./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 230b725329634d718374ec3f6d82161758e5d9913588383fdc3e35a9fd1533f5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:25:01,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:25:01,989 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 01:25:01,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:25:01,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:25:02,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:25:02,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:25:02,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:25:02,037 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:25:02,037 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:25:02,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:25:02,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:25:02,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:25:02,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:25:02,039 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:25:02,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:25:02,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:25:02,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:25:02,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:25:02,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:25:02,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:25:02,041 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:25:02,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:25:02,042 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:25:02,042 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:25:02,042 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:25:02,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:25:02,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:25:02,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:25:02,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:25:02,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:25:02,043 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:25:02,043 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:25:02,043 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:25:02,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:25:02,043 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:25:02,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:25:02,043 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:25:02,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:25:02,044 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:25:02,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:25:02,044 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:25:02,044 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:25:02,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:25:02,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:25:02,044 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_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 230b725329634d718374ec3f6d82161758e5d9913588383fdc3e35a9fd1533f5 [2024-11-24 01:25:02,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:25:02,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:25:02,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:25:02,407 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:25:02,407 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:25:02,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i [2024-11-24 01:25:05,559 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/data/b85e1b505/1479ab14f60343fbbc6068b643464f79/FLAG9e89139fc [2024-11-24 01:25:06,205 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:25:06,206 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i [2024-11-24 01:25:06,265 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/data/b85e1b505/1479ab14f60343fbbc6068b643464f79/FLAG9e89139fc [2024-11-24 01:25:06,294 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/data/b85e1b505/1479ab14f60343fbbc6068b643464f79 [2024-11-24 01:25:06,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:25:06,299 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:25:06,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:25:06,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:25:06,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:25:06,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:25:06" (1/1) ... [2024-11-24 01:25:06,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ede14f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:06, skipping insertion in model container [2024-11-24 01:25:06,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:25:06" (1/1) ... [2024-11-24 01:25:06,454 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:25:07,707 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_8dc4a67e-1242-4b66-b0ff-73ad2e645087/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i[164687,164700] [2024-11-24 01:25:07,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:25:07,823 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:25:07,991 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; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [4273-4274] [2024-11-24 01:25:07,996 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [4285-4286] [2024-11-24 01:25:07,996 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [4289-4290] [2024-11-24 01:25:07,997 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [4293-4294] [2024-11-24 01:25:07,997 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [4297-4298] [2024-11-24 01:25:08,154 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_8dc4a67e-1242-4b66-b0ff-73ad2e645087/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i[164687,164700] [2024-11-24 01:25:08,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:25:08,251 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: __xadd_wrong_size [2024-11-24 01:25:08,260 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:25:08,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08 WrapperNode [2024-11-24 01:25:08,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:25:08,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:25:08,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:25:08,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:25:08,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:08,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:08,467 INFO L138 Inliner]: procedures = 147, calls = 882, calls flagged for inlining = 62, calls inlined = 60, statements flattened = 2112 [2024-11-24 01:25:08,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:25:08,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:25:08,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:25:08,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:25:08,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:08,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:08,517 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:08,870 INFO L175 MemorySlicer]: Split 543 memory accesses to 16 slices as follows [2, 14, 182, 14, 5, 3, 16, 2, 2, 8, 4, 3, 2, 56, 12, 218]. 40 percent of accesses are in the largest equivalence class. The 258 initializations are split as follows [2, 14, 182, 14, 5, 3, 16, 0, 0, 0, 3, 2, 0, 0, 0, 17]. The 146 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 51, 12, 81]. [2024-11-24 01:25:08,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:08,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:09,021 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:09,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:09,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:09,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:09,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:09,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:25:09,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:25:09,156 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:25:09,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:25:09,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (1/1) ... [2024-11-24 01:25:09,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:25:09,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:09,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:25:09,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:25:09,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 01:25:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 01:25:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 01:25:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 01:25:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 01:25:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 01:25:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 01:25:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-24 01:25:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-24 01:25:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-24 01:25:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-24 01:25:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-24 01:25:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-24 01:25:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-24 01:25:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-24 01:25:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-24 01:25:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2024-11-24 01:25:09,240 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2024-11-24 01:25:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-24 01:25:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-24 01:25:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-24 01:25:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 01:25:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 01:25:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 01:25:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 01:25:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 01:25:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 01:25:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-24 01:25:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-24 01:25:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-24 01:25:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-24 01:25:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-24 01:25:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-24 01:25:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-24 01:25:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 01:25:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-24 01:25:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-24 01:25:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-24 01:25:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-24 01:25:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-11-24 01:25:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2024-11-24 01:25:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2024-11-24 01:25:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2024-11-24 01:25:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2024-11-24 01:25:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2024-11-24 01:25:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#15 [2024-11-24 01:25:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-24 01:25:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-24 01:25:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-24 01:25:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-24 01:25:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-24 01:25:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-24 01:25:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-24 01:25:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-24 01:25:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-24 01:25:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-11-24 01:25:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2024-11-24 01:25:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2024-11-24 01:25:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2024-11-24 01:25:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2024-11-24 01:25:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2024-11-24 01:25:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#15 [2024-11-24 01:25:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 01:25:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 01:25:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure get_rdac_data [2024-11-24 01:25:09,254 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rdac_data [2024-11-24 01:25:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure blk_put_request [2024-11-24 01:25:09,254 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_put_request [2024-11-24 01:25:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2024-11-24 01:25:09,255 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2024-11-24 01:25:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-24 01:25:09,255 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-24 01:25:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:25:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:25:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:25:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:25:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:25:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:25:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 01:25:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 01:25:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 01:25:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 01:25:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-24 01:25:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-24 01:25:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-24 01:25:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-24 01:25:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-24 01:25:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-24 01:25:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-24 01:25:09,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-24 01:25:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure send_mode_select [2024-11-24 01:25:09,258 INFO L138 BoogieDeclarations]: Found implementation of procedure send_mode_select [2024-11-24 01:25:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2024-11-24 01:25:09,258 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2024-11-24 01:25:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-24 01:25:09,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-24 01:25:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-24 01:25:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-24 01:25:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-24 01:25:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-24 01:25:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-24 01:25:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-24 01:25:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-24 01:25:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-24 01:25:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-24 01:25:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-24 01:25:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-24 01:25:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-24 01:25:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-11-24 01:25:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2024-11-24 01:25:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2024-11-24 01:25:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-11-24 01:25:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2024-11-24 01:25:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2024-11-24 01:25:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2024-11-24 01:25:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-24 01:25:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-24 01:25:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:25:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:25:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:25:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-24 01:25:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-24 01:25:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unregister_device_handler [2024-11-24 01:25:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unregister_device_handler [2024-11-24 01:25:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2024-11-24 01:25:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2024-11-24 01:25:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-11-24 01:25:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-11-24 01:25:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:25:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure submit_inquiry [2024-11-24 01:25:09,263 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_inquiry [2024-11-24 01:25:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure rdac_bus_detach [2024-11-24 01:25:09,263 INFO L138 BoogieDeclarations]: Found implementation of procedure rdac_bus_detach [2024-11-24 01:25:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:25:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 01:25:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 01:25:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 01:25:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 01:25:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 01:25:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 01:25:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 01:25:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 01:25:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 01:25:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-24 01:25:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-24 01:25:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-24 01:25:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-24 01:25:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-24 01:25:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-24 01:25:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-24 01:25:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure rdac_match [2024-11-24 01:25:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure rdac_match [2024-11-24 01:25:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-24 01:25:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-24 01:25:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2024-11-24 01:25:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq [2024-11-24 01:25:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-24 01:25:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-24 01:25:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_prefix_printk [2024-11-24 01:25:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_prefix_printk [2024-11-24 01:25:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 01:25:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 01:25:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 01:25:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 01:25:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 01:25:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 01:25:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 01:25:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 01:25:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 01:25:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 01:25:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-24 01:25:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-24 01:25:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-24 01:25:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-24 01:25:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-24 01:25:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-24 01:25:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2024-11-24 01:25:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2024-11-24 01:25:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-24 01:25:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-24 01:25:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure check_ownership [2024-11-24 01:25:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ownership [2024-11-24 01:25:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2024-11-24 01:25:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2024-11-24 01:25:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:25:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure get_rdac_req [2024-11-24 01:25:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rdac_req [2024-11-24 01:25:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-24 01:25:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-24 01:25:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-24 01:25:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-24 01:25:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-24 01:25:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-24 01:25:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2024-11-24 01:25:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2024-11-24 01:25:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-24 01:25:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-24 01:25:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-24 01:25:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-24 01:25:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-24 01:25:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-24 01:25:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:25:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:25:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:25:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:25:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:25:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:25:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 01:25:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 01:25:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 01:25:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 01:25:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 01:25:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-24 01:25:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-24 01:25:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-24 01:25:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-24 01:25:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-24 01:25:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2024-11-24 01:25:09,275 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2024-11-24 01:25:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-24 01:25:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-24 01:25:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-24 01:25:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-24 01:25:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-24 01:25:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-24 01:25:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-24 01:25:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-24 01:25:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-24 01:25:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-24 01:25:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-11-24 01:25:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-11-24 01:25:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-11-24 01:25:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-11-24 01:25:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-11-24 01:25:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2024-11-24 01:25:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:25:09,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:25:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-24 01:25:09,277 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-24 01:25:10,154 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:25:10,158 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:25:10,828 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 01:25:18,255 INFO L? ?]: Removed 1138 outVars from TransFormulas that were not future-live. [2024-11-24 01:25:18,256 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:25:18,297 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:25:18,297 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:25:18,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:25:18 BoogieIcfgContainer [2024-11-24 01:25:18,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:25:18,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:25:18,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:25:18,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:25:18,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:25:06" (1/3) ... [2024-11-24 01:25:18,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efb5615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:25:18, skipping insertion in model container [2024-11-24 01:25:18,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:25:08" (2/3) ... [2024-11-24 01:25:18,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5efb5615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:25:18, skipping insertion in model container [2024-11-24 01:25:18,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:25:18" (3/3) ... [2024-11-24 01:25:18,309 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i [2024-11-24 01:25:18,327 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:25:18,329 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i that has 72 procedures, 767 locations, 1 initial locations, 49 loop locations, and 2 error locations. [2024-11-24 01:25:18,422 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:25:18,436 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;@d0f2830, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:25:18,436 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 01:25:18,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 635 states, 466 states have (on average 1.388412017167382) internal successors, (647), 487 states have internal predecessors, (647), 125 states have call successors, (125), 42 states have call predecessors, (125), 41 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2024-11-24 01:25:18,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-24 01:25:18,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:18,466 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:18,467 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:18,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:18,473 INFO L85 PathProgramCache]: Analyzing trace with hash 540310745, now seen corresponding path program 1 times [2024-11-24 01:25:18,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:18,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219310281] [2024-11-24 01:25:18,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:18,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:20,619 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 01:25:20,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:20,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219310281] [2024-11-24 01:25:20,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219310281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:25:20,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745828537] [2024-11-24 01:25:20,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:20,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:20,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:20,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:20,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:25:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:22,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:25:22,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:22,707 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 01:25:22,707 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:25:22,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745828537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:22,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:25:22,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:25:22,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278394092] [2024-11-24 01:25:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:22,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:25:22,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:22,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:25:22,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:25:22,743 INFO L87 Difference]: Start difference. First operand has 635 states, 466 states have (on average 1.388412017167382) internal successors, (647), 487 states have internal predecessors, (647), 125 states have call successors, (125), 42 states have call predecessors, (125), 41 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 01:25:22,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:22,885 INFO L93 Difference]: Finished difference Result 1264 states and 1822 transitions. [2024-11-24 01:25:22,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:25:22,889 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2024-11-24 01:25:22,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:22,912 INFO L225 Difference]: With dead ends: 1264 [2024-11-24 01:25:22,912 INFO L226 Difference]: Without dead ends: 615 [2024-11-24 01:25:22,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:25:22,926 INFO L435 NwaCegarLoop]: 884 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:22,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:22,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-11-24 01:25:23,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2024-11-24 01:25:23,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 454 states have (on average 1.3722466960352422) internal successors, (623), 469 states have internal predecessors, (623), 119 states have call successors, (119), 41 states have call predecessors, (119), 40 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-24 01:25:23,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 860 transitions. [2024-11-24 01:25:23,032 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 860 transitions. Word has length 74 [2024-11-24 01:25:23,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:23,033 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 860 transitions. [2024-11-24 01:25:23,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 01:25:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 860 transitions. [2024-11-24 01:25:23,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-24 01:25:23,037 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:23,038 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:23,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:25:23,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:23,239 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:23,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:23,239 INFO L85 PathProgramCache]: Analyzing trace with hash 471425631, now seen corresponding path program 1 times [2024-11-24 01:25:23,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:23,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538149502] [2024-11-24 01:25:23,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:23,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:24,336 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-24 01:25:24,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:24,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538149502] [2024-11-24 01:25:24,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538149502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:24,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:24,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:24,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938816568] [2024-11-24 01:25:24,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:24,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:24,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:24,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:24,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:24,342 INFO L87 Difference]: Start difference. First operand 615 states and 860 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 01:25:24,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:24,593 INFO L93 Difference]: Finished difference Result 1448 states and 2004 transitions. [2024-11-24 01:25:24,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:24,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 74 [2024-11-24 01:25:24,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:24,607 INFO L225 Difference]: With dead ends: 1448 [2024-11-24 01:25:24,608 INFO L226 Difference]: Without dead ends: 850 [2024-11-24 01:25:24,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:24,615 INFO L435 NwaCegarLoop]: 863 mSDtfsCounter, 321 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:24,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 1673 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:25:24,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-24 01:25:24,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 845. [2024-11-24 01:25:24,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 626 states have (on average 1.354632587859425) internal successors, (848), 643 states have internal predecessors, (848), 156 states have call successors, (156), 62 states have call predecessors, (156), 61 states have return successors, (155), 154 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-24 01:25:24,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1159 transitions. [2024-11-24 01:25:24,708 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1159 transitions. Word has length 74 [2024-11-24 01:25:24,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:24,710 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1159 transitions. [2024-11-24 01:25:24,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 01:25:24,710 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1159 transitions. [2024-11-24 01:25:24,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 01:25:24,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:24,722 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-24 01:25:24,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:25:24,722 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:24,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:24,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1091552562, now seen corresponding path program 1 times [2024-11-24 01:25:24,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:24,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510181961] [2024-11-24 01:25:24,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:24,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:26,547 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:25:26,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:26,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510181961] [2024-11-24 01:25:26,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510181961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:26,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:26,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:25:26,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502685069] [2024-11-24 01:25:26,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:26,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:25:26,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:26,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:25:26,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:25:26,552 INFO L87 Difference]: Start difference. First operand 845 states and 1159 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-24 01:25:26,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:26,728 INFO L93 Difference]: Finished difference Result 1668 states and 2293 transitions. [2024-11-24 01:25:26,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:25:26,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 112 [2024-11-24 01:25:26,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:26,747 INFO L225 Difference]: With dead ends: 1668 [2024-11-24 01:25:26,747 INFO L226 Difference]: Without dead ends: 850 [2024-11-24 01:25:26,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:25:26,754 INFO L435 NwaCegarLoop]: 860 mSDtfsCounter, 6 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3412 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:26,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3412 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:25:26,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-24 01:25:26,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 848. [2024-11-24 01:25:26,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 629 states have (on average 1.3529411764705883) internal successors, (851), 646 states have internal predecessors, (851), 156 states have call successors, (156), 62 states have call predecessors, (156), 61 states have return successors, (155), 154 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-24 01:25:26,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1162 transitions. [2024-11-24 01:25:26,838 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1162 transitions. Word has length 112 [2024-11-24 01:25:26,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:26,839 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1162 transitions. [2024-11-24 01:25:26,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-24 01:25:26,839 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1162 transitions. [2024-11-24 01:25:26,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 01:25:26,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:26,846 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-24 01:25:26,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:25:26,846 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:26,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:26,847 INFO L85 PathProgramCache]: Analyzing trace with hash -50216056, now seen corresponding path program 1 times [2024-11-24 01:25:26,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:26,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642623306] [2024-11-24 01:25:26,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:26,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-24 01:25:28,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:28,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642623306] [2024-11-24 01:25:28,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642623306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:28,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:28,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:28,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947855334] [2024-11-24 01:25:28,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:28,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:28,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:28,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:28,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:28,123 INFO L87 Difference]: Start difference. First operand 848 states and 1162 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 01:25:28,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:28,187 INFO L93 Difference]: Finished difference Result 852 states and 1166 transitions. [2024-11-24 01:25:28,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:28,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 115 [2024-11-24 01:25:28,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:28,199 INFO L225 Difference]: With dead ends: 852 [2024-11-24 01:25:28,199 INFO L226 Difference]: Without dead ends: 849 [2024-11-24 01:25:28,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:28,202 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 0 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1712 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 [2024-11-24 01:25:28,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1712 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-11-24 01:25:28,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 849. [2024-11-24 01:25:28,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 630 states have (on average 1.3523809523809525) internal successors, (852), 647 states have internal predecessors, (852), 156 states have call successors, (156), 62 states have call predecessors, (156), 61 states have return successors, (155), 154 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-24 01:25:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1163 transitions. [2024-11-24 01:25:28,278 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1163 transitions. Word has length 115 [2024-11-24 01:25:28,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:28,279 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1163 transitions. [2024-11-24 01:25:28,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-24 01:25:28,279 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1163 transitions. [2024-11-24 01:25:28,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 01:25:28,282 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:28,282 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-24 01:25:28,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:25:28,282 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:28,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:28,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1492166867, now seen corresponding path program 1 times [2024-11-24 01:25:28,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:28,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825460935] [2024-11-24 01:25:28,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:28,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:29,839 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-24 01:25:29,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:29,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825460935] [2024-11-24 01:25:29,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825460935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:29,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:29,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:25:29,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224632503] [2024-11-24 01:25:29,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:29,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:25:29,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:29,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:25:29,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:25:29,843 INFO L87 Difference]: Start difference. First operand 849 states and 1163 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 01:25:29,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:29,987 INFO L93 Difference]: Finished difference Result 1768 states and 2422 transitions. [2024-11-24 01:25:29,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:25:29,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 117 [2024-11-24 01:25:29,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:30,000 INFO L225 Difference]: With dead ends: 1768 [2024-11-24 01:25:30,001 INFO L226 Difference]: Without dead ends: 946 [2024-11-24 01:25:30,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:25:30,008 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 650 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:30,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 2017 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:30,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-11-24 01:25:30,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 928. [2024-11-24 01:25:30,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 679 states have (on average 1.346097201767305) internal successors, (914), 704 states have internal predecessors, (914), 173 states have call successors, (173), 77 states have call predecessors, (173), 74 states have return successors, (177), 165 states have call predecessors, (177), 172 states have call successors, (177) [2024-11-24 01:25:30,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1264 transitions. [2024-11-24 01:25:30,086 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1264 transitions. Word has length 117 [2024-11-24 01:25:30,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:30,086 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1264 transitions. [2024-11-24 01:25:30,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-24 01:25:30,087 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1264 transitions. [2024-11-24 01:25:30,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-24 01:25:30,094 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:30,095 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:30,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:25:30,095 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:30,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:30,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1687551726, now seen corresponding path program 1 times [2024-11-24 01:25:30,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:30,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668039364] [2024-11-24 01:25:30,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:30,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:31,572 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-24 01:25:31,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:31,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668039364] [2024-11-24 01:25:31,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668039364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:25:31,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420497682] [2024-11-24 01:25:31,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:31,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:31,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:31,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:31,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:25:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:33,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 2775 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:25:33,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:33,784 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-24 01:25:33,784 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:25:33,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420497682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:33,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:25:33,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-24 01:25:33,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628874383] [2024-11-24 01:25:33,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:33,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:25:33,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:33,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:25:33,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:25:33,787 INFO L87 Difference]: Start difference. First operand 928 states and 1264 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 01:25:33,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:33,929 INFO L93 Difference]: Finished difference Result 1835 states and 2507 transitions. [2024-11-24 01:25:33,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:25:33,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 217 [2024-11-24 01:25:33,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:33,939 INFO L225 Difference]: With dead ends: 1835 [2024-11-24 01:25:33,939 INFO L226 Difference]: Without dead ends: 934 [2024-11-24 01:25:33,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:25:33,945 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 3 mSDsluCounter, 3408 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4264 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:33,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4264 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:25:33,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-11-24 01:25:33,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 933. [2024-11-24 01:25:33,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 683 states have (on average 1.3440702781844802) internal successors, (918), 707 states have internal predecessors, (918), 173 states have call successors, (173), 77 states have call predecessors, (173), 75 states have return successors, (181), 166 states have call predecessors, (181), 172 states have call successors, (181) [2024-11-24 01:25:34,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1272 transitions. [2024-11-24 01:25:34,005 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1272 transitions. Word has length 217 [2024-11-24 01:25:34,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:34,007 INFO L471 AbstractCegarLoop]: Abstraction has 933 states and 1272 transitions. [2024-11-24 01:25:34,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 01:25:34,007 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1272 transitions. [2024-11-24 01:25:34,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-24 01:25:34,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:34,016 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:34,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:25:34,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:34,217 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:34,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:34,218 INFO L85 PathProgramCache]: Analyzing trace with hash 604470673, now seen corresponding path program 1 times [2024-11-24 01:25:34,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:34,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774275922] [2024-11-24 01:25:34,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:34,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:35,821 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-24 01:25:35,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:35,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774275922] [2024-11-24 01:25:35,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774275922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:25:35,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025709286] [2024-11-24 01:25:35,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:35,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:35,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:35,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:35,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:25:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:37,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 2767 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:25:37,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:38,244 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-24 01:25:38,244 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:25:38,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025709286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:38,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:25:38,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-24 01:25:38,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624304327] [2024-11-24 01:25:38,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:38,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:25:38,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:38,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:25:38,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:25:38,247 INFO L87 Difference]: Start difference. First operand 933 states and 1272 transitions. Second operand has 8 states, 8 states have (on average 15.25) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 01:25:38,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:38,476 INFO L93 Difference]: Finished difference Result 1842 states and 2517 transitions. [2024-11-24 01:25:38,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:25:38,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 217 [2024-11-24 01:25:38,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:38,488 INFO L225 Difference]: With dead ends: 1842 [2024-11-24 01:25:38,488 INFO L226 Difference]: Without dead ends: 936 [2024-11-24 01:25:38,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:25:38,494 INFO L435 NwaCegarLoop]: 854 mSDtfsCounter, 2 mSDsluCounter, 5095 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5949 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:38,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5949 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:25:38,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2024-11-24 01:25:38,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 936. [2024-11-24 01:25:38,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 686 states have (on average 1.3425655976676385) internal successors, (921), 710 states have internal predecessors, (921), 173 states have call successors, (173), 77 states have call predecessors, (173), 75 states have return successors, (181), 166 states have call predecessors, (181), 172 states have call successors, (181) [2024-11-24 01:25:38,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1275 transitions. [2024-11-24 01:25:38,552 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1275 transitions. Word has length 217 [2024-11-24 01:25:38,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:38,553 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1275 transitions. [2024-11-24 01:25:38,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 01:25:38,554 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1275 transitions. [2024-11-24 01:25:38,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-24 01:25:38,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:38,563 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:38,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:25:38,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:38,768 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:38,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:38,768 INFO L85 PathProgramCache]: Analyzing trace with hash 639945549, now seen corresponding path program 1 times [2024-11-24 01:25:38,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:38,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815124225] [2024-11-24 01:25:38,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:38,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:40,303 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-11-24 01:25:40,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:40,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815124225] [2024-11-24 01:25:40,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815124225] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:25:40,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882471487] [2024-11-24 01:25:40,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:40,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:40,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:40,307 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:40,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:25:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:42,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 2925 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:25:42,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-24 01:25:42,750 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:25:42,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882471487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:42,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:25:42,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-24 01:25:42,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345574593] [2024-11-24 01:25:42,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:42,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:25:42,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:42,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:25:42,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:25:42,753 INFO L87 Difference]: Start difference. First operand 936 states and 1275 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 7 states have internal predecessors, (132), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-24 01:25:42,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:42,979 INFO L93 Difference]: Finished difference Result 1854 states and 2534 transitions. [2024-11-24 01:25:42,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:25:42,980 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 7 states have internal predecessors, (132), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 233 [2024-11-24 01:25:42,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:42,989 INFO L225 Difference]: With dead ends: 1854 [2024-11-24 01:25:42,989 INFO L226 Difference]: Without dead ends: 945 [2024-11-24 01:25:42,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:25:42,995 INFO L435 NwaCegarLoop]: 855 mSDtfsCounter, 4 mSDsluCounter, 5100 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5955 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:42,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5955 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:25:42,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-24 01:25:43,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 937. [2024-11-24 01:25:43,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 686 states have (on average 1.3425655976676385) internal successors, (921), 711 states have internal predecessors, (921), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 167 states have call predecessors, (182), 173 states have call successors, (182) [2024-11-24 01:25:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1277 transitions. [2024-11-24 01:25:43,045 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1277 transitions. Word has length 233 [2024-11-24 01:25:43,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:43,046 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1277 transitions. [2024-11-24 01:25:43,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 7 states have internal predecessors, (132), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-24 01:25:43,046 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1277 transitions. [2024-11-24 01:25:43,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-24 01:25:43,054 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:43,055 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:43,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:25:43,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:43,259 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:43,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:43,259 INFO L85 PathProgramCache]: Analyzing trace with hash -576208177, now seen corresponding path program 1 times [2024-11-24 01:25:43,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:43,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393405296] [2024-11-24 01:25:43,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:43,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:44,386 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-24 01:25:44,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:44,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393405296] [2024-11-24 01:25:44,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393405296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:44,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:44,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:25:44,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660689378] [2024-11-24 01:25:44,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:44,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:25:44,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:44,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:25:44,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:44,389 INFO L87 Difference]: Start difference. First operand 937 states and 1277 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 01:25:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:44,551 INFO L93 Difference]: Finished difference Result 1854 states and 2535 transitions. [2024-11-24 01:25:44,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:25:44,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 233 [2024-11-24 01:25:44,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:44,561 INFO L225 Difference]: With dead ends: 1854 [2024-11-24 01:25:44,561 INFO L226 Difference]: Without dead ends: 944 [2024-11-24 01:25:44,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:44,567 INFO L435 NwaCegarLoop]: 857 mSDtfsCounter, 3 mSDsluCounter, 3410 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4267 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:44,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4267 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:25:44,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2024-11-24 01:25:44,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 942. [2024-11-24 01:25:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 690 states have (on average 1.3405797101449275) internal successors, (925), 714 states have internal predecessors, (925), 174 states have call successors, (174), 77 states have call predecessors, (174), 76 states have return successors, (186), 168 states have call predecessors, (186), 173 states have call successors, (186) [2024-11-24 01:25:44,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1285 transitions. [2024-11-24 01:25:44,614 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1285 transitions. Word has length 233 [2024-11-24 01:25:44,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:44,615 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1285 transitions. [2024-11-24 01:25:44,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 01:25:44,615 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1285 transitions. [2024-11-24 01:25:44,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-24 01:25:44,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:44,624 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:44,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:25:44,625 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:44,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:44,625 INFO L85 PathProgramCache]: Analyzing trace with hash 909487763, now seen corresponding path program 1 times [2024-11-24 01:25:44,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:44,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526903786] [2024-11-24 01:25:44,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:44,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-24 01:25:46,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:46,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526903786] [2024-11-24 01:25:46,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526903786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:46,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:46,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:25:46,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107078289] [2024-11-24 01:25:46,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:46,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:25:46,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:46,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:25:46,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:46,198 INFO L87 Difference]: Start difference. First operand 942 states and 1285 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 01:25:46,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:46,325 INFO L93 Difference]: Finished difference Result 1860 states and 2543 transitions. [2024-11-24 01:25:46,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:25:46,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 249 [2024-11-24 01:25:46,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:46,335 INFO L225 Difference]: With dead ends: 1860 [2024-11-24 01:25:46,335 INFO L226 Difference]: Without dead ends: 945 [2024-11-24 01:25:46,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:46,341 INFO L435 NwaCegarLoop]: 865 mSDtfsCounter, 1 mSDsluCounter, 3442 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4307 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:46,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4307 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:25:46,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-24 01:25:46,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 939. [2024-11-24 01:25:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 688 states have (on average 1.3415697674418605) internal successors, (923), 712 states have internal predecessors, (923), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2024-11-24 01:25:46,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1279 transitions. [2024-11-24 01:25:46,387 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1279 transitions. Word has length 249 [2024-11-24 01:25:46,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:46,388 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1279 transitions. [2024-11-24 01:25:46,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 01:25:46,389 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1279 transitions. [2024-11-24 01:25:46,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-24 01:25:46,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:46,397 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:46,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:25:46,398 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:46,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:46,398 INFO L85 PathProgramCache]: Analyzing trace with hash 400014673, now seen corresponding path program 1 times [2024-11-24 01:25:46,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:46,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082114710] [2024-11-24 01:25:46,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:46,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:48,484 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-24 01:25:48,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:48,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082114710] [2024-11-24 01:25:48,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082114710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:25:48,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038297921] [2024-11-24 01:25:48,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:48,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:48,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:48,490 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:48,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:25:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:50,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 3077 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:25:50,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:50,883 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-24 01:25:50,883 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:25:50,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038297921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:50,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:25:50,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-11-24 01:25:50,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646066132] [2024-11-24 01:25:50,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:50,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:25:50,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:50,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:25:50,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:25:50,886 INFO L87 Difference]: Start difference. First operand 939 states and 1279 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-24 01:25:51,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:51,024 INFO L93 Difference]: Finished difference Result 1854 states and 2531 transitions. [2024-11-24 01:25:51,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:25:51,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 249 [2024-11-24 01:25:51,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:51,034 INFO L225 Difference]: With dead ends: 1854 [2024-11-24 01:25:51,034 INFO L226 Difference]: Without dead ends: 942 [2024-11-24 01:25:51,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:25:51,040 INFO L435 NwaCegarLoop]: 857 mSDtfsCounter, 0 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3409 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:51,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3409 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:25:51,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-24 01:25:51,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 939. [2024-11-24 01:25:51,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 688 states have (on average 1.3415697674418605) internal successors, (923), 712 states have internal predecessors, (923), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2024-11-24 01:25:51,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1279 transitions. [2024-11-24 01:25:51,087 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1279 transitions. Word has length 249 [2024-11-24 01:25:51,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:51,087 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1279 transitions. [2024-11-24 01:25:51,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-24 01:25:51,088 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1279 transitions. [2024-11-24 01:25:51,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-24 01:25:51,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:51,096 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:51,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 01:25:51,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 01:25:51,297 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:51,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:51,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1162153942, now seen corresponding path program 1 times [2024-11-24 01:25:51,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:51,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884577744] [2024-11-24 01:25:51,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:51,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:52,632 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-24 01:25:52,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:52,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884577744] [2024-11-24 01:25:52,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884577744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:52,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:52,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:52,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160185090] [2024-11-24 01:25:52,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:52,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:52,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:52,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:52,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:52,635 INFO L87 Difference]: Start difference. First operand 939 states and 1279 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:25:52,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:52,699 INFO L93 Difference]: Finished difference Result 1852 states and 2529 transitions. [2024-11-24 01:25:52,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:52,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 270 [2024-11-24 01:25:52,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:52,710 INFO L225 Difference]: With dead ends: 1852 [2024-11-24 01:25:52,710 INFO L226 Difference]: Without dead ends: 940 [2024-11-24 01:25:52,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:52,716 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 0 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1712 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 [2024-11-24 01:25:52,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1712 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:52,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2024-11-24 01:25:52,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 940. [2024-11-24 01:25:52,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 689 states have (on average 1.3410740203193032) internal successors, (924), 713 states have internal predecessors, (924), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2024-11-24 01:25:52,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1280 transitions. [2024-11-24 01:25:52,762 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1280 transitions. Word has length 270 [2024-11-24 01:25:52,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:52,763 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1280 transitions. [2024-11-24 01:25:52,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:25:52,763 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1280 transitions. [2024-11-24 01:25:52,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-24 01:25:52,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:52,773 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:52,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:25:52,773 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:52,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:52,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1932887508, now seen corresponding path program 1 times [2024-11-24 01:25:52,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:52,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200964657] [2024-11-24 01:25:52,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:52,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:54,522 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-24 01:25:54,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:54,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200964657] [2024-11-24 01:25:54,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200964657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:54,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:25:54,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:25:54,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936502614] [2024-11-24 01:25:54,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:54,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:25:54,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:54,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:25:54,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:54,526 INFO L87 Difference]: Start difference. First operand 940 states and 1280 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:25:54,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:54,602 INFO L93 Difference]: Finished difference Result 1855 states and 2532 transitions. [2024-11-24 01:25:54,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:25:54,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 270 [2024-11-24 01:25:54,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:54,619 INFO L225 Difference]: With dead ends: 1855 [2024-11-24 01:25:54,619 INFO L226 Difference]: Without dead ends: 942 [2024-11-24 01:25:54,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:25:54,625 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 1 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1712 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 [2024-11-24 01:25:54,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1712 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:54,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-24 01:25:54,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 941. [2024-11-24 01:25:54,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 690 states have (on average 1.3405797101449275) internal successors, (925), 714 states have internal predecessors, (925), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2024-11-24 01:25:54,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1281 transitions. [2024-11-24 01:25:54,680 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1281 transitions. Word has length 270 [2024-11-24 01:25:54,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:54,682 INFO L471 AbstractCegarLoop]: Abstraction has 941 states and 1281 transitions. [2024-11-24 01:25:54,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:25:54,682 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1281 transitions. [2024-11-24 01:25:54,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-24 01:25:54,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:54,693 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:54,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:25:54,694 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:54,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:54,694 INFO L85 PathProgramCache]: Analyzing trace with hash -2142793392, now seen corresponding path program 1 times [2024-11-24 01:25:54,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:54,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614624566] [2024-11-24 01:25:54,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:54,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:55,854 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-24 01:25:55,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:55,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614624566] [2024-11-24 01:25:55,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614624566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:25:55,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481407379] [2024-11-24 01:25:55,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:55,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:55,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:55,857 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:55,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:25:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:58,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:25:58,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:58,308 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-24 01:25:58,308 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:25:58,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481407379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:58,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:25:58,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-24 01:25:58,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683740544] [2024-11-24 01:25:58,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:58,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:25:58,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:58,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:25:58,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:58,311 INFO L87 Difference]: Start difference. First operand 941 states and 1281 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:25:58,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:58,420 INFO L93 Difference]: Finished difference Result 1857 states and 2534 transitions. [2024-11-24 01:25:58,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:25:58,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 272 [2024-11-24 01:25:58,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:58,432 INFO L225 Difference]: With dead ends: 1857 [2024-11-24 01:25:58,432 INFO L226 Difference]: Without dead ends: 943 [2024-11-24 01:25:58,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:25:58,439 INFO L435 NwaCegarLoop]: 857 mSDtfsCounter, 1 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:58,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2561 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:25:58,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-11-24 01:25:58,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 943. [2024-11-24 01:25:58,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 692 states have (on average 1.3395953757225434) internal successors, (927), 716 states have internal predecessors, (927), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2024-11-24 01:25:58,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1283 transitions. [2024-11-24 01:25:58,513 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1283 transitions. Word has length 272 [2024-11-24 01:25:58,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:58,514 INFO L471 AbstractCegarLoop]: Abstraction has 943 states and 1283 transitions. [2024-11-24 01:25:58,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:25:58,515 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1283 transitions. [2024-11-24 01:25:58,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-24 01:25:58,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:58,527 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:58,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:25:58,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-24 01:25:58,728 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:25:58,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:58,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1268664914, now seen corresponding path program 1 times [2024-11-24 01:25:58,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:58,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656371454] [2024-11-24 01:25:58,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:58,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:59,931 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-24 01:25:59,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:59,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656371454] [2024-11-24 01:25:59,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656371454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:25:59,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884012933] [2024-11-24 01:25:59,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:59,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:59,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:59,934 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:59,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:26:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:02,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 3197 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:26:02,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:02,270 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-24 01:26:02,271 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:26:02,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884012933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:02,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:26:02,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-24 01:26:02,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548271482] [2024-11-24 01:26:02,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:02,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:26:02,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:02,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:26:02,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:26:02,274 INFO L87 Difference]: Start difference. First operand 943 states and 1283 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:26:02,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:02,363 INFO L93 Difference]: Finished difference Result 1861 states and 2538 transitions. [2024-11-24 01:26:02,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:26:02,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 272 [2024-11-24 01:26:02,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:02,372 INFO L225 Difference]: With dead ends: 1861 [2024-11-24 01:26:02,372 INFO L226 Difference]: Without dead ends: 945 [2024-11-24 01:26:02,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:26:02,377 INFO L435 NwaCegarLoop]: 857 mSDtfsCounter, 1 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:02,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2559 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:26:02,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-24 01:26:02,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 945. [2024-11-24 01:26:02,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 694 states have (on average 1.3386167146974064) internal successors, (929), 718 states have internal predecessors, (929), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2024-11-24 01:26:02,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1285 transitions. [2024-11-24 01:26:02,421 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1285 transitions. Word has length 272 [2024-11-24 01:26:02,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:02,422 INFO L471 AbstractCegarLoop]: Abstraction has 945 states and 1285 transitions. [2024-11-24 01:26:02,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 01:26:02,422 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1285 transitions. [2024-11-24 01:26:02,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-24 01:26:02,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:02,429 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:02,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 01:26:02,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 01:26:02,630 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:26:02,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:02,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1674917164, now seen corresponding path program 1 times [2024-11-24 01:26:02,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:02,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181883023] [2024-11-24 01:26:02,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:02,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-24 01:26:04,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:04,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181883023] [2024-11-24 01:26:04,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181883023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:04,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490520821] [2024-11-24 01:26:04,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:04,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:04,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:04,039 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:04,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:26:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:06,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 3200 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:26:06,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 64 proven. 1 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-24 01:26:06,388 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-24 01:26:06,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490520821] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:26:06,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:26:06,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-24 01:26:06,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20307411] [2024-11-24 01:26:06,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:26:06,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:26:06,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:06,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:26:06,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:26:06,959 INFO L87 Difference]: Start difference. First operand 945 states and 1285 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-24 01:26:07,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:07,110 INFO L93 Difference]: Finished difference Result 1869 states and 2548 transitions. [2024-11-24 01:26:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:26:07,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 272 [2024-11-24 01:26:07,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:07,120 INFO L225 Difference]: With dead ends: 1869 [2024-11-24 01:26:07,120 INFO L226 Difference]: Without dead ends: 951 [2024-11-24 01:26:07,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:26:07,126 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 2 mSDsluCounter, 2562 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3420 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:07,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3420 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:26:07,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2024-11-24 01:26:07,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 951. [2024-11-24 01:26:07,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 700 states have (on average 1.3357142857142856) internal successors, (935), 724 states have internal predecessors, (935), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2024-11-24 01:26:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1291 transitions. [2024-11-24 01:26:07,175 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1291 transitions. Word has length 272 [2024-11-24 01:26:07,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:07,177 INFO L471 AbstractCegarLoop]: Abstraction has 951 states and 1291 transitions. [2024-11-24 01:26:07,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-24 01:26:07,177 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1291 transitions. [2024-11-24 01:26:07,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-24 01:26:07,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:07,185 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:07,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 01:26:07,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 01:26:07,386 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:26:07,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:07,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1827374912, now seen corresponding path program 2 times [2024-11-24 01:26:07,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:07,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992525508] [2024-11-24 01:26:07,387 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:26:07,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:08,450 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:26:08,450 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:26:08,826 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-24 01:26:08,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:08,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992525508] [2024-11-24 01:26:08,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992525508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:08,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:08,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:26:08,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103479620] [2024-11-24 01:26:08,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:08,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:26:08,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:08,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:26:08,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:26:08,828 INFO L87 Difference]: Start difference. First operand 951 states and 1291 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:26:08,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:08,918 INFO L93 Difference]: Finished difference Result 1876 states and 2553 transitions. [2024-11-24 01:26:08,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:26:08,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 278 [2024-11-24 01:26:08,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:08,928 INFO L225 Difference]: With dead ends: 1876 [2024-11-24 01:26:08,928 INFO L226 Difference]: Without dead ends: 952 [2024-11-24 01:26:08,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:26:08,933 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 18 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:08,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2565 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:26:08,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-11-24 01:26:08,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 951. [2024-11-24 01:26:08,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 700 states have (on average 1.332857142857143) internal successors, (933), 724 states have internal predecessors, (933), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2024-11-24 01:26:08,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1289 transitions. [2024-11-24 01:26:08,986 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1289 transitions. Word has length 278 [2024-11-24 01:26:08,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:08,989 INFO L471 AbstractCegarLoop]: Abstraction has 951 states and 1289 transitions. [2024-11-24 01:26:08,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 01:26:08,989 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1289 transitions. [2024-11-24 01:26:08,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-24 01:26:08,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:08,996 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:08,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:26:08,996 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:26:08,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:08,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1112434403, now seen corresponding path program 1 times [2024-11-24 01:26:08,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:08,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9057200] [2024-11-24 01:26:08,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:08,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:10,554 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-24 01:26:10,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:10,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9057200] [2024-11-24 01:26:10,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9057200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:10,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79200768] [2024-11-24 01:26:10,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:10,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:10,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:10,558 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:10,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 01:26:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:12,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 3251 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:26:12,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:12,890 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 64 proven. 16 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-24 01:26:12,891 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:13,583 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-24 01:26:13,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79200768] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:26:13,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:26:13,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-24 01:26:13,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636228170] [2024-11-24 01:26:13,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:26:13,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:26:13,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:13,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:26:13,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:26:13,592 INFO L87 Difference]: Start difference. First operand 951 states and 1289 transitions. Second operand has 13 states, 13 states have (on average 14.461538461538462) internal successors, (188), 13 states have internal predecessors, (188), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-24 01:26:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:13,759 INFO L93 Difference]: Finished difference Result 1887 states and 2565 transitions. [2024-11-24 01:26:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:26:13,761 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 14.461538461538462) internal successors, (188), 13 states have internal predecessors, (188), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 280 [2024-11-24 01:26:13,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:13,770 INFO L225 Difference]: With dead ends: 1887 [2024-11-24 01:26:13,770 INFO L226 Difference]: Without dead ends: 963 [2024-11-24 01:26:13,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:26:13,774 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 2 mSDsluCounter, 4260 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5116 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:13,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5116 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:26:13,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-24 01:26:13,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2024-11-24 01:26:13,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 712 states have (on average 1.327247191011236) internal successors, (945), 736 states have internal predecessors, (945), 174 states have call successors, (174), 77 states have call predecessors, (174), 75 states have return successors, (182), 168 states have call predecessors, (182), 173 states have call successors, (182) [2024-11-24 01:26:13,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1301 transitions. [2024-11-24 01:26:13,817 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1301 transitions. Word has length 280 [2024-11-24 01:26:13,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:13,817 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1301 transitions. [2024-11-24 01:26:13,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.461538461538462) internal successors, (188), 13 states have internal predecessors, (188), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-24 01:26:13,818 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1301 transitions. [2024-11-24 01:26:13,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-24 01:26:13,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:13,824 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:13,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 01:26:14,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-24 01:26:14,025 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:26:14,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:14,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1396013381, now seen corresponding path program 2 times [2024-11-24 01:26:14,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:14,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653582558] [2024-11-24 01:26:14,026 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:26:14,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:14,663 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:26:14,663 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:26:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-24 01:26:15,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:15,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653582558] [2024-11-24 01:26:15,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653582558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:15,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:15,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:26:15,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470704440] [2024-11-24 01:26:15,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:15,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:26:15,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:15,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:26:15,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:26:15,232 INFO L87 Difference]: Start difference. First operand 963 states and 1301 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:26:15,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:15,401 INFO L93 Difference]: Finished difference Result 1905 states and 2589 transitions. [2024-11-24 01:26:15,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:26:15,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 292 [2024-11-24 01:26:15,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:15,411 INFO L225 Difference]: With dead ends: 1905 [2024-11-24 01:26:15,411 INFO L226 Difference]: Without dead ends: 969 [2024-11-24 01:26:15,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:26:15,415 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 0 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:15,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3426 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:26:15,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2024-11-24 01:26:15,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 967. [2024-11-24 01:26:15,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 715 states have (on average 1.3258741258741258) internal successors, (948), 739 states have internal predecessors, (948), 174 states have call successors, (174), 77 states have call predecessors, (174), 76 states have return successors, (184), 169 states have call predecessors, (184), 173 states have call successors, (184) [2024-11-24 01:26:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1306 transitions. [2024-11-24 01:26:15,467 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1306 transitions. Word has length 292 [2024-11-24 01:26:15,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:15,468 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 1306 transitions. [2024-11-24 01:26:15,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-24 01:26:15,468 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1306 transitions. [2024-11-24 01:26:15,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-24 01:26:15,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:15,474 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:15,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:26:15,474 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:26:15,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:15,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1953879331, now seen corresponding path program 1 times [2024-11-24 01:26:15,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:15,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458511914] [2024-11-24 01:26:15,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:15,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 3 proven. 100 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-24 01:26:17,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:17,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458511914] [2024-11-24 01:26:17,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458511914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:17,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439563377] [2024-11-24 01:26:17,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:17,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:17,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:17,326 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:17,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 01:26:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:19,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 3379 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 01:26:19,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:20,086 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 64 proven. 100 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-24 01:26:20,087 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:20,961 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 3 proven. 100 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-24 01:26:20,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439563377] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:26:20,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:26:20,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-11-24 01:26:20,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695078036] [2024-11-24 01:26:20,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:26:20,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 01:26:20,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:20,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 01:26:20,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:26:20,966 INFO L87 Difference]: Start difference. First operand 967 states and 1306 transitions. Second operand has 25 states, 25 states have (on average 8.64) internal successors, (216), 25 states have internal predecessors, (216), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:26:21,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:21,184 INFO L93 Difference]: Finished difference Result 1931 states and 2617 transitions. [2024-11-24 01:26:21,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 01:26:21,185 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.64) internal successors, (216), 25 states have internal predecessors, (216), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 292 [2024-11-24 01:26:21,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:21,194 INFO L225 Difference]: With dead ends: 1931 [2024-11-24 01:26:21,194 INFO L226 Difference]: Without dead ends: 991 [2024-11-24 01:26:21,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 572 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:26:21,199 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 2 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3412 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:21,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3412 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:26:21,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-11-24 01:26:21,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 991. [2024-11-24 01:26:21,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 739 states have (on average 1.3152909336941814) internal successors, (972), 763 states have internal predecessors, (972), 174 states have call successors, (174), 77 states have call predecessors, (174), 76 states have return successors, (184), 169 states have call predecessors, (184), 173 states have call successors, (184) [2024-11-24 01:26:21,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1330 transitions. [2024-11-24 01:26:21,240 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1330 transitions. Word has length 292 [2024-11-24 01:26:21,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:21,240 INFO L471 AbstractCegarLoop]: Abstraction has 991 states and 1330 transitions. [2024-11-24 01:26:21,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.64) internal successors, (216), 25 states have internal predecessors, (216), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:26:21,241 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1330 transitions. [2024-11-24 01:26:21,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-24 01:26:21,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:21,247 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:21,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-24 01:26:21,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:21,449 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:26:21,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:21,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1233890515, now seen corresponding path program 2 times [2024-11-24 01:26:21,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:21,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693290894] [2024-11-24 01:26:21,450 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:26:21,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:22,511 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:26:22,512 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:26:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2024-11-24 01:26:22,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:22,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693290894] [2024-11-24 01:26:22,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693290894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:22,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:22,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:26:22,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217445559] [2024-11-24 01:26:22,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:22,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:26:22,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:22,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:26:22,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:26:22,865 INFO L87 Difference]: Start difference. First operand 991 states and 1330 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-24 01:26:22,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:22,999 INFO L93 Difference]: Finished difference Result 1964 states and 2690 transitions. [2024-11-24 01:26:22,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:26:23,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 316 [2024-11-24 01:26:23,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:23,012 INFO L225 Difference]: With dead ends: 1964 [2024-11-24 01:26:23,012 INFO L226 Difference]: Without dead ends: 1000 [2024-11-24 01:26:23,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:26:23,019 INFO L435 NwaCegarLoop]: 854 mSDtfsCounter, 4 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:23,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2554 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:26:23,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2024-11-24 01:26:23,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 999. [2024-11-24 01:26:23,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 745 states have (on average 1.316778523489933) internal successors, (981), 770 states have internal predecessors, (981), 174 states have call successors, (174), 78 states have call predecessors, (174), 78 states have return successors, (188), 169 states have call predecessors, (188), 173 states have call successors, (188) [2024-11-24 01:26:23,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1343 transitions. [2024-11-24 01:26:23,071 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1343 transitions. Word has length 316 [2024-11-24 01:26:23,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:23,074 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1343 transitions. [2024-11-24 01:26:23,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-24 01:26:23,074 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1343 transitions. [2024-11-24 01:26:23,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-24 01:26:23,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:23,080 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:23,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:26:23,081 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:26:23,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:23,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1989541429, now seen corresponding path program 1 times [2024-11-24 01:26:23,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:23,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006351158] [2024-11-24 01:26:23,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:23,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:26,419 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 3 proven. 484 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-24 01:26:26,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:26,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006351158] [2024-11-24 01:26:26,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006351158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:26,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259200361] [2024-11-24 01:26:26,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:26,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:26,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:26,424 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:26,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 01:26:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:29,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 3613 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:26:29,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:29,372 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 68 proven. 484 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-24 01:26:29,372 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:30,656 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 3 proven. 484 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-24 01:26:30,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259200361] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:26:30,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:26:30,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 33 [2024-11-24 01:26:30,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913475924] [2024-11-24 01:26:30,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:26:30,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-24 01:26:30,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:30,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-24 01:26:30,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:26:30,660 INFO L87 Difference]: Start difference. First operand 999 states and 1343 transitions. Second operand has 33 states, 33 states have (on average 7.151515151515151) internal successors, (236), 33 states have internal predecessors, (236), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:26:30,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:30,949 INFO L93 Difference]: Finished difference Result 1987 states and 2679 transitions. [2024-11-24 01:26:30,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-24 01:26:30,959 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 7.151515151515151) internal successors, (236), 33 states have internal predecessors, (236), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 318 [2024-11-24 01:26:30,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:30,970 INFO L225 Difference]: With dead ends: 1987 [2024-11-24 01:26:30,970 INFO L226 Difference]: Without dead ends: 1015 [2024-11-24 01:26:30,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 612 SyntacticMatches, 16 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:26:30,977 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 1 mSDsluCounter, 3408 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4264 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:30,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4264 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:26:30,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-11-24 01:26:31,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2024-11-24 01:26:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 761 states have (on average 1.3101182654402102) internal successors, (997), 786 states have internal predecessors, (997), 174 states have call successors, (174), 78 states have call predecessors, (174), 78 states have return successors, (188), 169 states have call predecessors, (188), 173 states have call successors, (188) [2024-11-24 01:26:31,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1359 transitions. [2024-11-24 01:26:31,024 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1359 transitions. Word has length 318 [2024-11-24 01:26:31,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:31,025 INFO L471 AbstractCegarLoop]: Abstraction has 1015 states and 1359 transitions. [2024-11-24 01:26:31,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 7.151515151515151) internal successors, (236), 33 states have internal predecessors, (236), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 01:26:31,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1359 transitions. [2024-11-24 01:26:31,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-24 01:26:31,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:31,032 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:31,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 01:26:31,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-24 01:26:31,233 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:26:31,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:31,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1741740885, now seen corresponding path program 2 times [2024-11-24 01:26:31,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:31,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103153300] [2024-11-24 01:26:31,235 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:26:31,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:32,076 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:26:32,076 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:26:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1074 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 1042 trivial. 0 not checked. [2024-11-24 01:26:32,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:32,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103153300] [2024-11-24 01:26:32,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103153300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:32,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:26:32,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:26:32,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883148491] [2024-11-24 01:26:32,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:32,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:26:32,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:32,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:26:32,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:26:32,783 INFO L87 Difference]: Start difference. First operand 1015 states and 1359 transitions. Second operand has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-24 01:26:33,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:33,085 INFO L93 Difference]: Finished difference Result 2057 states and 2773 transitions. [2024-11-24 01:26:33,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:26:33,086 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) Word has length 334 [2024-11-24 01:26:33,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:33,096 INFO L225 Difference]: With dead ends: 2057 [2024-11-24 01:26:33,096 INFO L226 Difference]: Without dead ends: 1069 [2024-11-24 01:26:33,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:26:33,101 INFO L435 NwaCegarLoop]: 851 mSDtfsCounter, 11 mSDsluCounter, 5946 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6797 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:33,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6797 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:26:33,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2024-11-24 01:26:33,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1031. [2024-11-24 01:26:33,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 775 states have (on average 1.3096774193548386) internal successors, (1015), 800 states have internal predecessors, (1015), 175 states have call successors, (175), 78 states have call predecessors, (175), 79 states have return successors, (192), 171 states have call predecessors, (192), 174 states have call successors, (192) [2024-11-24 01:26:33,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1382 transitions. [2024-11-24 01:26:33,148 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1382 transitions. Word has length 334 [2024-11-24 01:26:33,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:33,149 INFO L471 AbstractCegarLoop]: Abstraction has 1031 states and 1382 transitions. [2024-11-24 01:26:33,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.666666666666668) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-24 01:26:33,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1382 transitions. [2024-11-24 01:26:33,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-11-24 01:26:33,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:33,156 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:33,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 01:26:33,156 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:26:33,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:33,157 INFO L85 PathProgramCache]: Analyzing trace with hash 2108132939, now seen corresponding path program 1 times [2024-11-24 01:26:33,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:33,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835037787] [2024-11-24 01:26:33,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:33,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:35,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2024-11-24 01:26:35,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:35,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835037787] [2024-11-24 01:26:35,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835037787] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:35,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089234106] [2024-11-24 01:26:35,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:35,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:35,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:35,490 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:35,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 01:26:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:38,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 3883 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:26:38,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:38,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1178 trivial. 0 not checked. [2024-11-24 01:26:38,836 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:26:38,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089234106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:38,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:26:38,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-24 01:26:38,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272047826] [2024-11-24 01:26:38,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:38,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:26:38,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:38,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:26:38,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:26:38,838 INFO L87 Difference]: Start difference. First operand 1031 states and 1382 transitions. Second operand has 6 states, 5 states have (on average 30.4) internal successors, (152), 6 states have internal predecessors, (152), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2024-11-24 01:26:39,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:39,977 INFO L93 Difference]: Finished difference Result 2083 states and 2807 transitions. [2024-11-24 01:26:39,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:26:39,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 30.4) internal successors, (152), 6 states have internal predecessors, (152), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) Word has length 374 [2024-11-24 01:26:39,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:39,988 INFO L225 Difference]: With dead ends: 2083 [2024-11-24 01:26:39,988 INFO L226 Difference]: Without dead ends: 1059 [2024-11-24 01:26:39,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:26:39,994 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 16 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 4227 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:39,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 4227 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:26:39,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-11-24 01:26:40,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1038. [2024-11-24 01:26:40,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 781 states have (on average 1.3085787451984634) internal successors, (1022), 807 states have internal predecessors, (1022), 175 states have call successors, (175), 78 states have call predecessors, (175), 80 states have return successors, (193), 171 states have call predecessors, (193), 174 states have call successors, (193) [2024-11-24 01:26:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1390 transitions. [2024-11-24 01:26:40,042 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1390 transitions. Word has length 374 [2024-11-24 01:26:40,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:40,042 INFO L471 AbstractCegarLoop]: Abstraction has 1038 states and 1390 transitions. [2024-11-24 01:26:40,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 30.4) internal successors, (152), 6 states have internal predecessors, (152), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2024-11-24 01:26:40,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1390 transitions. [2024-11-24 01:26:40,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-24 01:26:40,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:40,050 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:40,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-24 01:26:40,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-24 01:26:40,251 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:26:40,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:40,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1084720245, now seen corresponding path program 1 times [2024-11-24 01:26:40,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:40,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822634347] [2024-11-24 01:26:40,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:40,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:42,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2024-11-24 01:26:42,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:42,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822634347] [2024-11-24 01:26:42,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822634347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:42,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243052856] [2024-11-24 01:26:42,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:42,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:42,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:42,512 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:42,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 01:26:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:46,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 3961 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 01:26:46,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:46,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2024-11-24 01:26:46,142 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:26:46,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243052856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:46,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:26:46,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-11-24 01:26:46,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532045914] [2024-11-24 01:26:46,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:46,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:26:46,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:46,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:26:46,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:26:46,145 INFO L87 Difference]: Start difference. First operand 1038 states and 1390 transitions. Second operand has 5 states, 4 states have (on average 35.75) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-24 01:26:46,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:46,211 INFO L93 Difference]: Finished difference Result 2055 states and 2756 transitions. [2024-11-24 01:26:46,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:26:46,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 35.75) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) Word has length 378 [2024-11-24 01:26:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:46,221 INFO L225 Difference]: With dead ends: 2055 [2024-11-24 01:26:46,221 INFO L226 Difference]: Without dead ends: 1039 [2024-11-24 01:26:46,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:26:46,227 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 1 mSDsluCounter, 2562 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3418 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:46,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3418 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:26:46,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-24 01:26:46,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1039. [2024-11-24 01:26:46,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 782 states have (on average 1.3081841432225063) internal successors, (1023), 808 states have internal predecessors, (1023), 175 states have call successors, (175), 78 states have call predecessors, (175), 80 states have return successors, (193), 171 states have call predecessors, (193), 174 states have call successors, (193) [2024-11-24 01:26:46,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1391 transitions. [2024-11-24 01:26:46,273 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1391 transitions. Word has length 378 [2024-11-24 01:26:46,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:46,273 INFO L471 AbstractCegarLoop]: Abstraction has 1039 states and 1391 transitions. [2024-11-24 01:26:46,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 35.75) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-24 01:26:46,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1391 transitions. [2024-11-24 01:26:46,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-11-24 01:26:46,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:46,281 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:46,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-24 01:26:46,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-24 01:26:46,482 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:26:46,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:46,482 INFO L85 PathProgramCache]: Analyzing trace with hash -563714547, now seen corresponding path program 1 times [2024-11-24 01:26:46,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:46,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942807997] [2024-11-24 01:26:46,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:46,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2024-11-24 01:26:48,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:48,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942807997] [2024-11-24 01:26:48,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942807997] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:48,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69971361] [2024-11-24 01:26:48,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:48,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:48,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:48,525 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:48,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-24 01:26:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:52,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 3976 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-24 01:26:52,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2024-11-24 01:26:52,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:26:52,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69971361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:26:52,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:26:52,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2024-11-24 01:26:52,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015390990] [2024-11-24 01:26:52,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:52,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:26:52,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:52,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:26:52,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:26:52,200 INFO L87 Difference]: Start difference. First operand 1039 states and 1391 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-24 01:26:52,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:52,378 INFO L93 Difference]: Finished difference Result 2337 states and 3115 transitions. [2024-11-24 01:26:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:26:52,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 379 [2024-11-24 01:26:52,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:52,389 INFO L225 Difference]: With dead ends: 2337 [2024-11-24 01:26:52,389 INFO L226 Difference]: Without dead ends: 1326 [2024-11-24 01:26:52,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:26:52,393 INFO L435 NwaCegarLoop]: 855 mSDtfsCounter, 332 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 4247 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:52,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 4247 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:26:52,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-11-24 01:26:52,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1313. [2024-11-24 01:26:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 981 states have (on average 1.3007135575942916) internal successors, (1276), 1014 states have internal predecessors, (1276), 220 states have call successors, (220), 104 states have call predecessors, (220), 110 states have return successors, (245), 215 states have call predecessors, (245), 219 states have call successors, (245) [2024-11-24 01:26:52,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1741 transitions. [2024-11-24 01:26:52,456 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1741 transitions. Word has length 379 [2024-11-24 01:26:52,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:52,456 INFO L471 AbstractCegarLoop]: Abstraction has 1313 states and 1741 transitions. [2024-11-24 01:26:52,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 5 states have internal predecessors, (143), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-24 01:26:52,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1741 transitions. [2024-11-24 01:26:52,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-24 01:26:52,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:52,464 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:52,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-24 01:26:52,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-24 01:26:52,665 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2024-11-24 01:26:52,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:52,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1811941236, now seen corresponding path program 2 times [2024-11-24 01:26:52,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:52,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454390318] [2024-11-24 01:26:52,666 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:26:52,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:53,736 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:26:53,736 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:26:55,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2024-11-24 01:26:55,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:55,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454390318] [2024-11-24 01:26:55,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454390318] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:55,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126719385] [2024-11-24 01:26:55,380 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:26:55,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:55,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:55,383 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:55,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc4a67e-1242-4b66-b0ff-73ad2e645087/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process