./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.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_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/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_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/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_b44d50c3-8111-4c5b-a16b-799c82bc3e69/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 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:05:10,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:05:10,551 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 08:05:10,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:05:10,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:05:10,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:05:10,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:05:10,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:05:10,580 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:05:10,581 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:05:10,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:05:10,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:05:10,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:05:10,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:05:10,581 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:05:10,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:05:10,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:05:10,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:05:10,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:05:10,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:05:10,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:05:10,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:05:10,582 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:05:10,582 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:05:10,582 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:05:10,582 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:05:10,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:05:10,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:05:10,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:05:10,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:05:10,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:05:10,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:05:10,583 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:05:10,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:05:10,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:05:10,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:05:10,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:05:10,583 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:05:10,583 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:05:10,584 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:05:10,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:05:10,584 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:05:10,584 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:05:10,584 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:05:10,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:05:10,584 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_b44d50c3-8111-4c5b-a16b-799c82bc3e69/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 -> 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad [2024-12-02 08:05:10,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:05:10,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:05:10,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:05:10,834 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:05:10,834 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:05:10,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2024-12-02 08:05:13,402 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/data/3a40ec26a/13979b5ca6ba422f8cb5acc84b8dbd89/FLAG1c1e2aabe [2024-12-02 08:05:13,875 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:05:13,875 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2024-12-02 08:05:13,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/data/3a40ec26a/13979b5ca6ba422f8cb5acc84b8dbd89/FLAG1c1e2aabe [2024-12-02 08:05:14,009 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/data/3a40ec26a/13979b5ca6ba422f8cb5acc84b8dbd89 [2024-12-02 08:05:14,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:05:14,013 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:05:14,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:05:14,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:05:14,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:05:14,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:05:14" (1/1) ... [2024-12-02 08:05:14,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c69a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:14, skipping insertion in model container [2024-12-02 08:05:14,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:05:14" (1/1) ... [2024-12-02 08:05:14,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:05:15,133 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_b44d50c3-8111-4c5b-a16b-799c82bc3e69/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i[217361,217374] [2024-12-02 08:05:15,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:05:15,246 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:05:15,317 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"); [4245] [2024-12-02 08:05:15,319 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)); [4252] [2024-12-02 08:05:15,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [4266] [2024-12-02 08:05:15,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("661:\n\tcall __sw_hweight32\n662:\n.skip -(((6651f-6641f)-(662b-661b)) > 0) * ((6651f-6641f)-(662b-661b)),0x90\n663:\n.pushsection .altinstructions,\"a\"\n .long 661b - .\n .long 6641f - .\n .word ( 4*32+23)\n .byte 663b-661b\n .byte 6651f-6641f\n .byte 663b-662b\n.popsection\n.pushsection .altinstr_replacement, \"ax\"\n6641:\n\t.byte 0xf3,0x40,0x0f,0xb8,0xc7\n6651:\n\t.popsection": "=a" (res): "D" (w)); [4275] [2024-12-02 08:05:15,409 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-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/988/dscv_tempdir/dscv/ri/32_7a/drivers/md/dm-raid.c"), "i" (791), "i" (12UL)); [5389-5390] [2024-12-02 08:05:15,493 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_b44d50c3-8111-4c5b-a16b-799c82bc3e69/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i[217361,217374] [2024-12-02 08:05:15,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:05:15,570 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:05:15,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15 WrapperNode [2024-12-02 08:05:15,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:05:15,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:05:15,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:05:15,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:05:15,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:15,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:15,746 INFO L138 Inliner]: procedures = 222, calls = 1690, calls flagged for inlining = 84, calls inlined = 76, statements flattened = 4895 [2024-12-02 08:05:15,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:05:15,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:05:15,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:05:15,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:05:15,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:15,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:15,775 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:16,160 INFO L175 MemorySlicer]: Split 982 memory accesses to 20 slices as follows [2, 2, 2, 6, 33, 36, 1, 1, 55, 31, 5, 689, 2, 5, 48, 16, 5, 32, 4, 7]. 70 percent of accesses are in the largest equivalence class. The 283 initializations are split as follows [2, 2, 2, 6, 0, 0, 0, 0, 55, 0, 5, 126, 0, 5, 48, 16, 5, 0, 4, 7]. The 248 writes are split as follows [0, 0, 0, 0, 30, 3, 0, 0, 0, 14, 0, 199, 1, 0, 0, 0, 0, 1, 0, 0]. [2024-12-02 08:05:16,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:16,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:16,238 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:16,243 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:16,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:16,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:16,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:16,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:05:16,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:05:16,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:05:16,306 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:05:16,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (1/1) ... [2024-12-02 08:05:16,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:05:16,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:05:16,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:05:16,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:05:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2024-12-02 08:05:16,352 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2024-12-02 08:05:16,353 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 08:05:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 08:05:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 08:05:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 08:05:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 08:05:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 08:05:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 08:05:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 08:05:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-12-02 08:05:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-12-02 08:05:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 08:05:16,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 08:05:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 08:05:16,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 08:05:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2024-12-02 08:05:16,354 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2024-12-02 08:05:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_format [2024-12-02 08:05:16,355 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_format [2024-12-02 08:05:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 08:05:16,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 08:05:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure raid_io_hints [2024-12-02 08:05:16,355 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_io_hints [2024-12-02 08:05:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure raid_message [2024-12-02 08:05:16,355 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_message [2024-12-02 08:05:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 08:05:16,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 08:05:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-12-02 08:05:16,355 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-12-02 08:05:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_copies [2024-12-02 08:05:16,355 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_copies [2024-12-02 08:05:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 08:05:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 08:05:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#16 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#17 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#18 [2024-12-02 08:05:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#19 [2024-12-02 08:05:16,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2024-12-02 08:05:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#16 [2024-12-02 08:05:16,358 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#17 [2024-12-02 08:05:16,358 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#18 [2024-12-02 08:05:16,358 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#19 [2024-12-02 08:05:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:05:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:05:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure context_free [2024-12-02 08:05:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure context_free [2024-12-02 08:05:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-12-02 08:05:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-12-02 08:05:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2024-12-02 08:05:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure super_validate [2024-12-02 08:05:16,360 INFO L138 BoogieDeclarations]: Found implementation of procedure super_validate [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure do_table_event [2024-12-02 08:05:16,360 INFO L138 BoogieDeclarations]: Found implementation of procedure do_table_event [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-12-02 08:05:16,360 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 08:05:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure sync_page_io [2024-12-02 08:05:16,361 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_page_io [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-12-02 08:05:16,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure to_sector [2024-12-02 08:05:16,361 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sector [2024-12-02 08:05:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 08:05:16,362 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure raid_iterate_devices [2024-12-02 08:05:16,362 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_iterate_devices [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2024-12-02 08:05:16,362 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 08:05:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2024-12-02 08:05:16,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 08:05:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2024-12-02 08:05:16,364 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-12-02 08:05:16,364 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure super_sync [2024-12-02 08:05:16,364 INFO L138 BoogieDeclarations]: Found implementation of procedure super_sync [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:05:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2024-12-02 08:05:16,365 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2024-12-02 08:05:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2024-12-02 08:05:16,366 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-12-02 08:05:16,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure raid_merge [2024-12-02 08:05:16,366 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_merge [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-12-02 08:05:16,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure raid_map [2024-12-02 08:05:16,366 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_map [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 08:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2024-12-02 08:05:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2024-12-02 08:05:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop [2024-12-02 08:05:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure raid_status [2024-12-02 08:05:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_status [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2024-12-02 08:05:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 08:05:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-12-02 08:05:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-12-02 08:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure raid_dtr [2024-12-02 08:05:16,368 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_dtr [2024-12-02 08:05:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2024-12-02 08:05:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2024-12-02 08:05:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:05:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:05:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-12-02 08:05:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-12-02 08:05:16,945 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:05:16,947 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:05:16,978 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 08:05:25,561 INFO L? ?]: Removed 1582 outVars from TransFormulas that were not future-live. [2024-12-02 08:05:25,561 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:05:25,594 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:05:25,595 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 08:05:25,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:05:25 BoogieIcfgContainer [2024-12-02 08:05:25,595 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:05:25,598 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:05:25,598 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:05:25,602 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:05:25,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:05:14" (1/3) ... [2024-12-02 08:05:25,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c2543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:05:25, skipping insertion in model container [2024-12-02 08:05:25,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:05:15" (2/3) ... [2024-12-02 08:05:25,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c2543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:05:25, skipping insertion in model container [2024-12-02 08:05:25,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:05:25" (3/3) ... [2024-12-02 08:05:25,605 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2024-12-02 08:05:25,619 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:05:25,622 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i that has 66 procedures, 1464 locations, 1 initial locations, 20 loop locations, and 1 error locations. [2024-12-02 08:05:25,709 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:05:25,721 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;@3aff69a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:05:25,721 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:05:25,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 1391 states, 1076 states have (on average 1.4340148698884758) internal successors, (1543), 1097 states have internal predecessors, (1543), 267 states have call successors, (267), 47 states have call predecessors, (267), 46 states have return successors, (263), 259 states have call predecessors, (263), 263 states have call successors, (263) [2024-12-02 08:05:25,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-12-02 08:05:25,743 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:25,744 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:25,744 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:25,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:25,749 INFO L85 PathProgramCache]: Analyzing trace with hash -242002029, now seen corresponding path program 1 times [2024-12-02 08:05:25,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:25,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174558118] [2024-12-02 08:05:25,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:25,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:27,254 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2024-12-02 08:05:27,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:27,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174558118] [2024-12-02 08:05:27,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174558118] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:05:27,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669176180] [2024-12-02 08:05:27,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:27,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:05:27,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:05:27,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:05:27,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:05:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:28,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 3230 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:05:28,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:05:28,956 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2024-12-02 08:05:28,957 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:05:28,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669176180] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:28,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:05:28,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:05:28,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740549736] [2024-12-02 08:05:28,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:28,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:05:28,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:28,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:05:28,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:05:28,988 INFO L87 Difference]: Start difference. First operand has 1391 states, 1076 states have (on average 1.4340148698884758) internal successors, (1543), 1097 states have internal predecessors, (1543), 267 states have call successors, (267), 47 states have call predecessors, (267), 46 states have return successors, (263), 259 states have call predecessors, (263), 263 states have call successors, (263) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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 08:05:29,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:29,123 INFO L93 Difference]: Finished difference Result 2777 states and 4158 transitions. [2024-12-02 08:05:29,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:05:29,125 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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 221 [2024-12-02 08:05:29,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:29,147 INFO L225 Difference]: With dead ends: 2777 [2024-12-02 08:05:29,147 INFO L226 Difference]: Without dead ends: 1379 [2024-12-02 08:05:29,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:05:29,161 INFO L435 NwaCegarLoop]: 2050 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2050 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 08:05:29,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:29,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2024-12-02 08:05:29,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1379. [2024-12-02 08:05:29,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 1070 states have (on average 1.4149532710280375) internal successors, (1514), 1085 states have internal predecessors, (1514), 263 states have call successors, (263), 46 states have call predecessors, (263), 45 states have return successors, (258), 254 states have call predecessors, (258), 258 states have call successors, (258) [2024-12-02 08:05:29,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2035 transitions. [2024-12-02 08:05:29,300 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2035 transitions. Word has length 221 [2024-12-02 08:05:29,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:29,301 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 2035 transitions. [2024-12-02 08:05:29,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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 08:05:29,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2035 transitions. [2024-12-02 08:05:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-12-02 08:05:29,306 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:29,307 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:29,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:05:29,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 08:05:29,507 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:29,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:29,508 INFO L85 PathProgramCache]: Analyzing trace with hash -42890877, now seen corresponding path program 1 times [2024-12-02 08:05:29,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:29,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900212437] [2024-12-02 08:05:29,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:29,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:30,713 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2024-12-02 08:05:30,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:30,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900212437] [2024-12-02 08:05:30,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900212437] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:30,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:30,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:05:30,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5959870] [2024-12-02 08:05:30,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:30,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:05:30,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:30,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:05:30,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:30,716 INFO L87 Difference]: Start difference. First operand 1379 states and 2035 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:05:34,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:05:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:34,985 INFO L93 Difference]: Finished difference Result 4022 states and 5954 transitions. [2024-12-02 08:05:34,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:05:34,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 221 [2024-12-02 08:05:34,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:35,003 INFO L225 Difference]: With dead ends: 4022 [2024-12-02 08:05:35,003 INFO L226 Difference]: Without dead ends: 2686 [2024-12-02 08:05:35,010 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 08:05:35,011 INFO L435 NwaCegarLoop]: 2036 mSDtfsCounter, 1939 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1939 SdHoareTripleChecker+Valid, 4054 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 08:05:35,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1939 Valid, 4054 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 08:05:35,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2024-12-02 08:05:35,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2683. [2024-12-02 08:05:35,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2683 states, 2095 states have (on average 1.4200477326968974) internal successors, (2975), 2121 states have internal predecessors, (2975), 501 states have call successors, (501), 87 states have call predecessors, (501), 86 states have return successors, (496), 488 states have call predecessors, (496), 496 states have call successors, (496) [2024-12-02 08:05:35,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2683 states to 2683 states and 3972 transitions. [2024-12-02 08:05:35,136 INFO L78 Accepts]: Start accepts. Automaton has 2683 states and 3972 transitions. Word has length 221 [2024-12-02 08:05:35,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:35,137 INFO L471 AbstractCegarLoop]: Abstraction has 2683 states and 3972 transitions. [2024-12-02 08:05:35,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 08:05:35,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2683 states and 3972 transitions. [2024-12-02 08:05:35,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-12-02 08:05:35,141 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:35,141 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:35,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:05:35,142 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:35,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:35,142 INFO L85 PathProgramCache]: Analyzing trace with hash 938516041, now seen corresponding path program 1 times [2024-12-02 08:05:35,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:35,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810367226] [2024-12-02 08:05:35,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:35,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2024-12-02 08:05:36,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:36,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810367226] [2024-12-02 08:05:36,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810367226] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:36,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:36,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:05:36,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706767663] [2024-12-02 08:05:36,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:36,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:05:36,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:36,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:05:36,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:36,418 INFO L87 Difference]: Start difference. First operand 2683 states and 3972 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:05:36,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:36,497 INFO L93 Difference]: Finished difference Result 2685 states and 3973 transitions. [2024-12-02 08:05:36,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:05:36,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 229 [2024-12-02 08:05:36,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:36,514 INFO L225 Difference]: With dead ends: 2685 [2024-12-02 08:05:36,514 INFO L226 Difference]: Without dead ends: 2682 [2024-12-02 08:05:36,516 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 08:05:36,517 INFO L435 NwaCegarLoop]: 2032 mSDtfsCounter, 1985 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 2032 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 08:05:36,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1985 Valid, 2032 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:36,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2024-12-02 08:05:36,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2682. [2024-12-02 08:05:36,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 2095 states have (on average 1.4195704057279237) internal successors, (2974), 2120 states have internal predecessors, (2974), 500 states have call successors, (500), 87 states have call predecessors, (500), 86 states have return successors, (496), 488 states have call predecessors, (496), 496 states have call successors, (496) [2024-12-02 08:05:36,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3970 transitions. [2024-12-02 08:05:36,645 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3970 transitions. Word has length 229 [2024-12-02 08:05:36,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:36,646 INFO L471 AbstractCegarLoop]: Abstraction has 2682 states and 3970 transitions. [2024-12-02 08:05:36,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:05:36,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3970 transitions. [2024-12-02 08:05:36,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-12-02 08:05:36,650 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:36,650 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:36,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:05:36,651 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:36,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:36,651 INFO L85 PathProgramCache]: Analyzing trace with hash -971089771, now seen corresponding path program 1 times [2024-12-02 08:05:36,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:36,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012681440] [2024-12-02 08:05:36,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:36,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:37,831 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2024-12-02 08:05:37,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:37,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012681440] [2024-12-02 08:05:37,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012681440] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:37,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:37,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:05:37,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004249548] [2024-12-02 08:05:37,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:37,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:05:37,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:37,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:05:37,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:37,833 INFO L87 Difference]: Start difference. First operand 2682 states and 3970 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:05:37,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:37,913 INFO L93 Difference]: Finished difference Result 2684 states and 3971 transitions. [2024-12-02 08:05:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:05:37,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 230 [2024-12-02 08:05:37,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:37,931 INFO L225 Difference]: With dead ends: 2684 [2024-12-02 08:05:37,931 INFO L226 Difference]: Without dead ends: 2681 [2024-12-02 08:05:37,933 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 08:05:37,933 INFO L435 NwaCegarLoop]: 2030 mSDtfsCounter, 1982 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1982 SdHoareTripleChecker+Valid, 2030 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 08:05:37,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1982 Valid, 2030 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:37,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2024-12-02 08:05:38,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2681. [2024-12-02 08:05:38,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2095 states have (on average 1.41909307875895) internal successors, (2973), 2119 states have internal predecessors, (2973), 499 states have call successors, (499), 87 states have call predecessors, (499), 86 states have return successors, (496), 488 states have call predecessors, (496), 496 states have call successors, (496) [2024-12-02 08:05:38,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 3968 transitions. [2024-12-02 08:05:38,064 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 3968 transitions. Word has length 230 [2024-12-02 08:05:38,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:38,064 INFO L471 AbstractCegarLoop]: Abstraction has 2681 states and 3968 transitions. [2024-12-02 08:05:38,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:05:38,064 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 3968 transitions. [2024-12-02 08:05:38,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-12-02 08:05:38,068 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:38,068 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:38,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:05:38,069 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:38,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:38,069 INFO L85 PathProgramCache]: Analyzing trace with hash -39322932, now seen corresponding path program 1 times [2024-12-02 08:05:38,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:38,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711537251] [2024-12-02 08:05:38,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:38,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2024-12-02 08:05:38,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:38,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711537251] [2024-12-02 08:05:38,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711537251] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:38,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:38,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:05:38,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837095914] [2024-12-02 08:05:38,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:38,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:05:38,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:38,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:05:38,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:38,914 INFO L87 Difference]: Start difference. First operand 2681 states and 3968 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:05:39,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:39,004 INFO L93 Difference]: Finished difference Result 2683 states and 3969 transitions. [2024-12-02 08:05:39,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:05:39,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 231 [2024-12-02 08:05:39,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:39,015 INFO L225 Difference]: With dead ends: 2683 [2024-12-02 08:05:39,015 INFO L226 Difference]: Without dead ends: 2680 [2024-12-02 08:05:39,017 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 08:05:39,017 INFO L435 NwaCegarLoop]: 2028 mSDtfsCounter, 1979 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 2028 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 08:05:39,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 2028 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:39,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2024-12-02 08:05:39,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2680. [2024-12-02 08:05:39,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 2095 states have (on average 1.4186157517899762) internal successors, (2972), 2118 states have internal predecessors, (2972), 498 states have call successors, (498), 87 states have call predecessors, (498), 86 states have return successors, (496), 488 states have call predecessors, (496), 496 states have call successors, (496) [2024-12-02 08:05:39,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 3966 transitions. [2024-12-02 08:05:39,147 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 3966 transitions. Word has length 231 [2024-12-02 08:05:39,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:39,148 INFO L471 AbstractCegarLoop]: Abstraction has 2680 states and 3966 transitions. [2024-12-02 08:05:39,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:05:39,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 3966 transitions. [2024-12-02 08:05:39,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-12-02 08:05:39,152 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:39,152 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:39,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:05:39,152 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:39,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:39,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1219317128, now seen corresponding path program 1 times [2024-12-02 08:05:39,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:39,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767630776] [2024-12-02 08:05:39,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:39,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:40,163 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2024-12-02 08:05:40,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:40,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767630776] [2024-12-02 08:05:40,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767630776] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:40,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:40,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:05:40,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714921190] [2024-12-02 08:05:40,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:40,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:05:40,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:40,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:05:40,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:40,164 INFO L87 Difference]: Start difference. First operand 2680 states and 3966 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:05:40,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:40,290 INFO L93 Difference]: Finished difference Result 5283 states and 7834 transitions. [2024-12-02 08:05:40,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:05:40,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 232 [2024-12-02 08:05:40,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:40,310 INFO L225 Difference]: With dead ends: 5283 [2024-12-02 08:05:40,310 INFO L226 Difference]: Without dead ends: 5272 [2024-12-02 08:05:40,313 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 08:05:40,314 INFO L435 NwaCegarLoop]: 2030 mSDtfsCounter, 1952 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 3997 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:40,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1952 Valid, 3997 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:40,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2024-12-02 08:05:40,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 5272. [2024-12-02 08:05:40,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5272 states, 4133 states have (on average 1.4219695136704573) internal successors, (5877), 4176 states have internal predecessors, (5877), 972 states have call successors, (972), 169 states have call predecessors, (972), 166 states have return successors, (970), 952 states have call predecessors, (970), 970 states have call successors, (970) [2024-12-02 08:05:40,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 7819 transitions. [2024-12-02 08:05:40,484 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 7819 transitions. Word has length 232 [2024-12-02 08:05:40,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:40,485 INFO L471 AbstractCegarLoop]: Abstraction has 5272 states and 7819 transitions. [2024-12-02 08:05:40,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:05:40,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 7819 transitions. [2024-12-02 08:05:40,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-12-02 08:05:40,498 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:40,498 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:40,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:05:40,498 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:40,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:40,499 INFO L85 PathProgramCache]: Analyzing trace with hash 712715935, now seen corresponding path program 1 times [2024-12-02 08:05:40,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:40,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981102354] [2024-12-02 08:05:40,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:40,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:41,624 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2024-12-02 08:05:41,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:41,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981102354] [2024-12-02 08:05:41,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981102354] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:41,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:41,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:05:41,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573360034] [2024-12-02 08:05:41,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:41,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:05:41,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:41,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:05:41,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:41,627 INFO L87 Difference]: Start difference. First operand 5272 states and 7819 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 08:05:42,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:42,365 INFO L93 Difference]: Finished difference Result 10695 states and 15852 transitions. [2024-12-02 08:05:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:05:42,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 338 [2024-12-02 08:05:42,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:42,424 INFO L225 Difference]: With dead ends: 10695 [2024-12-02 08:05:42,424 INFO L226 Difference]: Without dead ends: 5466 [2024-12-02 08:05:42,444 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 08:05:42,445 INFO L435 NwaCegarLoop]: 2041 mSDtfsCounter, 142 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 3895 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:42,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 3895 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:05:42,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5466 states. [2024-12-02 08:05:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5466 to 5456. [2024-12-02 08:05:42,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 4288 states have (on average 1.421641791044776) internal successors, (6096), 4331 states have internal predecessors, (6096), 992 states have call successors, (992), 178 states have call predecessors, (992), 175 states have return successors, (990), 972 states have call predecessors, (990), 990 states have call successors, (990) [2024-12-02 08:05:42,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 8078 transitions. [2024-12-02 08:05:42,749 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 8078 transitions. Word has length 338 [2024-12-02 08:05:42,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:42,749 INFO L471 AbstractCegarLoop]: Abstraction has 5456 states and 8078 transitions. [2024-12-02 08:05:42,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 08:05:42,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 8078 transitions. [2024-12-02 08:05:42,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-12-02 08:05:42,774 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:42,774 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:42,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:05:42,775 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:42,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:42,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1442154836, now seen corresponding path program 1 times [2024-12-02 08:05:42,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:42,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128340549] [2024-12-02 08:05:42,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:42,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:43,949 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2024-12-02 08:05:43,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:43,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128340549] [2024-12-02 08:05:43,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128340549] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:43,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:43,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:05:43,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510308485] [2024-12-02 08:05:43,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:43,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:05:43,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:43,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:05:43,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:43,952 INFO L87 Difference]: Start difference. First operand 5456 states and 8078 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 08:05:44,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:44,257 INFO L93 Difference]: Finished difference Result 10859 states and 16093 transitions. [2024-12-02 08:05:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:05:44,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 363 [2024-12-02 08:05:44,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:44,287 INFO L225 Difference]: With dead ends: 10859 [2024-12-02 08:05:44,287 INFO L226 Difference]: Without dead ends: 5460 [2024-12-02 08:05:44,302 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 08:05:44,302 INFO L435 NwaCegarLoop]: 2028 mSDtfsCounter, 0 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4050 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 08:05:44,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4050 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:44,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5460 states. [2024-12-02 08:05:44,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5460 to 5460. [2024-12-02 08:05:44,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5460 states, 4292 states have (on average 1.4212488350419386) internal successors, (6100), 4335 states have internal predecessors, (6100), 992 states have call successors, (992), 178 states have call predecessors, (992), 175 states have return successors, (990), 972 states have call predecessors, (990), 990 states have call successors, (990) [2024-12-02 08:05:44,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5460 states to 5460 states and 8082 transitions. [2024-12-02 08:05:44,657 INFO L78 Accepts]: Start accepts. Automaton has 5460 states and 8082 transitions. Word has length 363 [2024-12-02 08:05:44,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:44,658 INFO L471 AbstractCegarLoop]: Abstraction has 5460 states and 8082 transitions. [2024-12-02 08:05:44,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 08:05:44,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5460 states and 8082 transitions. [2024-12-02 08:05:44,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-12-02 08:05:44,677 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:44,677 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:44,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:05:44,678 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:44,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:44,678 INFO L85 PathProgramCache]: Analyzing trace with hash 385423634, now seen corresponding path program 1 times [2024-12-02 08:05:44,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:44,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832269071] [2024-12-02 08:05:44,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:44,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:45,819 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2024-12-02 08:05:45,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:45,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832269071] [2024-12-02 08:05:45,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832269071] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:45,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:45,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:05:45,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770390616] [2024-12-02 08:05:45,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:45,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:05:45,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:45,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:05:45,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:05:45,820 INFO L87 Difference]: Start difference. First operand 5460 states and 8082 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 08:05:46,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:46,080 INFO L93 Difference]: Finished difference Result 10879 states and 16117 transitions. [2024-12-02 08:05:46,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:05:46,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 363 [2024-12-02 08:05:46,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:46,104 INFO L225 Difference]: With dead ends: 10879 [2024-12-02 08:05:46,104 INFO L226 Difference]: Without dead ends: 5476 [2024-12-02 08:05:46,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:05:46,117 INFO L435 NwaCegarLoop]: 2028 mSDtfsCounter, 1 mSDsluCounter, 4014 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6042 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:46,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6042 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:05:46,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2024-12-02 08:05:46,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 5468. [2024-12-02 08:05:46,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5468 states, 4300 states have (on average 1.4204651162790698) internal successors, (6108), 4343 states have internal predecessors, (6108), 992 states have call successors, (992), 178 states have call predecessors, (992), 175 states have return successors, (990), 972 states have call predecessors, (990), 990 states have call successors, (990) [2024-12-02 08:05:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5468 states to 5468 states and 8090 transitions. [2024-12-02 08:05:46,330 INFO L78 Accepts]: Start accepts. Automaton has 5468 states and 8090 transitions. Word has length 363 [2024-12-02 08:05:46,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:46,331 INFO L471 AbstractCegarLoop]: Abstraction has 5468 states and 8090 transitions. [2024-12-02 08:05:46,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 08:05:46,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5468 states and 8090 transitions. [2024-12-02 08:05:46,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-12-02 08:05:46,346 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:46,346 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:46,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:05:46,346 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:46,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:46,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1075439448, now seen corresponding path program 1 times [2024-12-02 08:05:46,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:46,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682847966] [2024-12-02 08:05:46,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:46,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:47,629 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2024-12-02 08:05:47,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:47,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682847966] [2024-12-02 08:05:47,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682847966] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:47,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:47,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:05:47,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347781758] [2024-12-02 08:05:47,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:47,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:05:47,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:47,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:05:47,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:05:47,631 INFO L87 Difference]: Start difference. First operand 5468 states and 8090 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 08:05:47,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:47,834 INFO L93 Difference]: Finished difference Result 10887 states and 16121 transitions. [2024-12-02 08:05:47,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:05:47,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 382 [2024-12-02 08:05:47,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:47,857 INFO L225 Difference]: With dead ends: 10887 [2024-12-02 08:05:47,857 INFO L226 Difference]: Without dead ends: 5476 [2024-12-02 08:05:47,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:05:47,872 INFO L435 NwaCegarLoop]: 2027 mSDtfsCounter, 0 mSDsluCounter, 4045 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6072 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:47,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6072 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:47,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2024-12-02 08:05:48,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 5476. [2024-12-02 08:05:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 4308 states have (on average 1.4196843082636954) internal successors, (6116), 4351 states have internal predecessors, (6116), 992 states have call successors, (992), 178 states have call predecessors, (992), 175 states have return successors, (990), 972 states have call predecessors, (990), 990 states have call successors, (990) [2024-12-02 08:05:48,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 8098 transitions. [2024-12-02 08:05:48,044 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 8098 transitions. Word has length 382 [2024-12-02 08:05:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:48,045 INFO L471 AbstractCegarLoop]: Abstraction has 5476 states and 8098 transitions. [2024-12-02 08:05:48,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 08:05:48,045 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 8098 transitions. [2024-12-02 08:05:48,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-12-02 08:05:48,052 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:48,053 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:48,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:05:48,053 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:48,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:48,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1208475723, now seen corresponding path program 1 times [2024-12-02 08:05:48,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:48,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545387653] [2024-12-02 08:05:48,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:48,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:48,940 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2024-12-02 08:05:48,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:48,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545387653] [2024-12-02 08:05:48,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545387653] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:48,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:48,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:05:48,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965769677] [2024-12-02 08:05:48,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:48,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:05:48,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:48,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:05:48,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:48,942 INFO L87 Difference]: Start difference. First operand 5476 states and 8098 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 08:05:49,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:49,063 INFO L93 Difference]: Finished difference Result 10899 states and 16133 transitions. [2024-12-02 08:05:49,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:05:49,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 388 [2024-12-02 08:05:49,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:49,079 INFO L225 Difference]: With dead ends: 10899 [2024-12-02 08:05:49,079 INFO L226 Difference]: Without dead ends: 5480 [2024-12-02 08:05:49,090 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 08:05:49,090 INFO L435 NwaCegarLoop]: 2028 mSDtfsCounter, 0 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4050 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 08:05:49,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4050 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:49,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5480 states. [2024-12-02 08:05:49,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5480 to 5480. [2024-12-02 08:05:49,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 4312 states have (on average 1.4192949907235621) internal successors, (6120), 4355 states have internal predecessors, (6120), 992 states have call successors, (992), 178 states have call predecessors, (992), 175 states have return successors, (990), 972 states have call predecessors, (990), 990 states have call successors, (990) [2024-12-02 08:05:49,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 8102 transitions. [2024-12-02 08:05:49,249 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 8102 transitions. Word has length 388 [2024-12-02 08:05:49,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:49,250 INFO L471 AbstractCegarLoop]: Abstraction has 5480 states and 8102 transitions. [2024-12-02 08:05:49,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 08:05:49,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 8102 transitions. [2024-12-02 08:05:49,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-12-02 08:05:49,257 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:49,257 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:49,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:05:49,257 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:49,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:49,258 INFO L85 PathProgramCache]: Analyzing trace with hash 699982067, now seen corresponding path program 1 times [2024-12-02 08:05:49,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:49,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014734726] [2024-12-02 08:05:49,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:49,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2024-12-02 08:05:50,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:50,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014734726] [2024-12-02 08:05:50,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014734726] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:50,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:05:50,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:05:50,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210693680] [2024-12-02 08:05:50,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:50,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:05:50,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:50,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:05:50,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:05:50,256 INFO L87 Difference]: Start difference. First operand 5480 states and 8102 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 08:05:50,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:05:50,425 INFO L93 Difference]: Finished difference Result 11047 states and 16353 transitions. [2024-12-02 08:05:50,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:05:50,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 388 [2024-12-02 08:05:50,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:05:50,449 INFO L225 Difference]: With dead ends: 11047 [2024-12-02 08:05:50,449 INFO L226 Difference]: Without dead ends: 5624 [2024-12-02 08:05:50,464 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 08:05:50,465 INFO L435 NwaCegarLoop]: 2029 mSDtfsCounter, 35 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 4053 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:05:50,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 4053 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:05:50,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5624 states. [2024-12-02 08:05:50,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5624 to 5620. [2024-12-02 08:05:50,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5620 states, 4424 states have (on average 1.418625678119349) internal successors, (6276), 4467 states have internal predecessors, (6276), 1020 states have call successors, (1020), 178 states have call predecessors, (1020), 175 states have return successors, (1018), 1000 states have call predecessors, (1018), 1018 states have call successors, (1018) [2024-12-02 08:05:50,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 8314 transitions. [2024-12-02 08:05:50,676 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 8314 transitions. Word has length 388 [2024-12-02 08:05:50,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:05:50,677 INFO L471 AbstractCegarLoop]: Abstraction has 5620 states and 8314 transitions. [2024-12-02 08:05:50,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 08:05:50,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 8314 transitions. [2024-12-02 08:05:50,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 08:05:50,689 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:05:50,689 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:50,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:05:50,689 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:05:50,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:05:50,690 INFO L85 PathProgramCache]: Analyzing trace with hash -2071793187, now seen corresponding path program 1 times [2024-12-02 08:05:50,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:05:50,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959157859] [2024-12-02 08:05:50,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:50,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:05:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:52,026 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2024-12-02 08:05:52,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:05:52,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959157859] [2024-12-02 08:05:52,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959157859] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:05:52,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140221852] [2024-12-02 08:05:52,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:05:52,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:05:52,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:05:52,029 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:05:52,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:05:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:05:54,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 4543 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:05:54,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:05:55,198 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2024-12-02 08:05:55,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:05:55,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140221852] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:05:55,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:05:55,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-12-02 08:05:55,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503144878] [2024-12-02 08:05:55,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:05:55,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:05:55,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:05:55,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:05:55,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:05:55,200 INFO L87 Difference]: Start difference. First operand 5620 states and 8314 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-12-02 08:05:59,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:06:01,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:01,903 INFO L93 Difference]: Finished difference Result 16752 states and 24805 transitions. [2024-12-02 08:06:01,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:06:01,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 390 [2024-12-02 08:06:01,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:01,972 INFO L225 Difference]: With dead ends: 16752 [2024-12-02 08:06:01,972 INFO L226 Difference]: Without dead ends: 16742 [2024-12-02 08:06:01,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:06:01,983 INFO L435 NwaCegarLoop]: 3987 mSDtfsCounter, 3825 mSDsluCounter, 3469 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3825 SdHoareTripleChecker+Valid, 7456 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:01,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3825 Valid, 7456 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 551 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2024-12-02 08:06:01,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16742 states. [2024-12-02 08:06:02,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16742 to 16708. [2024-12-02 08:06:02,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16708 states, 13172 states have (on average 1.4215001518372306) internal successors, (18724), 13315 states have internal predecessors, (18724), 3020 states have call successors, (3020), 522 states have call predecessors, (3020), 515 states have return successors, (3018), 2948 states have call predecessors, (3018), 3018 states have call successors, (3018) [2024-12-02 08:06:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16708 states to 16708 states and 24762 transitions. [2024-12-02 08:06:02,550 INFO L78 Accepts]: Start accepts. Automaton has 16708 states and 24762 transitions. Word has length 390 [2024-12-02 08:06:02,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:02,551 INFO L471 AbstractCegarLoop]: Abstraction has 16708 states and 24762 transitions. [2024-12-02 08:06:02,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-12-02 08:06:02,551 INFO L276 IsEmpty]: Start isEmpty. Operand 16708 states and 24762 transitions. [2024-12-02 08:06:02,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-12-02 08:06:02,570 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:02,570 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:06:02,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:06:02,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 08:06:02,771 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:02,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:02,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1202105755, now seen corresponding path program 1 times [2024-12-02 08:06:02,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:06:02,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929349857] [2024-12-02 08:06:02,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:02,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:06:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:03,826 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2024-12-02 08:06:03,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:06:03,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929349857] [2024-12-02 08:06:03,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929349857] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:06:03,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:06:03,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:06:03,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002642296] [2024-12-02 08:06:03,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:06:03,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:06:03,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:06:03,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:06:03,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:06:03,828 INFO L87 Difference]: Start difference. First operand 16708 states and 24762 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:06:04,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:04,592 INFO L93 Difference]: Finished difference Result 41747 states and 61873 transitions. [2024-12-02 08:06:04,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:06:04,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 390 [2024-12-02 08:06:04,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:04,677 INFO L225 Difference]: With dead ends: 41747 [2024-12-02 08:06:04,677 INFO L226 Difference]: Without dead ends: 33365 [2024-12-02 08:06:04,707 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:06:04,707 INFO L435 NwaCegarLoop]: 2039 mSDtfsCounter, 2025 mSDsluCounter, 3996 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 6035 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:04,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 6035 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:06:04,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33365 states. [2024-12-02 08:06:05,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33365 to 16714. [2024-12-02 08:06:05,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16714 states, 13178 states have (on average 1.4213082410077402) internal successors, (18730), 13323 states have internal predecessors, (18730), 3020 states have call successors, (3020), 522 states have call predecessors, (3020), 515 states have return successors, (3018), 2946 states have call predecessors, (3018), 3018 states have call successors, (3018) [2024-12-02 08:06:05,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16714 states to 16714 states and 24768 transitions. [2024-12-02 08:06:05,395 INFO L78 Accepts]: Start accepts. Automaton has 16714 states and 24768 transitions. Word has length 390 [2024-12-02 08:06:05,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:05,395 INFO L471 AbstractCegarLoop]: Abstraction has 16714 states and 24768 transitions. [2024-12-02 08:06:05,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-12-02 08:06:05,395 INFO L276 IsEmpty]: Start isEmpty. Operand 16714 states and 24768 transitions. [2024-12-02 08:06:05,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-12-02 08:06:05,412 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:05,412 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:06:05,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:06:05,412 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:05,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:05,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1991855739, now seen corresponding path program 1 times [2024-12-02 08:06:05,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:06:05,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552295183] [2024-12-02 08:06:05,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:05,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:06:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:06,471 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2024-12-02 08:06:06,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:06:06,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552295183] [2024-12-02 08:06:06,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552295183] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:06:06,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:06:06,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:06:06,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008109740] [2024-12-02 08:06:06,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:06:06,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:06:06,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:06:06,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:06:06,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:06:06,473 INFO L87 Difference]: Start difference. First operand 16714 states and 24768 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 08:06:06,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:06,847 INFO L93 Difference]: Finished difference Result 33407 states and 49525 transitions. [2024-12-02 08:06:06,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:06:06,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 391 [2024-12-02 08:06:06,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:06,990 INFO L225 Difference]: With dead ends: 33407 [2024-12-02 08:06:06,990 INFO L226 Difference]: Without dead ends: 16750 [2024-12-02 08:06:07,041 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 08:06:07,041 INFO L435 NwaCegarLoop]: 2025 mSDtfsCounter, 2 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4047 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:07,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4047 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:06:07,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16750 states. [2024-12-02 08:06:07,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16750 to 16726. [2024-12-02 08:06:07,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16726 states, 13190 states have (on average 1.4209249431387414) internal successors, (18742), 13335 states have internal predecessors, (18742), 3020 states have call successors, (3020), 522 states have call predecessors, (3020), 515 states have return successors, (3018), 2946 states have call predecessors, (3018), 3018 states have call successors, (3018) [2024-12-02 08:06:07,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16726 states to 16726 states and 24780 transitions. [2024-12-02 08:06:07,897 INFO L78 Accepts]: Start accepts. Automaton has 16726 states and 24780 transitions. Word has length 391 [2024-12-02 08:06:07,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:07,897 INFO L471 AbstractCegarLoop]: Abstraction has 16726 states and 24780 transitions. [2024-12-02 08:06:07,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 08:06:07,897 INFO L276 IsEmpty]: Start isEmpty. Operand 16726 states and 24780 transitions. [2024-12-02 08:06:07,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 08:06:07,934 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:07,934 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:06:07,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:06:07,934 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:07,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:07,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1269269916, now seen corresponding path program 1 times [2024-12-02 08:06:07,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:06:07,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750869871] [2024-12-02 08:06:07,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:07,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:06:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:11,138 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2024-12-02 08:06:11,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:06:11,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750869871] [2024-12-02 08:06:11,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750869871] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:06:11,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:06:11,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 08:06:11,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11232747] [2024-12-02 08:06:11,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:06:11,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 08:06:11,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:06:11,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 08:06:11,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:06:11,140 INFO L87 Difference]: Start difference. First operand 16726 states and 24780 transitions. Second operand has 16 states, 16 states have (on average 10.875) internal successors, (174), 14 states have internal predecessors, (174), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 8 states have call predecessors, (33), 6 states have call successors, (33) [2024-12-02 08:06:15,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:06:19,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:06:23,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:06:34,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:34,000 INFO L93 Difference]: Finished difference Result 30919 states and 46131 transitions. [2024-12-02 08:06:34,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 08:06:34,001 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.875) internal successors, (174), 14 states have internal predecessors, (174), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 8 states have call predecessors, (33), 6 states have call successors, (33) Word has length 393 [2024-12-02 08:06:34,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:34,047 INFO L225 Difference]: With dead ends: 30919 [2024-12-02 08:06:34,047 INFO L226 Difference]: Without dead ends: 22495 [2024-12-02 08:06:34,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:06:34,072 INFO L435 NwaCegarLoop]: 1974 mSDtfsCounter, 4038 mSDsluCounter, 22645 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 358 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4039 SdHoareTripleChecker+Valid, 24619 SdHoareTripleChecker+Invalid, 2883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 2522 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:34,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4039 Valid, 24619 Invalid, 2883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [358 Valid, 2522 Invalid, 3 Unknown, 0 Unchecked, 21.2s Time] [2024-12-02 08:06:34,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22495 states. [2024-12-02 08:06:34,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22495 to 21924. [2024-12-02 08:06:34,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21924 states, 17571 states have (on average 1.4322463149507711) internal successors, (25166), 17717 states have internal predecessors, (25166), 3832 states have call successors, (3832), 527 states have call predecessors, (3832), 520 states have return successors, (3830), 3757 states have call predecessors, (3830), 3830 states have call successors, (3830) [2024-12-02 08:06:34,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21924 states to 21924 states and 32828 transitions. [2024-12-02 08:06:34,740 INFO L78 Accepts]: Start accepts. Automaton has 21924 states and 32828 transitions. Word has length 393 [2024-12-02 08:06:34,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:34,740 INFO L471 AbstractCegarLoop]: Abstraction has 21924 states and 32828 transitions. [2024-12-02 08:06:34,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.875) internal successors, (174), 14 states have internal predecessors, (174), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 8 states have call predecessors, (33), 6 states have call successors, (33) [2024-12-02 08:06:34,741 INFO L276 IsEmpty]: Start isEmpty. Operand 21924 states and 32828 transitions. [2024-12-02 08:06:34,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-12-02 08:06:34,760 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:34,760 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:06:34,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:06:34,760 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:34,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:34,760 INFO L85 PathProgramCache]: Analyzing trace with hash 371876638, now seen corresponding path program 1 times [2024-12-02 08:06:34,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:06:34,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858221037] [2024-12-02 08:06:34,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:34,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:06:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:39,211 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2024-12-02 08:06:39,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:06:39,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858221037] [2024-12-02 08:06:39,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858221037] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:06:39,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:06:39,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:06:39,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850570393] [2024-12-02 08:06:39,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:06:39,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:06:39,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:06:39,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:06:39,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:06:39,213 INFO L87 Difference]: Start difference. First operand 21924 states and 32828 transitions. Second operand has 13 states, 11 states have (on average 15.272727272727273) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-12-02 08:06:40,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:40,572 INFO L93 Difference]: Finished difference Result 38641 states and 57609 transitions. [2024-12-02 08:06:40,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:06:40,572 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 15.272727272727273) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) Word has length 393 [2024-12-02 08:06:40,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:40,611 INFO L225 Difference]: With dead ends: 38641 [2024-12-02 08:06:40,611 INFO L226 Difference]: Without dead ends: 16836 [2024-12-02 08:06:40,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:06:40,643 INFO L435 NwaCegarLoop]: 2018 mSDtfsCounter, 3 mSDsluCounter, 22157 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 24175 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:40,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 24175 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:06:40,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16836 states. [2024-12-02 08:06:41,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16836 to 16836. [2024-12-02 08:06:41,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16836 states, 13275 states have (on average 1.4193596986817325) internal successors, (18842), 13421 states have internal predecessors, (18842), 3040 states have call successors, (3040), 527 states have call predecessors, (3040), 520 states have return successors, (3038), 2965 states have call predecessors, (3038), 3038 states have call successors, (3038) [2024-12-02 08:06:41,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16836 states to 16836 states and 24920 transitions. [2024-12-02 08:06:41,157 INFO L78 Accepts]: Start accepts. Automaton has 16836 states and 24920 transitions. Word has length 393 [2024-12-02 08:06:41,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:41,157 INFO L471 AbstractCegarLoop]: Abstraction has 16836 states and 24920 transitions. [2024-12-02 08:06:41,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 15.272727272727273) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-12-02 08:06:41,157 INFO L276 IsEmpty]: Start isEmpty. Operand 16836 states and 24920 transitions. [2024-12-02 08:06:41,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-12-02 08:06:41,173 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:41,173 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:06:41,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 08:06:41,173 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:41,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:41,174 INFO L85 PathProgramCache]: Analyzing trace with hash -673695865, now seen corresponding path program 1 times [2024-12-02 08:06:41,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:06:41,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553401215] [2024-12-02 08:06:41,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:41,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:06:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:43,354 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2024-12-02 08:06:43,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:06:43,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553401215] [2024-12-02 08:06:43,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553401215] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:06:43,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:06:43,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:06:43,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090407579] [2024-12-02 08:06:43,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:06:43,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:06:43,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:06:43,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:06:43,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:06:43,357 INFO L87 Difference]: Start difference. First operand 16836 states and 24920 transitions. Second operand has 8 states, 8 states have (on average 22.0) internal successors, (176), 7 states have internal predecessors, (176), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 08:06:44,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:06:44,247 INFO L93 Difference]: Finished difference Result 33637 states and 49809 transitions. [2024-12-02 08:06:44,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:06:44,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 7 states have internal predecessors, (176), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 401 [2024-12-02 08:06:44,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:06:44,292 INFO L225 Difference]: With dead ends: 33637 [2024-12-02 08:06:44,292 INFO L226 Difference]: Without dead ends: 16920 [2024-12-02 08:06:44,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:06:44,316 INFO L435 NwaCegarLoop]: 2024 mSDtfsCounter, 0 mSDsluCounter, 12132 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14156 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:06:44,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14156 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:06:44,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16920 states. [2024-12-02 08:06:44,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16920 to 16920. [2024-12-02 08:06:44,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16920 states, 13347 states have (on average 1.4170974750880347) internal successors, (18914), 13493 states have internal predecessors, (18914), 3040 states have call successors, (3040), 527 states have call predecessors, (3040), 532 states have return successors, (3074), 2977 states have call predecessors, (3074), 3038 states have call successors, (3074) [2024-12-02 08:06:44,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16920 states to 16920 states and 25028 transitions. [2024-12-02 08:06:44,797 INFO L78 Accepts]: Start accepts. Automaton has 16920 states and 25028 transitions. Word has length 401 [2024-12-02 08:06:44,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:06:44,797 INFO L471 AbstractCegarLoop]: Abstraction has 16920 states and 25028 transitions. [2024-12-02 08:06:44,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 7 states have internal predecessors, (176), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 08:06:44,797 INFO L276 IsEmpty]: Start isEmpty. Operand 16920 states and 25028 transitions. [2024-12-02 08:06:44,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-12-02 08:06:44,812 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:06:44,812 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:06:44,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 08:06:44,813 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:06:44,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:06:44,813 INFO L85 PathProgramCache]: Analyzing trace with hash -249149698, now seen corresponding path program 1 times [2024-12-02 08:06:44,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:06:44,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877704] [2024-12-02 08:06:44,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:06:44,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:06:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:06:47,707 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2024-12-02 08:06:47,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:06:47,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877704] [2024-12-02 08:06:47,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877704] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:06:47,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:06:47,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 08:06:47,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503501284] [2024-12-02 08:06:47,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:06:47,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 08:06:47,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:06:47,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 08:06:47,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:06:47,709 INFO L87 Difference]: Start difference. First operand 16920 states and 25028 transitions. Second operand has 16 states, 16 states have (on average 11.5) internal successors, (184), 14 states have internal predecessors, (184), 6 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (34), 8 states have call predecessors, (34), 6 states have call successors, (34) [2024-12-02 08:06:51,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:06:55,754 WARN L539 Checker$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 08:06:59,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:07:13,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:07:13,016 INFO L93 Difference]: Finished difference Result 31117 states and 46407 transitions. [2024-12-02 08:07:13,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 08:07:13,016 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.5) internal successors, (184), 14 states have internal predecessors, (184), 6 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (34), 8 states have call predecessors, (34), 6 states have call successors, (34) Word has length 405 [2024-12-02 08:07:13,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:07:13,095 INFO L225 Difference]: With dead ends: 31117 [2024-12-02 08:07:13,095 INFO L226 Difference]: Without dead ends: 22627 [2024-12-02 08:07:13,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:07:13,117 INFO L435 NwaCegarLoop]: 1971 mSDtfsCounter, 4026 mSDsluCounter, 24343 mSDsCounter, 0 mSdLazyCounter, 2923 mSolverCounterSat, 352 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4027 SdHoareTripleChecker+Valid, 26314 SdHoareTripleChecker+Invalid, 3278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 2923 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:07:13,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4027 Valid, 26314 Invalid, 3278 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [352 Valid, 2923 Invalid, 3 Unknown, 0 Unchecked, 23.3s Time] [2024-12-02 08:07:13,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22627 states. [2024-12-02 08:07:13,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22627 to 22056. [2024-12-02 08:07:13,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22056 states, 17679 states have (on average 1.4296057469313874) internal successors, (25274), 17825 states have internal predecessors, (25274), 3844 states have call successors, (3844), 527 states have call predecessors, (3844), 532 states have return successors, (3902), 3781 states have call predecessors, (3902), 3842 states have call successors, (3902) [2024-12-02 08:07:13,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22056 states to 22056 states and 33020 transitions. [2024-12-02 08:07:13,769 INFO L78 Accepts]: Start accepts. Automaton has 22056 states and 33020 transitions. Word has length 405 [2024-12-02 08:07:13,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:07:13,769 INFO L471 AbstractCegarLoop]: Abstraction has 22056 states and 33020 transitions. [2024-12-02 08:07:13,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.5) internal successors, (184), 14 states have internal predecessors, (184), 6 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (34), 8 states have call predecessors, (34), 6 states have call successors, (34) [2024-12-02 08:07:13,769 INFO L276 IsEmpty]: Start isEmpty. Operand 22056 states and 33020 transitions. [2024-12-02 08:07:13,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-12-02 08:07:13,787 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:07:13,787 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:13,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 08:07:13,787 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:07:13,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:07:13,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1146542976, now seen corresponding path program 1 times [2024-12-02 08:07:13,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:07:13,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379313526] [2024-12-02 08:07:13,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:07:13,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:07:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:07:15,044 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2024-12-02 08:07:15,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:07:15,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379313526] [2024-12-02 08:07:15,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379313526] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:07:15,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:07:15,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:07:15,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415512090] [2024-12-02 08:07:15,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:07:15,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:07:15,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:07:15,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:07:15,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:07:15,046 INFO L87 Difference]: Start difference. First operand 22056 states and 33020 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 08:07:15,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:07:15,551 INFO L93 Difference]: Finished difference Result 43993 states and 65889 transitions. [2024-12-02 08:07:15,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:07:15,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 405 [2024-12-02 08:07:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:07:15,606 INFO L225 Difference]: With dead ends: 43993 [2024-12-02 08:07:15,606 INFO L226 Difference]: Without dead ends: 22056 [2024-12-02 08:07:15,649 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 08:07:15,649 INFO L435 NwaCegarLoop]: 2026 mSDtfsCounter, 2 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4049 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:07:15,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4049 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:07:15,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22056 states. [2024-12-02 08:07:16,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22056 to 22056. [2024-12-02 08:07:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22056 states, 17679 states have (on average 1.4289269755076646) internal successors, (25262), 17825 states have internal predecessors, (25262), 3844 states have call successors, (3844), 527 states have call predecessors, (3844), 532 states have return successors, (3902), 3781 states have call predecessors, (3902), 3842 states have call successors, (3902) [2024-12-02 08:07:16,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22056 states to 22056 states and 33008 transitions. [2024-12-02 08:07:16,344 INFO L78 Accepts]: Start accepts. Automaton has 22056 states and 33008 transitions. Word has length 405 [2024-12-02 08:07:16,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:07:16,344 INFO L471 AbstractCegarLoop]: Abstraction has 22056 states and 33008 transitions. [2024-12-02 08:07:16,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 08:07:16,344 INFO L276 IsEmpty]: Start isEmpty. Operand 22056 states and 33008 transitions. [2024-12-02 08:07:16,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-12-02 08:07:16,362 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:07:16,362 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:16,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:07:16,362 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:07:16,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:07:16,363 INFO L85 PathProgramCache]: Analyzing trace with hash -316022627, now seen corresponding path program 1 times [2024-12-02 08:07:16,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:07:16,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413630518] [2024-12-02 08:07:16,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:07:16,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:07:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:07:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2024-12-02 08:07:20,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:07:20,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413630518] [2024-12-02 08:07:20,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413630518] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:07:20,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:07:20,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:07:20,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541884861] [2024-12-02 08:07:20,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:07:20,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:07:20,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:07:20,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:07:20,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:07:20,601 INFO L87 Difference]: Start difference. First operand 22056 states and 33008 transitions. Second operand has 13 states, 11 states have (on average 16.363636363636363) internal successors, (180), 10 states have internal predecessors, (180), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) [2024-12-02 08:07:22,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:07:22,039 INFO L93 Difference]: Finished difference Result 38905 states and 57945 transitions. [2024-12-02 08:07:22,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:07:22,039 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 16.363636363636363) internal successors, (180), 10 states have internal predecessors, (180), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) Word has length 407 [2024-12-02 08:07:22,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:07:22,080 INFO L225 Difference]: With dead ends: 38905 [2024-12-02 08:07:22,080 INFO L226 Difference]: Without dead ends: 16968 [2024-12-02 08:07:22,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:07:22,112 INFO L435 NwaCegarLoop]: 2021 mSDtfsCounter, 3 mSDsluCounter, 22179 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 24200 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:07:22,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 24200 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:07:22,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16968 states. [2024-12-02 08:07:22,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16968 to 16920. [2024-12-02 08:07:22,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16920 states, 13347 states have (on average 1.4161983966434404) internal successors, (18902), 13493 states have internal predecessors, (18902), 3040 states have call successors, (3040), 527 states have call predecessors, (3040), 532 states have return successors, (3074), 2977 states have call predecessors, (3074), 3038 states have call successors, (3074) [2024-12-02 08:07:22,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16920 states to 16920 states and 25016 transitions. [2024-12-02 08:07:22,594 INFO L78 Accepts]: Start accepts. Automaton has 16920 states and 25016 transitions. Word has length 407 [2024-12-02 08:07:22,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:07:22,594 INFO L471 AbstractCegarLoop]: Abstraction has 16920 states and 25016 transitions. [2024-12-02 08:07:22,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 16.363636363636363) internal successors, (180), 10 states have internal predecessors, (180), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) [2024-12-02 08:07:22,595 INFO L276 IsEmpty]: Start isEmpty. Operand 16920 states and 25016 transitions. [2024-12-02 08:07:22,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-12-02 08:07:22,610 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:07:22,610 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:22,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 08:07:22,611 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:07:22,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:07:22,611 INFO L85 PathProgramCache]: Analyzing trace with hash 851483042, now seen corresponding path program 1 times [2024-12-02 08:07:22,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:07:22,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090245881] [2024-12-02 08:07:22,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:07:22,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:07:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:07:27,767 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 56 proven. 3 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2024-12-02 08:07:27,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:07:27,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090245881] [2024-12-02 08:07:27,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090245881] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:07:27,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825575708] [2024-12-02 08:07:27,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:07:27,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:07:27,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:07:27,770 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:07:27,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:07:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:07:30,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 4739 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-12-02 08:07:30,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:07:34,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:07:34,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 17 [2024-12-02 08:07:34,777 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2024-12-02 08:07:34,777 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:07:34,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825575708] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:07:34,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:07:34,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [22] total 39 [2024-12-02 08:07:34,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023341520] [2024-12-02 08:07:34,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:07:34,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 08:07:34,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:07:34,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 08:07:34,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1399, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 08:07:34,779 INFO L87 Difference]: Start difference. First operand 16920 states and 25016 transitions. Second operand has 20 states, 20 states have (on average 9.25) internal successors, (185), 18 states have internal predecessors, (185), 7 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (36), 9 states have call predecessors, (36), 7 states have call successors, (36) [2024-12-02 08:07:38,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:07:42,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:08:00,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:08:00,531 INFO L93 Difference]: Finished difference Result 25734 states and 38048 transitions. [2024-12-02 08:08:00,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 08:08:00,531 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 9.25) internal successors, (185), 18 states have internal predecessors, (185), 7 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (36), 9 states have call predecessors, (36), 7 states have call successors, (36) Word has length 423 [2024-12-02 08:08:00,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:08:00,571 INFO L225 Difference]: With dead ends: 25734 [2024-12-02 08:08:00,571 INFO L226 Difference]: Without dead ends: 17244 [2024-12-02 08:08:00,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=199, Invalid=3107, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 08:08:00,588 INFO L435 NwaCegarLoop]: 1888 mSDtfsCounter, 2464 mSDsluCounter, 24713 mSDsCounter, 0 mSdLazyCounter, 3399 mSolverCounterSat, 157 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2473 SdHoareTripleChecker+Valid, 26601 SdHoareTripleChecker+Invalid, 3558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3399 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:08:00,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2473 Valid, 26601 Invalid, 3558 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [157 Valid, 3399 Invalid, 2 Unknown, 0 Unchecked, 22.5s Time] [2024-12-02 08:08:00,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17244 states. [2024-12-02 08:08:01,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17244 to 17136. [2024-12-02 08:08:01,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17136 states, 13539 states have (on average 1.4173868084792083) internal successors, (19190), 13685 states have internal predecessors, (19190), 3064 states have call successors, (3064), 527 states have call predecessors, (3064), 532 states have return successors, (3098), 3001 states have call predecessors, (3098), 3062 states have call successors, (3098) [2024-12-02 08:08:01,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17136 states to 17136 states and 25352 transitions. [2024-12-02 08:08:01,108 INFO L78 Accepts]: Start accepts. Automaton has 17136 states and 25352 transitions. Word has length 423 [2024-12-02 08:08:01,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:08:01,108 INFO L471 AbstractCegarLoop]: Abstraction has 17136 states and 25352 transitions. [2024-12-02 08:08:01,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.25) internal successors, (185), 18 states have internal predecessors, (185), 7 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (36), 9 states have call predecessors, (36), 7 states have call successors, (36) [2024-12-02 08:08:01,109 INFO L276 IsEmpty]: Start isEmpty. Operand 17136 states and 25352 transitions. [2024-12-02 08:08:01,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-12-02 08:08:01,123 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:08:01,124 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:08:01,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 08:08:01,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 08:08:01,324 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:08:01,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:08:01,324 INFO L85 PathProgramCache]: Analyzing trace with hash -45910236, now seen corresponding path program 1 times [2024-12-02 08:08:01,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:08:01,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608035804] [2024-12-02 08:08:01,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:08:01,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:08:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:08:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 39 proven. 86 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2024-12-02 08:08:42,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:08:42,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608035804] [2024-12-02 08:08:42,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608035804] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:08:42,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816228405] [2024-12-02 08:08:42,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:08:42,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:08:42,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:08:42,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:08:42,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:08:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:08:44,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 4742 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-12-02 08:08:44,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:08:49,289 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-12-02 08:08:49,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22322 treesize of output 21235 [2024-12-02 08:08:49,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4125 treesize of output 3853 [2024-12-02 08:08:58,763 INFO L224 Elim1Store]: Index analysis took 122 ms [2024-12-02 08:08:58,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 53 [2024-12-02 08:08:59,092 INFO L224 Elim1Store]: Index analysis took 122 ms [2024-12-02 08:08:59,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 51 [2024-12-02 08:08:59,406 INFO L224 Elim1Store]: Index analysis took 118 ms [2024-12-02 08:08:59,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 51 [2024-12-02 08:08:59,744 INFO L224 Elim1Store]: Index analysis took 117 ms [2024-12-02 08:08:59,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 51 [2024-12-02 08:09:00,068 INFO L224 Elim1Store]: Index analysis took 129 ms [2024-12-02 08:09:00,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 49 [2024-12-02 08:09:00,390 INFO L224 Elim1Store]: Index analysis took 119 ms [2024-12-02 08:09:00,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 51 [2024-12-02 08:09:00,720 INFO L224 Elim1Store]: Index analysis took 126 ms [2024-12-02 08:09:00,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 51 [2024-12-02 08:09:01,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:01,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:01,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:01,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:01,230 INFO L224 Elim1Store]: Index analysis took 167 ms [2024-12-02 08:09:01,480 INFO L349 Elim1Store]: treesize reduction 111, result has 21.3 percent of original size [2024-12-02 08:09:01,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 25 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 67 [2024-12-02 08:09:01,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:01,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:01,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:01,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:01,862 INFO L224 Elim1Store]: Index analysis took 145 ms [2024-12-02 08:09:02,344 INFO L349 Elim1Store]: treesize reduction 299, result has 19.2 percent of original size [2024-12-02 08:09:02,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 26 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 123 [2024-12-02 08:09:02,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:02,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:02,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:02,965 INFO L224 Elim1Store]: Index analysis took 131 ms [2024-12-02 08:09:03,203 INFO L349 Elim1Store]: treesize reduction 109, result has 21.6 percent of original size [2024-12-02 08:09:03,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 24 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 65 [2024-12-02 08:09:03,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:03,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2024-12-02 08:09:03,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:03,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:03,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 38 [2024-12-02 08:09:03,911 INFO L224 Elim1Store]: Index analysis took 137 ms [2024-12-02 08:09:03,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2024-12-02 08:09:04,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:04,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:04,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:04,153 INFO L224 Elim1Store]: Index analysis took 126 ms [2024-12-02 08:09:04,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 24 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2024-12-02 08:09:04,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2024-12-02 08:09:04,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:04,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:04,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 39 [2024-12-02 08:09:04,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:04,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:04,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:04,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:04,839 INFO L224 Elim1Store]: Index analysis took 139 ms [2024-12-02 08:09:05,096 INFO L349 Elim1Store]: treesize reduction 109, result has 21.6 percent of original size [2024-12-02 08:09:05,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 25 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 65 [2024-12-02 08:09:05,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:05,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:05,486 INFO L224 Elim1Store]: Index analysis took 131 ms [2024-12-02 08:09:05,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 24 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-12-02 08:09:05,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:05,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:05,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 39 [2024-12-02 08:09:05,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:05,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:05,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:05,957 INFO L224 Elim1Store]: Index analysis took 130 ms [2024-12-02 08:09:06,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 25 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-12-02 08:09:06,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 38 [2024-12-02 08:09:06,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:06,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:06,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:09:06,424 INFO L224 Elim1Store]: Index analysis took 139 ms [2024-12-02 08:09:06,542 INFO L349 Elim1Store]: treesize reduction 140, result has 0.7 percent of original size [2024-12-02 08:09:06,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 24 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 37 [2024-12-02 08:09:16,975 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 27 proven. 72 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2024-12-02 08:09:16,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:09:19,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816228405] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:09:19,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:09:19,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 9] total 56 [2024-12-02 08:09:19,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179389994] [2024-12-02 08:09:19,299 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:09:19,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-12-02 08:09:19,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:09:19,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-12-02 08:09:19,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=3458, Unknown=0, NotChecked=0, Total=3660 [2024-12-02 08:09:19,301 INFO L87 Difference]: Start difference. First operand 17136 states and 25352 transitions. Second operand has 56 states, 53 states have (on average 6.0754716981132075) internal successors, (322), 48 states have internal predecessors, (322), 24 states have call successors, (73), 7 states have call predecessors, (73), 9 states have return successors, (72), 26 states have call predecessors, (72), 24 states have call successors, (72) [2024-12-02 08:09:23,325 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 08:09:27,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:09:31,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:09:35,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:09:39,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:09:43,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:09:47,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:09:51,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:09:55,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:09:59,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:10:03,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:10:07,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:10:11,656 WARN L539 Checker$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 08:10:15,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:10:19,717 WARN L539 Checker$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 08:10:23,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:10:27,804 WARN L539 Checker$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 08:10:31,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:10:35,846 WARN L539 Checker$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 08:10:39,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:10:43,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:10:47,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:10:52,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:10:56,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:00,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:04,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:08,160 WARN L539 Checker$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 08:11:12,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:16,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:20,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:24,338 WARN L539 Checker$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 08:11:28,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:32,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:36,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:40,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:44,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:48,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:52,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:11:56,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:12:00,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:12:04,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:12:08,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:12:12,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:12:16,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:12:20,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:12:24,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:13:42,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:18:00,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:18:00,689 INFO L93 Difference]: Finished difference Result 50413 states and 76125 transitions. [2024-12-02 08:18:00,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2024-12-02 08:18:00,690 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 53 states have (on average 6.0754716981132075) internal successors, (322), 48 states have internal predecessors, (322), 24 states have call successors, (73), 7 states have call predecessors, (73), 9 states have return successors, (72), 26 states have call predecessors, (72), 24 states have call successors, (72) Word has length 423 [2024-12-02 08:18:00,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:18:00,773 INFO L225 Difference]: With dead ends: 50413 [2024-12-02 08:18:00,773 INFO L226 Difference]: Without dead ends: 33396 [2024-12-02 08:18:00,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 549 SyntacticMatches, 2 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10242 ImplicationChecksByTransitivity, 82.9s TimeCoverageRelationStatistics Valid=2329, Invalid=33961, Unknown=0, NotChecked=0, Total=36290 [2024-12-02 08:18:00,811 INFO L435 NwaCegarLoop]: 1218 mSDtfsCounter, 11807 mSDsluCounter, 37635 mSDsCounter, 0 mSdLazyCounter, 57370 mSolverCounterSat, 4016 mSolverCounterUnsat, 46 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 439.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11933 SdHoareTripleChecker+Valid, 38853 SdHoareTripleChecker+Invalid, 61432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.8s SdHoareTripleChecker+Time, 4016 IncrementalHoareTripleChecker+Valid, 57370 IncrementalHoareTripleChecker+Invalid, 46 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 452.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:18:00,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11933 Valid, 38853 Invalid, 61432 Unknown, 0 Unchecked, 0.8s Time], IncrementalHoareTripleChecker [4016 Valid, 57370 Invalid, 46 Unknown, 0 Unchecked, 452.5s Time] [2024-12-02 08:18:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33396 states. [2024-12-02 08:18:02,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33396 to 26829. [2024-12-02 08:18:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26829 states, 21362 states have (on average 1.4458852167400056) internal successors, (30887), 21570 states have internal predecessors, (30887), 4859 states have call successors, (4859), 588 states have call predecessors, (4859), 607 states have return successors, (5113), 4780 states have call predecessors, (5113), 4857 states have call successors, (5113) [2024-12-02 08:18:02,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26829 states to 26829 states and 40859 transitions. [2024-12-02 08:18:02,242 INFO L78 Accepts]: Start accepts. Automaton has 26829 states and 40859 transitions. Word has length 423 [2024-12-02 08:18:02,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:02,243 INFO L471 AbstractCegarLoop]: Abstraction has 26829 states and 40859 transitions. [2024-12-02 08:18:02,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 53 states have (on average 6.0754716981132075) internal successors, (322), 48 states have internal predecessors, (322), 24 states have call successors, (73), 7 states have call predecessors, (73), 9 states have return successors, (72), 26 states have call predecessors, (72), 24 states have call successors, (72) [2024-12-02 08:18:02,243 INFO L276 IsEmpty]: Start isEmpty. Operand 26829 states and 40859 transitions. [2024-12-02 08:18:02,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-12-02 08:18:02,281 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:02,281 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:02,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 08:18:02,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 08:18:02,482 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:02,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:02,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1929962996, now seen corresponding path program 1 times [2024-12-02 08:18:02,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:02,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130539029] [2024-12-02 08:18:02,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:02,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:03,635 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2024-12-02 08:18:03,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:03,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130539029] [2024-12-02 08:18:03,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130539029] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:18:03,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191334678] [2024-12-02 08:18:03,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:03,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:18:03,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:18:03,637 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:18:03,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:18:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:06,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 4744 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 08:18:06,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:18:06,800 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-12-02 08:18:06,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 676 treesize of output 645 [2024-12-02 08:18:06,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 627 treesize of output 579 [2024-12-02 08:18:08,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:08,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 24 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 55 [2024-12-02 08:18:08,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:08,608 INFO L224 Elim1Store]: Index analysis took 105 ms [2024-12-02 08:18:08,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 51 [2024-12-02 08:18:09,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 57 [2024-12-02 08:18:09,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 53 [2024-12-02 08:18:09,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:09,592 INFO L224 Elim1Store]: Index analysis took 101 ms [2024-12-02 08:18:09,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 38 [2024-12-02 08:18:09,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:09,852 INFO L224 Elim1Store]: Index analysis took 105 ms [2024-12-02 08:18:09,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 38 [2024-12-02 08:18:10,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:10,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:10,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:10,146 INFO L224 Elim1Store]: Index analysis took 108 ms [2024-12-02 08:18:10,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 24 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 36 [2024-12-02 08:18:10,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:10,414 INFO L224 Elim1Store]: Index analysis took 113 ms [2024-12-02 08:18:10,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 36 [2024-12-02 08:18:11,068 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 776 trivial. 0 not checked. [2024-12-02 08:18:11,068 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:18:11,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191334678] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:18:11,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:18:11,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2024-12-02 08:18:11,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743138450] [2024-12-02 08:18:11,766 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:18:11,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:18:11,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:11,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:18:11,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:18:11,768 INFO L87 Difference]: Start difference. First operand 26829 states and 40859 transitions. Second operand has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-12-02 08:18:15,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:18:19,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:18:19,467 INFO L93 Difference]: Finished difference Result 52168 states and 79508 transitions. [2024-12-02 08:18:19,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:18:19,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 424 [2024-12-02 08:18:19,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:18:19,538 INFO L225 Difference]: With dead ends: 52168 [2024-12-02 08:18:19,538 INFO L226 Difference]: Without dead ends: 26971 [2024-12-02 08:18:19,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:18:19,594 INFO L435 NwaCegarLoop]: 2020 mSDtfsCounter, 10 mSDsluCounter, 7817 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 9837 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:18:19,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 9837 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2024-12-02 08:18:19,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26971 states. [2024-12-02 08:18:20,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26971 to 26557. [2024-12-02 08:18:20,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26557 states, 21132 states have (on average 1.4461007003596442) internal successors, (30559), 21338 states have internal predecessors, (30559), 4817 states have call successors, (4817), 588 states have call predecessors, (4817), 607 states have return successors, (5057), 4740 states have call predecessors, (5057), 4815 states have call successors, (5057) [2024-12-02 08:18:20,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26557 states to 26557 states and 40433 transitions. [2024-12-02 08:18:20,905 INFO L78 Accepts]: Start accepts. Automaton has 26557 states and 40433 transitions. Word has length 424 [2024-12-02 08:18:20,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:20,906 INFO L471 AbstractCegarLoop]: Abstraction has 26557 states and 40433 transitions. [2024-12-02 08:18:20,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-12-02 08:18:20,906 INFO L276 IsEmpty]: Start isEmpty. Operand 26557 states and 40433 transitions. [2024-12-02 08:18:20,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-12-02 08:18:20,945 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:20,945 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:20,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:18:21,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-02 08:18:21,146 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:21,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:21,146 INFO L85 PathProgramCache]: Analyzing trace with hash 491145973, now seen corresponding path program 1 times [2024-12-02 08:18:21,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:21,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033241288] [2024-12-02 08:18:21,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:21,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:22,253 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2024-12-02 08:18:22,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:22,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033241288] [2024-12-02 08:18:22,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033241288] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:18:22,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902883261] [2024-12-02 08:18:22,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:22,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:18:22,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:18:22,255 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:18:22,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b44d50c3-8111-4c5b-a16b-799c82bc3e69/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 08:18:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:24,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 4769 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-12-02 08:18:24,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:18:25,535 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-12-02 08:18:25,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1374 treesize of output 1291 [2024-12-02 08:18:25,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 705 treesize of output 665 [2024-12-02 08:18:25,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 665 treesize of output 633 [2024-12-02 08:18:27,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 75 [2024-12-02 08:18:27,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 73 [2024-12-02 08:18:27,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 79 [2024-12-02 08:18:27,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 77 [2024-12-02 08:18:29,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:29,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:29,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 43 [2024-12-02 08:18:30,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:30,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:30,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 43 [2024-12-02 08:18:30,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 43 [2024-12-02 08:18:30,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:30,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:30,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 43 [2024-12-02 08:18:46,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 08:18:47,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 514 treesize of output 415 [2024-12-02 08:18:47,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 128 [2024-12-02 08:18:47,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,426 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 08:18:47,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 113 [2024-12-02 08:18:47,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,718 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 08:18:47,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 109 [2024-12-02 08:18:47,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:47,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:48,001 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 08:18:48,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 117 [2024-12-02 08:18:53,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:18:53,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 389 treesize of output 193 [2024-12-02 08:18:55,668 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 776 trivial. 0 not checked. [2024-12-02 08:18:55,668 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:18:57,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902883261] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:18:57,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:18:57,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 16] total 19 [2024-12-02 08:18:57,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195739324] [2024-12-02 08:18:57,423 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:18:57,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:18:57,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:57,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:18:57,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:18:57,426 INFO L87 Difference]: Start difference. First operand 26557 states and 40433 transitions. Second operand has 19 states, 19 states have (on average 13.578947368421053) internal successors, (258), 19 states have internal predecessors, (258), 6 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (45), 6 states have call predecessors, (45), 6 states have call successors, (45) [2024-12-02 08:19:01,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:19:05,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:19:09,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:13,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:19:17,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:19:21,688 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 []