounter, 567 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:47,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1419 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:23:47,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:23:47,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:23:47,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:23:47,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2024-11-28 03:23:47,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:47,750 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:23:47,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-28 03:23:47,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:23:47,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:23:47,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:23:47,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:23:47,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:47,958 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:47,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:23:51,126 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:23:51,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:23:51 BoogieIcfgContainer [2024-11-28 03:23:51,150 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:23:51,151 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:23:51,151 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:23:51,152 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:23:51,153 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:23:19" (3/4) ... [2024-11-28 03:23:51,156 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:23:51,163 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_from_user [2024-11-28 03:23:51,163 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_release [2024-11-28 03:23:51,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_init [2024-11-28 03:23:51,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_reg [2024-11-28 03:23:51,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_sleep [2024-11-28 03:23:51,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_read_regr [2024-11-28 03:23:51,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure might_fault [2024-11-28 03:23:51,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-28 03:23:51,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_disconnect [2024-11-28 03:23:51,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_probe [2024-11-28 03:23:51,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure status_reg [2024-11-28 03:23:51,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_completion [2024-11-28 03:23:51,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DRIVE [2024-11-28 03:23:51,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_to_user [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_wait [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_write [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_connect [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_to_user [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_command [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure clear_bit [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_reg [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_unregister_chrdev_20 [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_reset [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2024-11-28 03:23:51,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-11-28 03:23:51,166 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure xs [2024-11-28 03:23:51,166 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_identify [2024-11-28 03:23:51,166 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_write_block [2024-11-28 03:23:51,166 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure IS_ERR [2024-11-28 03:23:51,217 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 217 nodes and edges [2024-11-28 03:23:51,221 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 98 nodes and edges [2024-11-28 03:23:51,225 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-11-28 03:23:51,229 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-28 03:23:51,232 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:23:51,235 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 03:23:51,239 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:23:51,602 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:23:51,603 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:23:51,603 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:23:51,606 INFO L158 Benchmark]: Toolchain (without parser) took 43943.44ms. Allocated memory was 117.4MB in the beginning and 838.9MB in the end (delta: 721.4MB). Free memory was 87.0MB in the beginning and 516.2MB in the end (delta: -429.2MB). Peak memory consumption was 284.9MB. Max. memory is 16.1GB. [2024-11-28 03:23:51,608 INFO L158 Benchmark]: CDTParser took 3.25ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:23:51,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1720.62ms. Allocated memory is still 117.4MB. Free memory was 87.0MB in the beginning and 61.0MB in the end (delta: 26.0MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2024-11-28 03:23:51,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 227.07ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 47.4MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:23:51,609 INFO L158 Benchmark]: Boogie Preprocessor took 446.06ms. Allocated memory is still 117.4MB. Free memory was 47.2MB in the beginning and 53.4MB in the end (delta: -6.2MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2024-11-28 03:23:51,610 INFO L158 Benchmark]: RCFGBuilder took 8944.52ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 53.4MB in the beginning and 144.3MB in the end (delta: -90.9MB). Peak memory consumption was 135.2MB. Max. memory is 16.1GB. [2024-11-28 03:23:51,610 INFO L158 Benchmark]: TraceAbstraction took 32143.35ms. Allocated memory was 276.8MB in the beginning and 838.9MB in the end (delta: 562.0MB). Free memory was 144.3MB in the beginning and 549.6MB in the end (delta: -405.3MB). Peak memory consumption was 161.3MB. Max. memory is 16.1GB. [2024-11-28 03:23:51,611 INFO L158 Benchmark]: Witness Printer took 452.22ms. Allocated memory is still 838.9MB. Free memory was 549.6MB in the beginning and 516.2MB in the end (delta: 33.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:23:51,615 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.25ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1720.62ms. Allocated memory is still 117.4MB. Free memory was 87.0MB in the beginning and 61.0MB in the end (delta: 26.0MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 227.07ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 47.4MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 446.06ms. Allocated memory is still 117.4MB. Free memory was 47.2MB in the beginning and 53.4MB in the end (delta: -6.2MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * RCFGBuilder took 8944.52ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 53.4MB in the beginning and 144.3MB in the end (delta: -90.9MB). Peak memory consumption was 135.2MB. Max. memory is 16.1GB. * TraceAbstraction took 32143.35ms. Allocated memory was 276.8MB in the beginning and 838.9MB in the end (delta: 562.0MB). Free memory was 144.3MB in the beginning and 549.6MB in the end (delta: -405.3MB). Peak memory consumption was 161.3MB. Max. memory is 16.1GB. * Witness Printer took 452.22ms. Allocated memory is still 838.9MB. Free memory was 549.6MB in the beginning and 516.2MB in the end (delta: 33.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3152]: 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)); [3152] - GenericResultAtLocation [Line: 3160]: 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, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3160-3161] * 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: 3271]: 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 35 procedures, 551 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28.8s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1106 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1095 mSDsluCounter, 11658 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5698 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 5960 mSDtfsCounter, 91 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1009 GetRequests, 987 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=866occurred in iteration=7, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 51 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 4.4s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 2217 NumberOfCodeBlocks, 2217 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2203 ConstructedInterpolants, 0 QuantifiedInterpolants, 2655 SizeOfPredicates, 1 NumberOfNonLiveVariables, 21090 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 891/897 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: 3607]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 3655]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 4162]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 3634]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 3806]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 3655]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 3506]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 3447]: Loop Invariant Derived loop invariant: (ldv_spin == 0) RESULT: Ultimate proved your program to be correct! [2024-11-28 03:23:51,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334ac355-0da7-4fda-a413-29386000d09b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE