./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1 --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 be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:18:15,356 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:18:15,414 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 08:18:15,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:18:15,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:18:15,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:18:15,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:18:15,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:18:15,440 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:18:15,440 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:18:15,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:18:15,440 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:18:15,440 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:18:15,440 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:18:15,441 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:18:15,441 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:18:15,441 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:18:15,441 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:18:15,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:18:15,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:18:15,441 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:18:15,441 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:18:15,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:18:15,441 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:18:15,442 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:18:15,442 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:18:15,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:18:15,442 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:18:15,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:18:15,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:18:15,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:18:15,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:18:15,442 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:18:15,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:18:15,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:18:15,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:18:15,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:18:15,443 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:18:15,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:18:15,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:18:15,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:18:15,443 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:18:15,443 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:18:15,443 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:18:15,443 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:18:15,444 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_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1 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 -> be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 [2024-12-02 08:18:15,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:18:15,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:18:15,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:18:15,662 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:18:15,663 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:18:15,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-12-02 08:18:18,413 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/data/e3d232181/087bb39f330b45f79ecbd4d2b9565a61/FLAGcf1034ab5 [2024-12-02 08:18:18,823 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:18:18,823 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-12-02 08:18:18,861 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/data/e3d232181/087bb39f330b45f79ecbd4d2b9565a61/FLAGcf1034ab5 [2024-12-02 08:18:18,966 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/data/e3d232181/087bb39f330b45f79ecbd4d2b9565a61 [2024-12-02 08:18:18,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:18:18,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:18:18,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:18:18,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:18:18,976 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:18:18,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:18:18" (1/1) ... [2024-12-02 08:18:18,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7693eaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:18, skipping insertion in model container [2024-12-02 08:18:18,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:18:18" (1/1) ... [2024-12-02 08:18:19,052 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:18:19,731 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_2cd63cb8-858b-4748-b967-15f433251e67/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2024-12-02 08:18:20,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:18:20,129 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:18:20,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5441] [2024-12-02 08:18:20,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5448] [2024-12-02 08:18:20,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5456-5457] [2024-12-02 08:18:20,238 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; incl %0": "+m" (v->counter)); [5485] [2024-12-02 08:18:20,238 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; decl %0": "+m" (v->counter)); [5492] [2024-12-02 08:18:20,248 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_2cd63cb8-858b-4748-b967-15f433251e67/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2024-12-02 08:18:20,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/6225/dscv_tempdir/dscv/ri/144_2a/drivers/net/can/usb/ems_usb.o.c.prepared"), "i" (546), "i" (12UL)); [6159-6160] [2024-12-02 08:18:20,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:18:20,447 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:18:20,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20 WrapperNode [2024-12-02 08:18:20,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:18:20,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:18:20,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:18:20,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:18:20,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:20,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:20,562 INFO L138 Inliner]: procedures = 168, calls = 765, calls flagged for inlining = 78, calls inlined = 78, statements flattened = 2252 [2024-12-02 08:18:20,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:18:20,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:18:20,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:18:20,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:18:20,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:20,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:20,586 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:20,900 INFO L175 MemorySlicer]: Split 454 memory accesses to 8 slices as follows [2, 44, 20, 9, 342, 9, 20, 8]. 75 percent of accesses are in the largest equivalence class. The 44 initializations are split as follows [2, 0, 0, 0, 34, 0, 0, 8]. The 224 writes are split as follows [0, 44, 11, 0, 164, 5, 0, 0]. [2024-12-02 08:18:20,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:20,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:20,956 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:20,960 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:20,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:20,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:20,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:21,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:18:21,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:18:21,009 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:18:21,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:18:21,010 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (1/1) ... [2024-12-02 08:18:21,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:18:21,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:18:21,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:18:21,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:18:21,074 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-12-02 08:18:21,074 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-12-02 08:18:21,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 08:18:21,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 08:18:21,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 08:18:21,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 08:18:21,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 08:18:21,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 08:18:21,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 08:18:21,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 08:18:21,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2024-12-02 08:18:21,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2024-12-02 08:18:21,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2024-12-02 08:18:21,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2024-12-02 08:18:21,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2024-12-02 08:18:21,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2024-12-02 08:18:21,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2024-12-02 08:18:21,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2024-12-02 08:18:21,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 08:18:21,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 08:18:21,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 08:18:21,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 08:18:21,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 08:18:21,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 08:18:21,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 08:18:21,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 08:18:21,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 08:18:21,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 08:18:21,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 08:18:21,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 08:18:21,078 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-12-02 08:18:21,078 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-12-02 08:18:21,078 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_bulk_callback [2024-12-02 08:18:21,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_bulk_callback [2024-12-02 08:18:21,078 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-12-02 08:18:21,078 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-12-02 08:18:21,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-12-02 08:18:21,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-12-02 08:18:21,078 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2024-12-02 08:18:21,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2024-12-02 08:18:21,078 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-12-02 08:18:21,078 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-12-02 08:18:21,078 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-12-02 08:18:21,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-12-02 08:18:21,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 08:18:21,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 08:18:21,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-12-02 08:18:21,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-12-02 08:18:21,079 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-12-02 08:18:21,080 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-12-02 08:18:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-12-02 08:18:21,080 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-12-02 08:18:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 08:18:21,080 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 08:18:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-12-02 08:18:21,080 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-12-02 08:18:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:18:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:18:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 08:18:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 08:18:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 08:18:21,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 08:18:21,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 08:18:21,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 08:18:21,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 08:18:21,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 08:18:21,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 08:18:21,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 08:18:21,081 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:18:21,081 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:18:21,081 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-12-02 08:18:21,081 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-12-02 08:18:21,081 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2024-12-02 08:18:21,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2024-12-02 08:18:21,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 08:18:21,081 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-12-02 08:18:21,081 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-12-02 08:18:21,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-12-02 08:18:21,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-12-02 08:18:21,082 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-12-02 08:18:21,082 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-12-02 08:18:21,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:18:21,082 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-12-02 08:18:21,082 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-12-02 08:18:21,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-12-02 08:18:21,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-12-02 08:18:21,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 08:18:21,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 08:18:21,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 08:18:21,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 08:18:21,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 08:18:21,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 08:18:21,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 08:18:21,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 08:18:21,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 08:18:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2024-12-02 08:18:21,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2024-12-02 08:18:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 08:18:21,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 08:18:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-12-02 08:18:21,084 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-12-02 08:18:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-12-02 08:18:21,084 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-12-02 08:18:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 08:18:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 08:18:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 08:18:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 08:18:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 08:18:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 08:18:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 08:18:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 08:18:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_disconnect [2024-12-02 08:18:21,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_disconnect [2024-12-02 08:18:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-12-02 08:18:21,085 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-12-02 08:18:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-12-02 08:18:21,085 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-12-02 08:18:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_interrupt_callback [2024-12-02 08:18:21,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_interrupt_callback [2024-12-02 08:18:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-12-02 08:18:21,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-12-02 08:18:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 08:18:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2024-12-02 08:18:21,085 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2024-12-02 08:18:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_err [2024-12-02 08:18:21,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_err [2024-12-02 08:18:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-12-02 08:18:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-12-02 08:18:21,086 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-12-02 08:18:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-12-02 08:18:21,086 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-12-02 08:18:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-12-02 08:18:21,086 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-12-02 08:18:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-12-02 08:18:21,086 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-12-02 08:18:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-12-02 08:18:21,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-12-02 08:18:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-12-02 08:18:21,086 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-12-02 08:18:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-12-02 08:18:21,086 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-12-02 08:18:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-12-02 08:18:21,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-12-02 08:18:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-12-02 08:18:21,087 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-12-02 08:18:21,087 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-12-02 08:18:21,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:18:21,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:18:21,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-12-02 08:18:21,088 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-12-02 08:18:21,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-12-02 08:18:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:18:21,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:18:21,549 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:18:21,550 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:18:21,622 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 08:18:22,144 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-12-02 08:18:30,540 INFO L? ?]: Removed 977 outVars from TransFormulas that were not future-live. [2024-12-02 08:18:30,540 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:18:30,562 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:18:30,562 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 08:18:30,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:18:30 BoogieIcfgContainer [2024-12-02 08:18:30,563 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:18:30,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:18:30,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:18:30,569 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:18:30,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:18:18" (1/3) ... [2024-12-02 08:18:30,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@597e3a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:18:30, skipping insertion in model container [2024-12-02 08:18:30,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:20" (2/3) ... [2024-12-02 08:18:30,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@597e3a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:18:30, skipping insertion in model container [2024-12-02 08:18:30,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:18:30" (3/3) ... [2024-12-02 08:18:30,571 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-12-02 08:18:30,582 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:18:30,584 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i that has 53 procedures, 784 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-12-02 08:18:30,639 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:18:30,648 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;@2cdc508e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:18:30,648 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:18:30,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 782 states, 573 states have (on average 1.343804537521815) internal successors, (770), 599 states have internal predecessors, (770), 157 states have call successors, (157), 52 states have call predecessors, (157), 50 states have return successors, (151), 146 states have call predecessors, (151), 151 states have call successors, (151) [2024-12-02 08:18:30,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 08:18:30,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:30,660 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 08:18:30,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:30,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:30,664 INFO L85 PathProgramCache]: Analyzing trace with hash 977399577, now seen corresponding path program 1 times [2024-12-02 08:18:30,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:30,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314621883] [2024-12-02 08:18:30,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:30,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:32,632 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:18:32,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:32,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314621883] [2024-12-02 08:18:32,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314621883] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:18:32,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:18:32,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:18:32,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35802050] [2024-12-02 08:18:32,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:18:32,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:18:32,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:32,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:18:32,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:18:32,666 INFO L87 Difference]: Start difference. First operand has 782 states, 573 states have (on average 1.343804537521815) internal successors, (770), 599 states have internal predecessors, (770), 157 states have call successors, (157), 52 states have call predecessors, (157), 50 states have return successors, (151), 146 states have call predecessors, (151), 151 states have call successors, (151) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:18:36,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:18:36,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:18:36,960 INFO L93 Difference]: Finished difference Result 2302 states and 3241 transitions. [2024-12-02 08:18:36,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:18:36,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-12-02 08:18:36,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:18:36,979 INFO L225 Difference]: With dead ends: 2302 [2024-12-02 08:18:36,979 INFO L226 Difference]: Without dead ends: 1501 [2024-12-02 08:18:36,987 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 [2024-12-02 08:18:36,990 INFO L435 NwaCegarLoop]: 1064 mSDtfsCounter, 1010 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:18:36,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 2101 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 08:18:37,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2024-12-02 08:18:37,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1501. [2024-12-02 08:18:37,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 1109 states have (on average 1.3047790802524797) internal successors, (1447), 1141 states have internal predecessors, (1447), 293 states have call successors, (293), 99 states have call predecessors, (293), 98 states have return successors, (288), 278 states have call predecessors, (288), 288 states have call successors, (288) [2024-12-02 08:18:37,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2028 transitions. [2024-12-02 08:18:37,138 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2028 transitions. Word has length 28 [2024-12-02 08:18:37,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:37,139 INFO L471 AbstractCegarLoop]: Abstraction has 1501 states and 2028 transitions. [2024-12-02 08:18:37,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 08:18:37,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2028 transitions. [2024-12-02 08:18:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-02 08:18:37,142 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:37,142 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 08:18:37,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:18:37,142 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:37,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:37,143 INFO L85 PathProgramCache]: Analyzing trace with hash -74758215, now seen corresponding path program 1 times [2024-12-02 08:18:37,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:37,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733137767] [2024-12-02 08:18:37,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:37,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:39,240 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 08:18:39,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:39,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733137767] [2024-12-02 08:18:39,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733137767] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:18:39,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:18:39,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:18:39,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385382021] [2024-12-02 08:18:39,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:18:39,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:18:39,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:39,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:18:39,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:18:39,244 INFO L87 Difference]: Start difference. First operand 1501 states and 2028 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 08:18:39,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:18:39,491 INFO L93 Difference]: Finished difference Result 4488 states and 6169 transitions. [2024-12-02 08:18:39,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:18:39,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-12-02 08:18:39,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:18:39,509 INFO L225 Difference]: With dead ends: 4488 [2024-12-02 08:18:39,509 INFO L226 Difference]: Without dead ends: 2994 [2024-12-02 08:18:39,513 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 [2024-12-02 08:18:39,514 INFO L435 NwaCegarLoop]: 1571 mSDtfsCounter, 1024 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:18:39,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 2584 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:18:39,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2024-12-02 08:18:39,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 2984. [2024-12-02 08:18:39,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2984 states, 2208 states have (on average 1.3034420289855073) internal successors, (2878), 2268 states have internal predecessors, (2878), 579 states have call successors, (579), 197 states have call predecessors, (579), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-12-02 08:18:39,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2984 states to 2984 states and 4075 transitions. [2024-12-02 08:18:39,627 INFO L78 Accepts]: Start accepts. Automaton has 2984 states and 4075 transitions. Word has length 38 [2024-12-02 08:18:39,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:39,627 INFO L471 AbstractCegarLoop]: Abstraction has 2984 states and 4075 transitions. [2024-12-02 08:18:39,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 08:18:39,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2984 states and 4075 transitions. [2024-12-02 08:18:39,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-02 08:18:39,630 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:39,630 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 08:18:39,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:18:39,630 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:39,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:39,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1977134535, now seen corresponding path program 1 times [2024-12-02 08:18:39,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:39,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299198418] [2024-12-02 08:18:39,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:39,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 08:18:41,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:41,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299198418] [2024-12-02 08:18:41,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299198418] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:18:41,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:18:41,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:18:41,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042213884] [2024-12-02 08:18:41,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:18:41,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:18:41,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:41,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:18:41,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:18:41,313 INFO L87 Difference]: Start difference. First operand 2984 states and 4075 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 08:18:41,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:18:41,391 INFO L93 Difference]: Finished difference Result 2986 states and 4076 transitions. [2024-12-02 08:18:41,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:18:41,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-12-02 08:18:41,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:18:41,404 INFO L225 Difference]: With dead ends: 2986 [2024-12-02 08:18:41,404 INFO L226 Difference]: Without dead ends: 2983 [2024-12-02 08:18:41,406 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 [2024-12-02 08:18:41,407 INFO L435 NwaCegarLoop]: 1033 mSDtfsCounter, 1010 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:18:41,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 1033 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:18:41,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2024-12-02 08:18:41,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2983. [2024-12-02 08:18:41,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2208 states have (on average 1.3029891304347827) internal successors, (2877), 2267 states have internal predecessors, (2877), 578 states have call successors, (578), 197 states have call predecessors, (578), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-12-02 08:18:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 4073 transitions. [2024-12-02 08:18:41,519 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 4073 transitions. Word has length 39 [2024-12-02 08:18:41,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:41,519 INFO L471 AbstractCegarLoop]: Abstraction has 2983 states and 4073 transitions. [2024-12-02 08:18:41,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 08:18:41,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 4073 transitions. [2024-12-02 08:18:41,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 08:18:41,521 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:41,521 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 08:18:41,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:18:41,521 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:41,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:41,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1161305212, now seen corresponding path program 1 times [2024-12-02 08:18:41,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:41,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34123143] [2024-12-02 08:18:41,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:41,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:43,132 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 08:18:43,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:43,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34123143] [2024-12-02 08:18:43,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34123143] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:18:43,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:18:43,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:18:43,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276650595] [2024-12-02 08:18:43,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:18:43,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:18:43,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:43,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:18:43,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:18:43,134 INFO L87 Difference]: Start difference. First operand 2983 states and 4073 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 08:18:43,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:18:43,306 INFO L93 Difference]: Finished difference Result 2985 states and 4074 transitions. [2024-12-02 08:18:43,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:18:43,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-12-02 08:18:43,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:18:43,328 INFO L225 Difference]: With dead ends: 2985 [2024-12-02 08:18:43,328 INFO L226 Difference]: Without dead ends: 2982 [2024-12-02 08:18:43,330 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 [2024-12-02 08:18:43,331 INFO L435 NwaCegarLoop]: 1031 mSDtfsCounter, 1007 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:18:43,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 1031 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:18:43,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2024-12-02 08:18:43,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2982. [2024-12-02 08:18:43,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2208 states have (on average 1.3025362318840579) internal successors, (2876), 2266 states have internal predecessors, (2876), 577 states have call successors, (577), 197 states have call predecessors, (577), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-12-02 08:18:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 4071 transitions. [2024-12-02 08:18:43,602 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 4071 transitions. Word has length 40 [2024-12-02 08:18:43,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:43,602 INFO L471 AbstractCegarLoop]: Abstraction has 2982 states and 4071 transitions. [2024-12-02 08:18:43,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 08:18:43,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 4071 transitions. [2024-12-02 08:18:43,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 08:18:43,604 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:43,605 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 08:18:43,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:18:43,605 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:43,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:43,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1640404842, now seen corresponding path program 1 times [2024-12-02 08:18:43,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:43,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745719670] [2024-12-02 08:18:43,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:43,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:45,105 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 08:18:45,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:45,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745719670] [2024-12-02 08:18:45,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745719670] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:18:45,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:18:45,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:18:45,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647659565] [2024-12-02 08:18:45,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:18:45,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:18:45,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:45,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:18:45,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:18:45,107 INFO L87 Difference]: Start difference. First operand 2982 states and 4071 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 08:18:45,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:18:45,211 INFO L93 Difference]: Finished difference Result 2984 states and 4072 transitions. [2024-12-02 08:18:45,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:18:45,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2024-12-02 08:18:45,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:18:45,221 INFO L225 Difference]: With dead ends: 2984 [2024-12-02 08:18:45,221 INFO L226 Difference]: Without dead ends: 2981 [2024-12-02 08:18:45,222 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 [2024-12-02 08:18:45,223 INFO L435 NwaCegarLoop]: 1029 mSDtfsCounter, 1004 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:18:45,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 1029 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:18:45,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2024-12-02 08:18:45,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2981. [2024-12-02 08:18:45,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2208 states have (on average 1.3020833333333333) internal successors, (2875), 2265 states have internal predecessors, (2875), 576 states have call successors, (576), 197 states have call predecessors, (576), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-12-02 08:18:45,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 4069 transitions. [2024-12-02 08:18:45,331 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 4069 transitions. Word has length 41 [2024-12-02 08:18:45,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:45,332 INFO L471 AbstractCegarLoop]: Abstraction has 2981 states and 4069 transitions. [2024-12-02 08:18:45,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 08:18:45,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 4069 transitions. [2024-12-02 08:18:45,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-02 08:18:45,333 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:45,333 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 08:18:45,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:18:45,333 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:45,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:45,334 INFO L85 PathProgramCache]: Analyzing trace with hash -687370945, now seen corresponding path program 1 times [2024-12-02 08:18:45,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:45,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638522582] [2024-12-02 08:18:45,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:45,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:46,564 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 08:18:46,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:46,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638522582] [2024-12-02 08:18:46,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638522582] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:18:46,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:18:46,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:18:46,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556464281] [2024-12-02 08:18:46,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:18:46,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:18:46,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:46,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:18:46,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:18:46,565 INFO L87 Difference]: Start difference. First operand 2981 states and 4069 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 08:18:46,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:18:46,691 INFO L93 Difference]: Finished difference Result 2983 states and 4070 transitions. [2024-12-02 08:18:46,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:18:46,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-12-02 08:18:46,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:18:46,704 INFO L225 Difference]: With dead ends: 2983 [2024-12-02 08:18:46,704 INFO L226 Difference]: Without dead ends: 2971 [2024-12-02 08:18:46,705 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 [2024-12-02 08:18:46,706 INFO L435 NwaCegarLoop]: 1028 mSDtfsCounter, 1001 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 1028 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 [2024-12-02 08:18:46,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:18:46,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2024-12-02 08:18:46,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 2971. [2024-12-02 08:18:46,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2971 states, 2199 states have (on average 1.3015006821282402) internal successors, (2862), 2255 states have internal predecessors, (2862), 575 states have call successors, (575), 197 states have call predecessors, (575), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-12-02 08:18:46,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2971 states to 2971 states and 4055 transitions. [2024-12-02 08:18:46,903 INFO L78 Accepts]: Start accepts. Automaton has 2971 states and 4055 transitions. Word has length 42 [2024-12-02 08:18:46,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:46,904 INFO L471 AbstractCegarLoop]: Abstraction has 2971 states and 4055 transitions. [2024-12-02 08:18:46,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 08:18:46,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2971 states and 4055 transitions. [2024-12-02 08:18:46,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 08:18:46,911 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:46,911 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 08:18:46,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:18:46,911 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:46,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:46,912 INFO L85 PathProgramCache]: Analyzing trace with hash 219489901, now seen corresponding path program 1 times [2024-12-02 08:18:46,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:46,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899442067] [2024-12-02 08:18:46,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:46,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 08:18:48,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:48,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899442067] [2024-12-02 08:18:48,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899442067] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:18:48,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:18:48,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:18:48,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145950433] [2024-12-02 08:18:48,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:18:48,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:18:48,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:48,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:18:48,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:18:48,310 INFO L87 Difference]: Start difference. First operand 2971 states and 4055 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 08:18:48,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:18:48,649 INFO L93 Difference]: Finished difference Result 6764 states and 9132 transitions. [2024-12-02 08:18:48,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:18:48,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 90 [2024-12-02 08:18:48,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:18:48,671 INFO L225 Difference]: With dead ends: 6764 [2024-12-02 08:18:48,671 INFO L226 Difference]: Without dead ends: 3800 [2024-12-02 08:18:48,682 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 [2024-12-02 08:18:48,683 INFO L435 NwaCegarLoop]: 1074 mSDtfsCounter, 272 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 2071 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 [2024-12-02 08:18:48,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 2071 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:18:48,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3800 states. [2024-12-02 08:18:48,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3800 to 3792. [2024-12-02 08:18:48,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 2804 states have (on average 1.2838801711840229) internal successors, (3600), 2868 states have internal predecessors, (3600), 712 states have call successors, (712), 276 states have call predecessors, (712), 275 states have return successors, (763), 691 states have call predecessors, (763), 711 states have call successors, (763) [2024-12-02 08:18:48,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 5075 transitions. [2024-12-02 08:18:48,925 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 5075 transitions. Word has length 90 [2024-12-02 08:18:48,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:48,925 INFO L471 AbstractCegarLoop]: Abstraction has 3792 states and 5075 transitions. [2024-12-02 08:18:48,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 08:18:48,925 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 5075 transitions. [2024-12-02 08:18:48,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 08:18:48,930 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:48,931 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2024-12-02 08:18:48,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:18:48,931 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:48,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:48,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1370410976, now seen corresponding path program 1 times [2024-12-02 08:18:48,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:48,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103148810] [2024-12-02 08:18:48,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:48,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:50,260 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 08:18:50,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:50,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103148810] [2024-12-02 08:18:50,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103148810] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:18:50,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:18:50,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:18:50,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369242370] [2024-12-02 08:18:50,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:18:50,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:18:50,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:50,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:18:50,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:18:50,263 INFO L87 Difference]: Start difference. First operand 3792 states and 5075 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 08:18:54,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:18:54,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:18:54,566 INFO L93 Difference]: Finished difference Result 8440 states and 11244 transitions. [2024-12-02 08:18:54,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:18:54,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 106 [2024-12-02 08:18:54,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:18:54,586 INFO L225 Difference]: With dead ends: 8440 [2024-12-02 08:18:54,586 INFO L226 Difference]: Without dead ends: 4662 [2024-12-02 08:18:54,595 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 [2024-12-02 08:18:54,596 INFO L435 NwaCegarLoop]: 1285 mSDtfsCounter, 280 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:18:54,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 2283 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 08:18:54,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4662 states. [2024-12-02 08:18:54,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4662 to 4654. [2024-12-02 08:18:54,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4654 states, 3452 states have (on average 1.2746234067207416) internal successors, (4400), 3524 states have internal predecessors, (4400), 848 states have call successors, (848), 354 states have call predecessors, (848), 353 states have return successors, (907), 827 states have call predecessors, (907), 847 states have call successors, (907) [2024-12-02 08:18:54,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4654 states to 4654 states and 6155 transitions. [2024-12-02 08:18:54,793 INFO L78 Accepts]: Start accepts. Automaton has 4654 states and 6155 transitions. Word has length 106 [2024-12-02 08:18:54,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:54,793 INFO L471 AbstractCegarLoop]: Abstraction has 4654 states and 6155 transitions. [2024-12-02 08:18:54,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 08:18:54,793 INFO L276 IsEmpty]: Start isEmpty. Operand 4654 states and 6155 transitions. [2024-12-02 08:18:54,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 08:18:54,800 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:54,800 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2024-12-02 08:18:54,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:18:54,801 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:54,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:54,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1193550718, now seen corresponding path program 1 times [2024-12-02 08:18:54,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:54,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482197417] [2024-12-02 08:18:54,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:54,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:56,282 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 08:18:56,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:56,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482197417] [2024-12-02 08:18:56,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482197417] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:18:56,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:18:56,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:18:56,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057069865] [2024-12-02 08:18:56,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:18:56,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:18:56,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:56,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:18:56,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:18:56,284 INFO L87 Difference]: Start difference. First operand 4654 states and 6155 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 08:19:00,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:19:00,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:19:00,623 INFO L93 Difference]: Finished difference Result 11336 states and 14962 transitions. [2024-12-02 08:19:00,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:19:00,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 118 [2024-12-02 08:19:00,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:19:00,653 INFO L225 Difference]: With dead ends: 11336 [2024-12-02 08:19:00,653 INFO L226 Difference]: Without dead ends: 6696 [2024-12-02 08:19:00,664 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 [2024-12-02 08:19:00,664 INFO L435 NwaCegarLoop]: 1266 mSDtfsCounter, 812 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:19:00,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 2121 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 08:19:00,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6696 states. [2024-12-02 08:19:01,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6696 to 6688. [2024-12-02 08:19:01,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6688 states, 5000 states have (on average 1.2808) internal successors, (6404), 5120 states have internal predecessors, (6404), 1152 states have call successors, (1152), 536 states have call predecessors, (1152), 535 states have return successors, (1237), 1115 states have call predecessors, (1237), 1151 states have call successors, (1237) [2024-12-02 08:19:01,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6688 states to 6688 states and 8793 transitions. [2024-12-02 08:19:01,059 INFO L78 Accepts]: Start accepts. Automaton has 6688 states and 8793 transitions. Word has length 118 [2024-12-02 08:19:01,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:19:01,060 INFO L471 AbstractCegarLoop]: Abstraction has 6688 states and 8793 transitions. [2024-12-02 08:19:01,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 08:19:01,061 INFO L276 IsEmpty]: Start isEmpty. Operand 6688 states and 8793 transitions. [2024-12-02 08:19:01,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 08:19:01,066 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:19:01,066 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-12-02 08:19:01,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:19:01,067 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:19:01,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:19:01,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1686531040, now seen corresponding path program 1 times [2024-12-02 08:19:01,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:19:01,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362105349] [2024-12-02 08:19:01,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:19:01,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:19:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:19:02,579 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 08:19:02,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:19:02,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362105349] [2024-12-02 08:19:02,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362105349] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:19:02,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:19:02,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:19:02,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222136870] [2024-12-02 08:19:02,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:19:02,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:19:02,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:19:02,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:19:02,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:19:02,581 INFO L87 Difference]: Start difference. First operand 6688 states and 8793 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 08:19:03,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:19:03,236 INFO L93 Difference]: Finished difference Result 17752 states and 23435 transitions. [2024-12-02 08:19:03,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:19:03,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2024-12-02 08:19:03,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:19:03,297 INFO L225 Difference]: With dead ends: 17752 [2024-12-02 08:19:03,297 INFO L226 Difference]: Without dead ends: 11078 [2024-12-02 08:19:03,319 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 [2024-12-02 08:19:03,320 INFO L435 NwaCegarLoop]: 1267 mSDtfsCounter, 883 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:19:03,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 2270 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:19:03,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11078 states. [2024-12-02 08:19:03,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11078 to 11056. [2024-12-02 08:19:03,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11056 states, 8323 states have (on average 1.2955665024630543) internal successors, (10783), 8531 states have internal predecessors, (10783), 1848 states have call successors, (1848), 885 states have call predecessors, (1848), 884 states have return successors, (1991), 1775 states have call predecessors, (1991), 1847 states have call successors, (1991) [2024-12-02 08:19:03,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11056 states to 11056 states and 14622 transitions. [2024-12-02 08:19:03,993 INFO L78 Accepts]: Start accepts. Automaton has 11056 states and 14622 transitions. Word has length 123 [2024-12-02 08:19:03,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:19:03,994 INFO L471 AbstractCegarLoop]: Abstraction has 11056 states and 14622 transitions. [2024-12-02 08:19:03,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 08:19:03,994 INFO L276 IsEmpty]: Start isEmpty. Operand 11056 states and 14622 transitions. [2024-12-02 08:19:04,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 08:19:04,002 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:19:04,002 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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] [2024-12-02 08:19:04,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:19:04,003 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:19:04,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:19:04,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1982233267, now seen corresponding path program 1 times [2024-12-02 08:19:04,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:19:04,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510467279] [2024-12-02 08:19:04,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:19:04,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:19:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:19:05,756 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 08:19:05,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:19:05,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510467279] [2024-12-02 08:19:05,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510467279] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:19:05,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:19:05,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:19:05,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429959996] [2024-12-02 08:19:05,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:19:05,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:19:05,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:19:05,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:19:05,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:19:05,758 INFO L87 Difference]: Start difference. First operand 11056 states and 14622 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:19:06,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:19:06,263 INFO L93 Difference]: Finished difference Result 22126 states and 29272 transitions. [2024-12-02 08:19:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:19:06,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2024-12-02 08:19:06,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:19:06,320 INFO L225 Difference]: With dead ends: 22126 [2024-12-02 08:19:06,320 INFO L226 Difference]: Without dead ends: 11088 [2024-12-02 08:19:06,351 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 [2024-12-02 08:19:06,352 INFO L435 NwaCegarLoop]: 1022 mSDtfsCounter, 1 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2040 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 [2024-12-02 08:19:06,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2040 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:19:06,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11088 states. [2024-12-02 08:19:06,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11088 to 11072. [2024-12-02 08:19:06,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11072 states, 8339 states have (on average 1.2949994004077228) internal successors, (10799), 8547 states have internal predecessors, (10799), 1848 states have call successors, (1848), 885 states have call predecessors, (1848), 884 states have return successors, (1991), 1775 states have call predecessors, (1991), 1847 states have call successors, (1991) [2024-12-02 08:19:06,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11072 states to 11072 states and 14638 transitions. [2024-12-02 08:19:06,856 INFO L78 Accepts]: Start accepts. Automaton has 11072 states and 14638 transitions. Word has length 139 [2024-12-02 08:19:06,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:19:06,856 INFO L471 AbstractCegarLoop]: Abstraction has 11072 states and 14638 transitions. [2024-12-02 08:19:06,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:19:06,856 INFO L276 IsEmpty]: Start isEmpty. Operand 11072 states and 14638 transitions. [2024-12-02 08:19:06,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 08:19:06,862 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:19:06,862 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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] [2024-12-02 08:19:06,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:19:06,863 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:19:06,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:19:06,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1538999567, now seen corresponding path program 1 times [2024-12-02 08:19:06,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:19:06,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023433222] [2024-12-02 08:19:06,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:19:06,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:19:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:19:08,936 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 08:19:08,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:19:08,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023433222] [2024-12-02 08:19:08,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023433222] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:19:08,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328292746] [2024-12-02 08:19:08,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:19:08,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:19:08,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:19:08,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:19:08,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:19:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:19:11,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 2294 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:19:11,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:19:11,155 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-02 08:19:11,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:19:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 08:19:11,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328292746] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:19:11,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:19:11,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-02 08:19:11,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027469259] [2024-12-02 08:19:11,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:19:11,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:19:11,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:19:11,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:19:11,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:19:11,552 INFO L87 Difference]: Start difference. First operand 11072 states and 14638 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 08:19:12,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:19:12,034 INFO L93 Difference]: Finished difference Result 22222 states and 29400 transitions. [2024-12-02 08:19:12,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:19:12,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2024-12-02 08:19:12,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:19:12,087 INFO L225 Difference]: With dead ends: 22222 [2024-12-02 08:19:12,087 INFO L226 Difference]: Without dead ends: 11168 [2024-12-02 08:19:12,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:19:12,119 INFO L435 NwaCegarLoop]: 1022 mSDtfsCounter, 2 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:19:12,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3058 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:19:12,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11168 states. [2024-12-02 08:19:12,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11168 to 11168. [2024-12-02 08:19:12,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11168 states, 8435 states have (on average 1.2916419679905158) internal successors, (10895), 8643 states have internal predecessors, (10895), 1848 states have call successors, (1848), 885 states have call predecessors, (1848), 884 states have return successors, (1991), 1775 states have call predecessors, (1991), 1847 states have call successors, (1991) [2024-12-02 08:19:12,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11168 states to 11168 states and 14734 transitions. [2024-12-02 08:19:12,733 INFO L78 Accepts]: Start accepts. Automaton has 11168 states and 14734 transitions. Word has length 141 [2024-12-02 08:19:12,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:19:12,733 INFO L471 AbstractCegarLoop]: Abstraction has 11168 states and 14734 transitions. [2024-12-02 08:19:12,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 08:19:12,733 INFO L276 IsEmpty]: Start isEmpty. Operand 11168 states and 14734 transitions. [2024-12-02 08:19:12,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:19:12,744 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:19:12,745 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-12-02 08:19:12,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:19:12,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 08:19:12,945 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:19:12,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:19:12,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1653193251, now seen corresponding path program 2 times [2024-12-02 08:19:12,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:19:12,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653688614] [2024-12-02 08:19:12,946 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:19:12,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:19:14,452 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 08:19:14,452 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:19:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-12-02 08:19:14,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:19:14,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653688614] [2024-12-02 08:19:14,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653688614] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:19:14,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45518437] [2024-12-02 08:19:14,752 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:19:14,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:19:14,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:19:14,754 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:19:14,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd63cb8-858b-4748-b967-15f433251e67/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process