./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya --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 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:23:26,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:23:26,657 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-28 20:23:26,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:23:26,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:23:26,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:23:26,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:23:26,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:23:26,690 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:23:26,691 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:23:26,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:23:26,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:23:26,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:23:26,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:23:26,694 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:23:26,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:23:26,695 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:23:26,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:23:26,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:23:26,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:23:26,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:23:26,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:23:26,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:23:26,700 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:23:26,701 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:23:26,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:23:26,702 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:23:26,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:23:26,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:23:26,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:23:26,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:23:26,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:23:26,704 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:23:26,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:23:26,705 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:23:26,705 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:23:26,705 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:23:26,705 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:23:26,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:23:26,706 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2023-11-28 20:23:26,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:23:26,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:23:26,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:23:26,951 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:23:26,952 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:23:26,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2023-11-28 20:23:29,771 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:23:30,275 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:23:30,276 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2023-11-28 20:23:30,314 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/data/c45ab9319/e8c9c759a0fe4b52a565ba85d02433fd/FLAG6948678f5 [2023-11-28 20:23:30,330 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/data/c45ab9319/e8c9c759a0fe4b52a565ba85d02433fd [2023-11-28 20:23:30,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:23:30,335 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:23:30,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:23:30,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:23:30,343 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:23:30,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:23:30" (1/1) ... [2023-11-28 20:23:30,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374ea43b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:30, skipping insertion in model container [2023-11-28 20:23:30,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:23:30" (1/1) ... [2023-11-28 20:23:30,517 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:23:32,335 WARN L240 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_0385af9c-79ce-443f-8b32-191154f752ec/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2023-11-28 20:23:32,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:23:32,443 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:23:32,583 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"); [5577] [2023-11-28 20:23:32,585 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)); [5584] [2023-11-28 20:23:32,601 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5925-5926] [2023-11-28 20:23:32,604 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5954-5955] [2023-11-28 20:23:32,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7805] [2023-11-28 20:23:32,795 WARN L240 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_0385af9c-79ce-443f-8b32-191154f752ec/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2023-11-28 20:23:32,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:23:32,946 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:23:32,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32 WrapperNode [2023-11-28 20:23:32,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:23:32,948 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:23:32,948 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:23:32,948 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:23:32,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (1/1) ... [2023-11-28 20:23:33,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (1/1) ... [2023-11-28 20:23:33,167 INFO L138 Inliner]: procedures = 262, calls = 1371, calls flagged for inlining = 122, calls inlined = 117, statements flattened = 4065 [2023-11-28 20:23:33,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:23:33,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:23:33,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:23:33,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:23:33,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (1/1) ... [2023-11-28 20:23:33,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (1/1) ... [2023-11-28 20:23:33,205 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (1/1) ... [2023-11-28 20:23:34,105 INFO L175 MemorySlicer]: Split 742 memory accesses to 15 slices as follows [2, 4, 15, 4, 37, 5, 10, 9, 41, 2, 9, 24, 19, 7, 554]. 75 percent of accesses are in the largest equivalence class. The 279 initializations are split as follows [2, 4, 15, 4, 31, 4, 10, 9, 41, 0, 9, 0, 0, 0, 150]. The 172 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 17, 16, 2, 136]. [2023-11-28 20:23:34,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (1/1) ... [2023-11-28 20:23:34,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (1/1) ... [2023-11-28 20:23:34,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (1/1) ... [2023-11-28 20:23:34,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (1/1) ... [2023-11-28 20:23:34,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (1/1) ... [2023-11-28 20:23:34,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (1/1) ... [2023-11-28 20:23:34,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:23:34,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:23:34,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:23:34,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:23:34,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (1/1) ... [2023-11-28 20:23:34,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:23:34,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:34,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:23:34,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:23:34,406 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2023-11-28 20:23:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2023-11-28 20:23:34,406 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-28 20:23:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-28 20:23:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-28 20:23:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-28 20:23:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-28 20:23:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-28 20:23:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-28 20:23:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-28 20:23:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-28 20:23:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-28 20:23:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-28 20:23:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-28 20:23:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-28 20:23:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-28 20:23:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-28 20:23:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-28 20:23:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-28 20:23:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-28 20:23:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-28 20:23:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-28 20:23:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-28 20:23:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-28 20:23:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-28 20:23:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-28 20:23:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-28 20:23:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-28 20:23:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-28 20:23:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-28 20:23:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-28 20:23:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-28 20:23:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-28 20:23:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-28 20:23:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-28 20:23:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-28 20:23:34,413 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2023-11-28 20:23:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2023-11-28 20:23:34,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-28 20:23:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-28 20:23:34,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-28 20:23:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-28 20:23:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset_after_host_error [2023-11-28 20:23:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset_after_host_error [2023-11-28 20:23:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-28 20:23:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-28 20:23:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-28 20:23:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-28 20:23:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-28 20:23:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-28 20:23:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-28 20:23:34,415 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-28 20:23:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2023-11-28 20:23:34,415 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2023-11-28 20:23:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-28 20:23:34,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-28 20:23:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-28 20:23:34,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-28 20:23:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-28 20:23:34,416 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-28 20:23:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-28 20:23:34,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-28 20:23:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2023-11-28 20:23:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2023-11-28 20:23:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-28 20:23:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-28 20:23:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-28 20:23:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-28 20:23:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2023-11-28 20:23:34,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2023-11-28 20:23:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-28 20:23:34,418 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-28 20:23:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 20:23:34,418 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 20:23:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-28 20:23:34,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-28 20:23:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-28 20:23:34,419 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-28 20:23:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-28 20:23:34,419 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-28 20:23:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2023-11-28 20:23:34,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2023-11-28 20:23:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2023-11-28 20:23:34,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2023-11-28 20:23:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-28 20:23:34,420 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-28 20:23:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:23:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-28 20:23:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-28 20:23:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-28 20:23:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-28 20:23:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2023-11-28 20:23:34,422 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2023-11-28 20:23:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-28 20:23:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-28 20:23:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-28 20:23:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-28 20:23:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-28 20:23:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-28 20:23:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-28 20:23:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-28 20:23:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-28 20:23:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-28 20:23:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-28 20:23:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-28 20:23:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-28 20:23:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-28 20:23:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-28 20:23:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-28 20:23:34,424 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-28 20:23:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-28 20:23:34,425 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-28 20:23:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-28 20:23:34,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-28 20:23:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-28 20:23:34,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-28 20:23:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2023-11-28 20:23:34,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2023-11-28 20:23:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-28 20:23:34,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-28 20:23:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2023-11-28 20:23:34,426 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2023-11-28 20:23:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:23:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-28 20:23:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-28 20:23:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-28 20:23:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-28 20:23:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-28 20:23:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-28 20:23:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-28 20:23:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-28 20:23:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-28 20:23:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-28 20:23:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-28 20:23:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-28 20:23:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-28 20:23:34,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-28 20:23:34,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-28 20:23:34,429 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-28 20:23:34,429 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-28 20:23:34,429 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2023-11-28 20:23:34,429 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2023-11-28 20:23:34,429 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-28 20:23:34,429 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-28 20:23:34,430 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-28 20:23:34,430 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-28 20:23:34,430 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-28 20:23:34,430 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-28 20:23:34,430 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-28 20:23:34,431 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-28 20:23:34,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-28 20:23:34,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-28 20:23:34,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-28 20:23:34,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-28 20:23:34,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-28 20:23:34,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-28 20:23:34,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-28 20:23:34,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-28 20:23:34,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-28 20:23:34,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-28 20:23:34,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-28 20:23:34,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-28 20:23:34,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-28 20:23:34,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-28 20:23:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-28 20:23:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-28 20:23:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-28 20:23:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-28 20:23:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-28 20:23:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2023-11-28 20:23:34,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2023-11-28 20:23:34,434 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2023-11-28 20:23:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2023-11-28 20:23:34,435 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2023-11-28 20:23:34,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2023-11-28 20:23:34,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-28 20:23:34,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-28 20:23:34,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-28 20:23:34,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-28 20:23:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-28 20:23:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-28 20:23:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-28 20:23:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-28 20:23:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-28 20:23:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-28 20:23:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-28 20:23:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-28 20:23:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-28 20:23:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-28 20:23:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-28 20:23:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioctl [2023-11-28 20:23:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioctl [2023-11-28 20:23:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-28 20:23:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-28 20:23:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-28 20:23:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-28 20:23:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-28 20:23:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-28 20:23:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-28 20:23:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-28 20:23:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-28 20:23:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-28 20:23:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-28 20:23:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-28 20:23:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-28 20:23:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-28 20:23:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-28 20:23:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-28 20:23:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-28 20:23:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-28 20:23:34,439 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-28 20:23:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-28 20:23:34,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-28 20:23:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-28 20:23:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-28 20:23:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-28 20:23:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-28 20:23:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-28 20:23:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-28 20:23:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-28 20:23:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-28 20:23:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-28 20:23:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-28 20:23:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-28 20:23:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2023-11-28 20:23:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2023-11-28 20:23:34,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2023-11-28 20:23:34,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2023-11-28 20:23:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-28 20:23:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-28 20:23:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-28 20:23:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-28 20:23:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-28 20:23:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-28 20:23:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-28 20:23:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-28 20:23:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-28 20:23:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-28 20:23:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-28 20:23:34,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2023-11-28 20:23:34,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2023-11-28 20:23:34,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2023-11-28 20:23:34,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2023-11-28 20:23:34,444 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-28 20:23:34,444 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-28 20:23:34,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-28 20:23:34,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-28 20:23:34,444 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-28 20:23:34,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-28 20:23:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-28 20:23:34,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-28 20:23:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-28 20:23:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-28 20:23:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-28 20:23:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-28 20:23:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-28 20:23:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-28 20:23:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-28 20:23:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-28 20:23:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-28 20:23:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-28 20:23:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-28 20:23:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-28 20:23:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-28 20:23:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-28 20:23:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-28 20:23:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-28 20:23:34,447 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-28 20:23:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-28 20:23:34,447 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-28 20:23:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-28 20:23:34,447 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-28 20:23:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-28 20:23:34,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-28 20:23:34,448 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2023-11-28 20:23:34,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2023-11-28 20:23:34,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-28 20:23:34,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-28 20:23:34,448 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2023-11-28 20:23:34,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2023-11-28 20:23:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 20:23:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2023-11-28 20:23:34,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2023-11-28 20:23:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-28 20:23:34,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-28 20:23:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2023-11-28 20:23:34,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2023-11-28 20:23:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:23:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-28 20:23:34,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-28 20:23:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-28 20:23:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-28 20:23:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-28 20:23:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-28 20:23:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-28 20:23:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-28 20:23:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-28 20:23:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-28 20:23:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-28 20:23:34,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-28 20:23:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-28 20:23:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-28 20:23:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-28 20:23:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-28 20:23:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-28 20:23:34,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-28 20:23:34,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-28 20:23:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-28 20:23:34,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-28 20:23:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2023-11-28 20:23:34,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2023-11-28 20:23:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-28 20:23:34,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-28 20:23:34,453 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2023-11-28 20:23:34,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2023-11-28 20:23:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-28 20:23:34,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-28 20:23:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-28 20:23:34,454 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-28 20:23:34,454 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2023-11-28 20:23:34,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2023-11-28 20:23:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-28 20:23:34,455 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-28 20:23:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2023-11-28 20:23:34,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2023-11-28 20:23:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-28 20:23:34,455 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-28 20:23:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_change_mtu [2023-11-28 20:23:34,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_change_mtu [2023-11-28 20:23:34,456 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-28 20:23:34,456 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-28 20:23:34,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:23:34,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 20:23:34,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 20:23:34,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-28 20:23:34,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-28 20:23:34,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-28 20:23:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-28 20:23:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-28 20:23:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-28 20:23:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-28 20:23:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-28 20:23:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-28 20:23:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-28 20:23:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-28 20:23:34,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-28 20:23:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2023-11-28 20:23:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2023-11-28 20:23:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2023-11-28 20:23:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2023-11-28 20:23:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-28 20:23:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-28 20:23:34,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:23:34,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:23:35,256 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:23:35,260 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:23:37,229 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-28 20:23:42,216 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:23:42,463 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:23:42,463 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-28 20:23:42,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:23:42 BoogieIcfgContainer [2023-11-28 20:23:42,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:23:42,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:23:42,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:23:42,470 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:23:42,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:23:30" (1/3) ... [2023-11-28 20:23:42,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:23:42, skipping insertion in model container [2023-11-28 20:23:42,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:32" (2/3) ... [2023-11-28 20:23:42,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:23:42, skipping insertion in model container [2023-11-28 20:23:42,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:23:42" (3/3) ... [2023-11-28 20:23:42,473 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2023-11-28 20:23:42,490 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:23:42,490 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:23:42,626 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:23:42,633 INFO L357 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, mHoare=true, 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;@2022124d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:23:42,634 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:23:42,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 1515 states, 1052 states have (on average 1.4629277566539924) internal successors, (1539), 1080 states have internal predecessors, (1539), 379 states have call successors, (379), 85 states have call predecessors, (379), 84 states have return successors, (371), 371 states have call predecessors, (371), 371 states have call successors, (371) [2023-11-28 20:23:42,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-28 20:23:42,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:42,676 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-28 20:23:42,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:42,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:42,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1952186843, now seen corresponding path program 1 times [2023-11-28 20:23:42,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:42,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72924164] [2023-11-28 20:23:42,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:42,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:23:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:23:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:23:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:23:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:23:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:23:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:23:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:23:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:23:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-28 20:23:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 20:23:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 20:23:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,568 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-28 20:23:43,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:43,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72924164] [2023-11-28 20:23:43,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72924164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:43,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:23:43,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:23:43,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263205925] [2023-11-28 20:23:43,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:43,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:43,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:43,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:43,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:23:43,618 INFO L87 Difference]: Start difference. First operand has 1515 states, 1052 states have (on average 1.4629277566539924) internal successors, (1539), 1080 states have internal predecessors, (1539), 379 states have call successors, (379), 85 states have call predecessors, (379), 84 states have return successors, (371), 371 states have call predecessors, (371), 371 states have call successors, (371) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-28 20:23:55,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:23:57,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:57,106 INFO L93 Difference]: Finished difference Result 3295 states and 5117 transitions. [2023-11-28 20:23:57,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:23:57,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2023-11-28 20:23:57,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:57,141 INFO L225 Difference]: With dead ends: 3295 [2023-11-28 20:23:57,141 INFO L226 Difference]: Without dead ends: 1769 [2023-11-28 20:23:57,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:23:57,164 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 2323 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 4037 mSolverCounterSat, 994 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 5031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 994 IncrementalHoareTripleChecker+Valid, 4037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:57,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2503 Valid, 1537 Invalid, 5031 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [994 Valid, 4037 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2023-11-28 20:23:57,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2023-11-28 20:23:57,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1495. [2023-11-28 20:23:57,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1042 states have (on average 1.4222648752399232) internal successors, (1482), 1059 states have internal predecessors, (1482), 369 states have call successors, (369), 84 states have call predecessors, (369), 83 states have return successors, (368), 368 states have call predecessors, (368), 368 states have call successors, (368) [2023-11-28 20:23:57,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2219 transitions. [2023-11-28 20:23:57,359 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2219 transitions. Word has length 102 [2023-11-28 20:23:57,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:57,360 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 2219 transitions. [2023-11-28 20:23:57,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-28 20:23:57,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2219 transitions. [2023-11-28 20:23:57,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-28 20:23:57,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:57,369 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-28 20:23:57,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:23:57,370 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:57,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:57,371 INFO L85 PathProgramCache]: Analyzing trace with hash -2015254739, now seen corresponding path program 1 times [2023-11-28 20:23:57,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:57,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107462458] [2023-11-28 20:23:57,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:57,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:57,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:57,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:57,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:23:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:57,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:23:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:57,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:57,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:23:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:58,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:23:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:58,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:58,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:23:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:23:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:58,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:23:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:58,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:23:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:58,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:23:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:58,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-28 20:23:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:58,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 20:23:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:58,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 20:23:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:58,137 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-28 20:23:58,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:58,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107462458] [2023-11-28 20:23:58,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107462458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:58,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:23:58,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-28 20:23:58,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939619875] [2023-11-28 20:23:58,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:58,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:23:58,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:58,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:23:58,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:23:58,143 INFO L87 Difference]: Start difference. First operand 1495 states and 2219 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:24:03,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:15,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:18,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:22,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:23,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:24:23,567 INFO L93 Difference]: Finished difference Result 5006 states and 7600 transitions. [2023-11-28 20:24:23,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 20:24:23,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2023-11-28 20:24:23,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:24:23,590 INFO L225 Difference]: With dead ends: 5006 [2023-11-28 20:24:23,590 INFO L226 Difference]: Without dead ends: 3527 [2023-11-28 20:24:23,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:24:23,599 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 7577 mSDsluCounter, 1962 mSDsCounter, 0 mSdLazyCounter, 8581 mSolverCounterSat, 4040 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7853 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 12621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4040 IncrementalHoareTripleChecker+Valid, 8581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:24:23,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7853 Valid, 2504 Invalid, 12621 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4040 Valid, 8581 Invalid, 0 Unknown, 0 Unchecked, 24.6s Time] [2023-11-28 20:24:23,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3527 states. [2023-11-28 20:24:23,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3527 to 2990. [2023-11-28 20:24:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2990 states, 2083 states have (on average 1.4219875180028805) internal successors, (2962), 2123 states have internal predecessors, (2962), 736 states have call successors, (736), 167 states have call predecessors, (736), 170 states have return successors, (757), 733 states have call predecessors, (757), 735 states have call successors, (757) [2023-11-28 20:24:23,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 4455 transitions. [2023-11-28 20:24:23,819 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 4455 transitions. Word has length 102 [2023-11-28 20:24:23,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:24:23,820 INFO L495 AbstractCegarLoop]: Abstraction has 2990 states and 4455 transitions. [2023-11-28 20:24:23,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:24:23,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 4455 transitions. [2023-11-28 20:24:23,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-28 20:24:23,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:24:23,827 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-28 20:24:23,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:24:23,828 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:24:23,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:24:23,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1978446628, now seen corresponding path program 1 times [2023-11-28 20:24:23,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:24:23,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334401366] [2023-11-28 20:24:23,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:24:23,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:24:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:24:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:24:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:24:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:24:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:24:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:24:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:24:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:24:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:24:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:24:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:24:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:24:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:24:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:24:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 20:24:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-28 20:24:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 20:24:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-28 20:24:24,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:24:24,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334401366] [2023-11-28 20:24:24,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334401366] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:24:24,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:24:24,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-28 20:24:24,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017369071] [2023-11-28 20:24:24,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:24:24,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:24:24,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:24:24,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:24:24,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:24:24,493 INFO L87 Difference]: Start difference. First operand 2990 states and 4455 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:24:30,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:33,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:34,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:37,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:38,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:47,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:49,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:52,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:54,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:56,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:57,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:24:58,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:24:58,634 INFO L93 Difference]: Finished difference Result 10004 states and 15253 transitions. [2023-11-28 20:24:58,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 20:24:58,635 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2023-11-28 20:24:58,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:24:58,681 INFO L225 Difference]: With dead ends: 10004 [2023-11-28 20:24:58,681 INFO L226 Difference]: Without dead ends: 7030 [2023-11-28 20:24:58,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:24:58,695 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 7470 mSDsluCounter, 1950 mSDsCounter, 0 mSdLazyCounter, 8739 mSolverCounterSat, 4008 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7746 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 12747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4008 IncrementalHoareTripleChecker+Valid, 8739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:24:58,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7746 Valid, 2484 Invalid, 12747 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4008 Valid, 8739 Invalid, 0 Unknown, 0 Unchecked, 33.4s Time] [2023-11-28 20:24:58,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7030 states. [2023-11-28 20:24:58,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7030 to 6007. [2023-11-28 20:24:58,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6007 states, 4184 states have (on average 1.4211281070745698) internal successors, (5946), 4267 states have internal predecessors, (5946), 1474 states have call successors, (1474), 333 states have call predecessors, (1474), 348 states have return successors, (1583), 1474 states have call predecessors, (1583), 1473 states have call successors, (1583) [2023-11-28 20:24:58,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6007 states to 6007 states and 9003 transitions. [2023-11-28 20:24:58,999 INFO L78 Accepts]: Start accepts. Automaton has 6007 states and 9003 transitions. Word has length 103 [2023-11-28 20:24:58,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:24:58,999 INFO L495 AbstractCegarLoop]: Abstraction has 6007 states and 9003 transitions. [2023-11-28 20:24:59,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:24:59,000 INFO L276 IsEmpty]: Start isEmpty. Operand 6007 states and 9003 transitions. [2023-11-28 20:24:59,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-28 20:24:59,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:24:59,004 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-28 20:24:59,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:24:59,075 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:24:59,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:24:59,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1325227041, now seen corresponding path program 1 times [2023-11-28 20:24:59,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:24:59,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378675294] [2023-11-28 20:24:59,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:24:59,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:24:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:24:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:24:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:24:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:24:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:24:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:24:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:24:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:24:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:24:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:24:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:24:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:24:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:24:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:24:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 20:24:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 20:24:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-28 20:24:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-28 20:24:59,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:24:59,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378675294] [2023-11-28 20:24:59,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378675294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:24:59,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:24:59,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-28 20:24:59,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35315914] [2023-11-28 20:24:59,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:24:59,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:24:59,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:24:59,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:24:59,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:24:59,561 INFO L87 Difference]: Start difference. First operand 6007 states and 9003 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:25:04,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:25:08,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:25:21,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:25:23,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:25:24,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:25:24,303 INFO L93 Difference]: Finished difference Result 20035 states and 30691 transitions. [2023-11-28 20:25:24,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 20:25:24,303 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2023-11-28 20:25:24,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:25:24,401 INFO L225 Difference]: With dead ends: 20035 [2023-11-28 20:25:24,401 INFO L226 Difference]: Without dead ends: 14044 [2023-11-28 20:25:24,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:25:24,427 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 6343 mSDsluCounter, 2260 mSDsCounter, 0 mSdLazyCounter, 9504 mSolverCounterSat, 2980 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6618 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 12484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2980 IncrementalHoareTripleChecker+Valid, 9504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2023-11-28 20:25:24,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6618 Valid, 2792 Invalid, 12484 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2980 Valid, 9504 Invalid, 0 Unknown, 0 Unchecked, 23.8s Time] [2023-11-28 20:25:24,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14044 states. [2023-11-28 20:25:25,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14044 to 12003. [2023-11-28 20:25:25,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12003 states, 8366 states have (on average 1.4205115945493665) internal successors, (11884), 8530 states have internal predecessors, (11884), 2939 states have call successors, (2939), 666 states have call predecessors, (2939), 697 states have return successors, (3246), 2942 states have call predecessors, (3246), 2938 states have call successors, (3246) [2023-11-28 20:25:25,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12003 states to 12003 states and 18069 transitions. [2023-11-28 20:25:25,251 INFO L78 Accepts]: Start accepts. Automaton has 12003 states and 18069 transitions. Word has length 105 [2023-11-28 20:25:25,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:25:25,252 INFO L495 AbstractCegarLoop]: Abstraction has 12003 states and 18069 transitions. [2023-11-28 20:25:25,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:25:25,252 INFO L276 IsEmpty]: Start isEmpty. Operand 12003 states and 18069 transitions. [2023-11-28 20:25:25,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-28 20:25:25,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:25:25,256 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-28 20:25:25,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 20:25:25,256 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:25:25,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:25:25,257 INFO L85 PathProgramCache]: Analyzing trace with hash 939236752, now seen corresponding path program 1 times [2023-11-28 20:25:25,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:25:25,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348955813] [2023-11-28 20:25:25,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:25,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:25:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:25:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:25:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:25:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:25:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:25:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:25:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:25:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:25:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:25:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:25:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:25:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:25:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:25:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:25:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 20:25:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-28 20:25:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-28 20:25:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:25,801 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-28 20:25:25,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:25:25,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348955813] [2023-11-28 20:25:25,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348955813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:25:25,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:25:25,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-28 20:25:25,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311775610] [2023-11-28 20:25:25,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:25:25,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:25:25,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:25:25,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:25:25,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:25:25,803 INFO L87 Difference]: Start difference. First operand 12003 states and 18069 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:25:30,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:25:31,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:25:34,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:25:43,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:25:46,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:25:47,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:25:52,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:25:53,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:25:55,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:25:55,503 INFO L93 Difference]: Finished difference Result 39452 states and 60630 transitions. [2023-11-28 20:25:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 20:25:55,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 104 [2023-11-28 20:25:55,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:25:55,678 INFO L225 Difference]: With dead ends: 39452 [2023-11-28 20:25:55,679 INFO L226 Difference]: Without dead ends: 27465 [2023-11-28 20:25:55,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:25:55,726 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 6331 mSDsluCounter, 2260 mSDsCounter, 0 mSdLazyCounter, 9529 mSolverCounterSat, 2978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6606 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 12507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2978 IncrementalHoareTripleChecker+Valid, 9529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:25:55,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6606 Valid, 2792 Invalid, 12507 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2978 Valid, 9529 Invalid, 0 Unknown, 0 Unchecked, 28.3s Time] [2023-11-28 20:25:55,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27465 states. [2023-11-28 20:25:56,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27465 to 23619. [2023-11-28 20:25:57,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23619 states, 16449 states have (on average 1.4177761566052647) internal successors, (23321), 16766 states have internal predecessors, (23321), 5783 states have call successors, (5783), 1323 states have call predecessors, (5783), 1386 states have return successors, (6588), 5794 states have call predecessors, (6588), 5782 states have call successors, (6588) [2023-11-28 20:25:57,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23619 states to 23619 states and 35692 transitions. [2023-11-28 20:25:57,109 INFO L78 Accepts]: Start accepts. Automaton has 23619 states and 35692 transitions. Word has length 104 [2023-11-28 20:25:57,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:25:57,109 INFO L495 AbstractCegarLoop]: Abstraction has 23619 states and 35692 transitions. [2023-11-28 20:25:57,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:25:57,110 INFO L276 IsEmpty]: Start isEmpty. Operand 23619 states and 35692 transitions. [2023-11-28 20:25:57,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-28 20:25:57,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:25:57,115 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:25:57,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 20:25:57,115 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:25:57,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:25:57,116 INFO L85 PathProgramCache]: Analyzing trace with hash -452220501, now seen corresponding path program 1 times [2023-11-28 20:25:57,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:25:57,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395568205] [2023-11-28 20:25:57,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:57,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:25:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:25:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:25:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:25:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:25:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:25:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:25:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:25:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:25:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:25:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:25:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:25:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:25:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:25:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:25:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-28 20:25:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 20:25:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-28 20:25:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-28 20:25:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:57,956 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-28 20:25:57,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:25:57,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395568205] [2023-11-28 20:25:57,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395568205] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:25:57,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307331496] [2023-11-28 20:25:57,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:57,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:25:57,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:25:57,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:25:57,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 20:25:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:58,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 2115 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:25:58,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:25:58,867 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-28 20:25:58,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:25:58,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307331496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:25:58,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:25:58,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2023-11-28 20:25:58,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879113403] [2023-11-28 20:25:58,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:25:58,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:25:58,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:25:58,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:25:58,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:25:58,871 INFO L87 Difference]: Start difference. First operand 23619 states and 35692 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-28 20:26:00,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:26:01,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:01,138 INFO L93 Difference]: Finished difference Result 23638 states and 35726 transitions. [2023-11-28 20:26:01,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:26:01,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2023-11-28 20:26:01,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:01,209 INFO L225 Difference]: With dead ends: 23638 [2023-11-28 20:26:01,209 INFO L226 Difference]: Without dead ends: 23635 [2023-11-28 20:26:01,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:26:01,218 INFO L413 NwaCegarLoop]: 2087 mSDtfsCounter, 0 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4169 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:01,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4169 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-28 20:26:01,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23635 states. [2023-11-28 20:26:02,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23635 to 23635. [2023-11-28 20:26:02,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23635 states, 16465 states have (on average 1.417370179167932) internal successors, (23337), 16782 states have internal predecessors, (23337), 5783 states have call successors, (5783), 1323 states have call predecessors, (5783), 1386 states have return successors, (6588), 5794 states have call predecessors, (6588), 5782 states have call successors, (6588) [2023-11-28 20:26:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23635 states to 23635 states and 35708 transitions. [2023-11-28 20:26:02,539 INFO L78 Accepts]: Start accepts. Automaton has 23635 states and 35708 transitions. Word has length 115 [2023-11-28 20:26:02,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:02,539 INFO L495 AbstractCegarLoop]: Abstraction has 23635 states and 35708 transitions. [2023-11-28 20:26:02,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-28 20:26:02,540 INFO L276 IsEmpty]: Start isEmpty. Operand 23635 states and 35708 transitions. [2023-11-28 20:26:02,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-28 20:26:02,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:02,546 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:02,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:26:02,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-28 20:26:02,747 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:26:02,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:02,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1299280208, now seen corresponding path program 1 times [2023-11-28 20:26:02,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:02,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881974909] [2023-11-28 20:26:02,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:02,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:26:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:26:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:26:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:26:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:26:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-28 20:26:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 20:26:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-28 20:26:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-28 20:26:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:03,699 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-28 20:26:03,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:03,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881974909] [2023-11-28 20:26:03,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881974909] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:26:03,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924360752] [2023-11-28 20:26:03,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:03,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:03,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:03,701 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:03,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 20:26:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:04,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 2120 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:26:04,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:04,736 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-28 20:26:04,736 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:26:04,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924360752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:04,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:26:04,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2023-11-28 20:26:04,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10368273] [2023-11-28 20:26:04,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:04,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:26:04,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:04,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:26:04,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-28 20:26:04,738 INFO L87 Difference]: Start difference. First operand 23635 states and 35708 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 20:26:08,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:26:11,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:26:13,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:13,028 INFO L93 Difference]: Finished difference Result 59059 states and 89344 transitions. [2023-11-28 20:26:13,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 20:26:13,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2023-11-28 20:26:13,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:13,164 INFO L225 Difference]: With dead ends: 59059 [2023-11-28 20:26:13,164 INFO L226 Difference]: Without dead ends: 35440 [2023-11-28 20:26:13,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2023-11-28 20:26:13,231 INFO L413 NwaCegarLoop]: 2750 mSDtfsCounter, 2244 mSDsluCounter, 13068 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 15818 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:13,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2248 Valid, 15818 Invalid, 984 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-11-28 20:26:13,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35440 states. [2023-11-28 20:26:14,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35440 to 35291. [2023-11-28 20:26:14,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35291 states, 24588 states have (on average 1.4172360501057426) internal successors, (34847), 25070 states have internal predecessors, (34847), 8623 states have call successors, (8623), 1976 states have call predecessors, (8623), 2079 states have return successors, (10014), 8638 states have call predecessors, (10014), 8622 states have call successors, (10014) [2023-11-28 20:26:14,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35291 states to 35291 states and 53484 transitions. [2023-11-28 20:26:14,914 INFO L78 Accepts]: Start accepts. Automaton has 35291 states and 53484 transitions. Word has length 117 [2023-11-28 20:26:14,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:14,915 INFO L495 AbstractCegarLoop]: Abstraction has 35291 states and 53484 transitions. [2023-11-28 20:26:14,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 20:26:14,915 INFO L276 IsEmpty]: Start isEmpty. Operand 35291 states and 53484 transitions. [2023-11-28 20:26:14,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-28 20:26:14,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:14,922 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:14,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-28 20:26:15,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-28 20:26:15,123 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:26:15,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:15,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1278712230, now seen corresponding path program 1 times [2023-11-28 20:26:15,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:15,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161774101] [2023-11-28 20:26:15,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:15,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:26:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:26:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:26:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:26:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:15,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:26:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:16,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:26:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-28 20:26:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:16,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-28 20:26:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:16,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 20:26:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:16,093 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-28 20:26:16,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:16,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161774101] [2023-11-28 20:26:16,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161774101] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:26:16,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16185904] [2023-11-28 20:26:16,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:16,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:16,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:16,096 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:16,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 20:26:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:16,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 2122 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:26:16,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:17,036 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-28 20:26:17,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:26:17,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16185904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:17,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:26:17,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2023-11-28 20:26:17,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092708483] [2023-11-28 20:26:17,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:17,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:26:17,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:17,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:26:17,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-28 20:26:17,038 INFO L87 Difference]: Start difference. First operand 35291 states and 53484 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 20:26:19,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:26:22,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:26:23,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:26:25,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:26:27,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:27,508 INFO L93 Difference]: Finished difference Result 82424 states and 124942 transitions. [2023-11-28 20:26:27,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 20:26:27,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2023-11-28 20:26:27,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:27,744 INFO L225 Difference]: With dead ends: 82424 [2023-11-28 20:26:27,744 INFO L226 Difference]: Without dead ends: 47149 [2023-11-28 20:26:27,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:26:27,873 INFO L413 NwaCegarLoop]: 2853 mSDtfsCounter, 2241 mSDsluCounter, 13468 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2245 SdHoareTripleChecker+Valid, 16321 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:27,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2245 Valid, 16321 Invalid, 1015 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-11-28 20:26:27,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47149 states. [2023-11-28 20:26:29,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47149 to 46979. [2023-11-28 20:26:29,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46979 states, 32731 states have (on average 1.4169136292811098) internal successors, (46377), 33394 states have internal predecessors, (46377), 11463 states have call successors, (11463), 2629 states have call predecessors, (11463), 2784 states have return successors, (13452), 11478 states have call predecessors, (13452), 11462 states have call successors, (13452) [2023-11-28 20:26:29,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46979 states to 46979 states and 71292 transitions. [2023-11-28 20:26:29,981 INFO L78 Accepts]: Start accepts. Automaton has 46979 states and 71292 transitions. Word has length 118 [2023-11-28 20:26:29,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:29,981 INFO L495 AbstractCegarLoop]: Abstraction has 46979 states and 71292 transitions. [2023-11-28 20:26:29,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 20:26:29,981 INFO L276 IsEmpty]: Start isEmpty. Operand 46979 states and 71292 transitions. [2023-11-28 20:26:29,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-28 20:26:29,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:29,989 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:30,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 20:26:30,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:30,190 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:26:30,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:30,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1853353719, now seen corresponding path program 1 times [2023-11-28 20:26:30,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:30,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871365153] [2023-11-28 20:26:30,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:30,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:30,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:30,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:30,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:30,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:26:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:30,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:30,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:30,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:26:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:31,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:31,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:31,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:26:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:31,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:31,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:31,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:26:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:31,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:26:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:31,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 20:26:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:31,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 20:26:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-28 20:26:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:31,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-28 20:26:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:31,252 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-28 20:26:31,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:31,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871365153] [2023-11-28 20:26:31,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871365153] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:26:31,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279811069] [2023-11-28 20:26:31,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:31,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:31,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:31,255 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:31,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 20:26:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:32,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 2124 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:26:32,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:32,426 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-28 20:26:32,426 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:26:32,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279811069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:32,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:26:32,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2023-11-28 20:26:32,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741454228] [2023-11-28 20:26:32,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:32,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:26:32,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:32,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:26:32,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-28 20:26:32,430 INFO L87 Difference]: Start difference. First operand 46979 states and 71292 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 20:26:37,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:26:38,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:26:41,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:41,442 INFO L93 Difference]: Finished difference Result 105789 states and 160540 transitions. [2023-11-28 20:26:41,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 20:26:41,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2023-11-28 20:26:41,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:41,697 INFO L225 Difference]: With dead ends: 105789 [2023-11-28 20:26:41,697 INFO L226 Difference]: Without dead ends: 58826 [2023-11-28 20:26:41,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:26:41,822 INFO L413 NwaCegarLoop]: 3222 mSDtfsCounter, 2242 mSDsluCounter, 14944 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2246 SdHoareTripleChecker+Valid, 18166 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:41,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2246 Valid, 18166 Invalid, 1100 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-11-28 20:26:41,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58826 states. [2023-11-28 20:26:44,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58826 to 47001. [2023-11-28 20:26:44,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47001 states, 32747 states have (on average 1.4167099276269581) internal successors, (46393), 33412 states have internal predecessors, (46393), 11463 states have call successors, (11463), 2629 states have call predecessors, (11463), 2790 states have return successors, (13461), 11482 states have call predecessors, (13461), 11462 states have call successors, (13461) [2023-11-28 20:26:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47001 states to 47001 states and 71317 transitions. [2023-11-28 20:26:44,397 INFO L78 Accepts]: Start accepts. Automaton has 47001 states and 71317 transitions. Word has length 119 [2023-11-28 20:26:44,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:44,397 INFO L495 AbstractCegarLoop]: Abstraction has 47001 states and 71317 transitions. [2023-11-28 20:26:44,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 20:26:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand 47001 states and 71317 transitions. [2023-11-28 20:26:44,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-28 20:26:44,407 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:44,408 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:44,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 20:26:44,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:44,609 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:26:44,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash 453657933, now seen corresponding path program 1 times [2023-11-28 20:26:44,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:44,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551544223] [2023-11-28 20:26:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:44,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:26:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:26:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:26:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:26:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:26:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 20:26:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-28 20:26:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-28 20:26:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 20:26:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:45,276 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-28 20:26:45,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:45,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551544223] [2023-11-28 20:26:45,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551544223] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:26:45,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029862329] [2023-11-28 20:26:45,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:45,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:45,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:45,279 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:45,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 20:26:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:46,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:26:46,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:46,342 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-28 20:26:46,343 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:26:46,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029862329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:46,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:26:46,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2023-11-28 20:26:46,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071757450] [2023-11-28 20:26:46,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:46,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:26:46,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:46,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:26:46,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-28 20:26:46,345 INFO L87 Difference]: Start difference. First operand 47001 states and 71317 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 20:26:51,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:26:54,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:54,688 INFO L93 Difference]: Finished difference Result 105819 states and 160573 transitions. [2023-11-28 20:26:54,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 20:26:54,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2023-11-28 20:26:54,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:54,898 INFO L225 Difference]: With dead ends: 105819 [2023-11-28 20:26:54,898 INFO L226 Difference]: Without dead ends: 58834 [2023-11-28 20:26:55,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:26:55,006 INFO L413 NwaCegarLoop]: 3083 mSDtfsCounter, 2242 mSDsluCounter, 14387 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2246 SdHoareTripleChecker+Valid, 17470 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:55,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2246 Valid, 17470 Invalid, 1055 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1053 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-28 20:26:55,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58834 states. [2023-11-28 20:26:56,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58834 to 47014. [2023-11-28 20:26:57,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47014 states, 32757 states have (on average 1.4165827151448545) internal successors, (46403), 33421 states have internal predecessors, (46403), 11463 states have call successors, (11463), 2629 states have call predecessors, (11463), 2793 states have return successors, (13464), 11486 states have call predecessors, (13464), 11462 states have call successors, (13464) [2023-11-28 20:26:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47014 states to 47014 states and 71330 transitions. [2023-11-28 20:26:57,213 INFO L78 Accepts]: Start accepts. Automaton has 47014 states and 71330 transitions. Word has length 120 [2023-11-28 20:26:57,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:57,214 INFO L495 AbstractCegarLoop]: Abstraction has 47014 states and 71330 transitions. [2023-11-28 20:26:57,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-28 20:26:57,214 INFO L276 IsEmpty]: Start isEmpty. Operand 47014 states and 71330 transitions. [2023-11-28 20:26:57,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-28 20:26:57,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:57,224 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-28 20:26:57,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-28 20:26:57,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-28 20:26:57,425 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:26:57,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:57,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1911886845, now seen corresponding path program 1 times [2023-11-28 20:26:57,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:57,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772957281] [2023-11-28 20:26:57,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:57,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:57,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:57,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:57,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:57,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:26:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:57,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:57,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:57,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:26:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:57,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:57,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:26:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:26:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:26:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:26:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 20:26:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-28 20:26:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 20:26:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-28 20:26:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-28 20:26:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-28 20:26:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-28 20:26:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-28 20:26:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:58,143 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-28 20:26:58,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:58,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772957281] [2023-11-28 20:26:58,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772957281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:58,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:26:58,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 20:26:58,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297764492] [2023-11-28 20:26:58,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:58,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:26:58,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:58,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:26:58,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:26:58,147 INFO L87 Difference]: Start difference. First operand 47014 states and 71330 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 20:27:02,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:27:03,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:27:11,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:27:16,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:27:17,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:17,389 INFO L93 Difference]: Finished difference Result 113797 states and 174080 transitions. [2023-11-28 20:27:17,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 20:27:17,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 137 [2023-11-28 20:27:17,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:17,619 INFO L225 Difference]: With dead ends: 113797 [2023-11-28 20:27:17,619 INFO L226 Difference]: Without dead ends: 66799 [2023-11-28 20:27:17,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:27:17,880 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 4504 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 6858 mSolverCounterSat, 2258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4722 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 9116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2258 IncrementalHoareTripleChecker+Valid, 6858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:17,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4722 Valid, 1629 Invalid, 9116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2258 Valid, 6858 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2023-11-28 20:27:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66799 states. [2023-11-28 20:27:20,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66799 to 59130. [2023-11-28 20:27:20,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59130 states, 40918 states have (on average 1.4023901461459505) internal successors, (57383), 41611 states have internal predecessors, (57383), 14329 states have call successors, (14329), 3718 states have call predecessors, (14329), 3882 states have return successors, (16330), 14352 states have call predecessors, (16330), 14328 states have call successors, (16330) [2023-11-28 20:27:20,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59130 states to 59130 states and 88042 transitions. [2023-11-28 20:27:20,539 INFO L78 Accepts]: Start accepts. Automaton has 59130 states and 88042 transitions. Word has length 137 [2023-11-28 20:27:20,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:20,540 INFO L495 AbstractCegarLoop]: Abstraction has 59130 states and 88042 transitions. [2023-11-28 20:27:20,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 20:27:20,540 INFO L276 IsEmpty]: Start isEmpty. Operand 59130 states and 88042 transitions. [2023-11-28 20:27:20,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-28 20:27:20,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:20,559 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:27:20,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 20:27:20,559 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:27:20,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:20,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1185261989, now seen corresponding path program 1 times [2023-11-28 20:27:20,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:27:20,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174561828] [2023-11-28 20:27:20,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:20,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:27:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:27:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:27:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:27:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:27:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:27:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:27:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-28 20:27:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 20:27:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-28 20:27:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-28 20:27:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-28 20:27:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-28 20:27:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-28 20:27:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-28 20:27:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-28 20:27:21,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:27:21,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174561828] [2023-11-28 20:27:21,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174561828] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:27:21,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322323989] [2023-11-28 20:27:21,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:21,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:27:21,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:27:21,676 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:27:21,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 20:27:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:22,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 2343 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:27:22,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:27:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-28 20:27:22,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:27:22,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322323989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:27:22,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:27:22,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2023-11-28 20:27:22,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38725068] [2023-11-28 20:27:22,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:27:22,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:27:22,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:27:22,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:27:22,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:27:22,516 INFO L87 Difference]: Start difference. First operand 59130 states and 88042 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 20:27:24,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:27:26,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:27:28,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:28,184 INFO L93 Difference]: Finished difference Result 118273 states and 176176 transitions. [2023-11-28 20:27:28,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:27:28,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 161 [2023-11-28 20:27:28,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:28,395 INFO L225 Difference]: With dead ends: 118273 [2023-11-28 20:27:28,395 INFO L226 Difference]: Without dead ends: 59159 [2023-11-28 20:27:28,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:27:28,522 INFO L413 NwaCegarLoop]: 2087 mSDtfsCounter, 0 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4169 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:28,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4169 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-28 20:27:28,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59159 states. [2023-11-28 20:27:30,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59159 to 59159. [2023-11-28 20:27:30,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59159 states, 40947 states have (on average 1.402105160329206) internal successors, (57412), 41640 states have internal predecessors, (57412), 14329 states have call successors, (14329), 3718 states have call predecessors, (14329), 3882 states have return successors, (16330), 14352 states have call predecessors, (16330), 14328 states have call successors, (16330) [2023-11-28 20:27:31,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59159 states to 59159 states and 88071 transitions. [2023-11-28 20:27:31,098 INFO L78 Accepts]: Start accepts. Automaton has 59159 states and 88071 transitions. Word has length 161 [2023-11-28 20:27:31,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:31,099 INFO L495 AbstractCegarLoop]: Abstraction has 59159 states and 88071 transitions. [2023-11-28 20:27:31,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-28 20:27:31,099 INFO L276 IsEmpty]: Start isEmpty. Operand 59159 states and 88071 transitions. [2023-11-28 20:27:31,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-28 20:27:31,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:31,127 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:27:31,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-28 20:27:31,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-28 20:27:31,328 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:27:31,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:31,328 INFO L85 PathProgramCache]: Analyzing trace with hash 505377958, now seen corresponding path program 1 times [2023-11-28 20:27:31,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:27:31,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687309310] [2023-11-28 20:27:31,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:31,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:27:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:27:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:27:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:27:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:27:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:27:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:27:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-28 20:27:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:31,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 20:27:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:32,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-28 20:27:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:32,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-28 20:27:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-28 20:27:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:32,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:32,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-28 20:27:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:32,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-28 20:27:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:32,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-28 20:27:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:32,044 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-28 20:27:32,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:27:32,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687309310] [2023-11-28 20:27:32,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687309310] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:27:32,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282604493] [2023-11-28 20:27:32,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:32,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:27:32,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:27:32,046 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:27:32,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 20:27:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:32,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 2344 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 20:27:32,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:27:33,105 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-28 20:27:33,105 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:27:33,701 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-28 20:27:33,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282604493] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:27:33,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:27:33,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2023-11-28 20:27:33,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735990774] [2023-11-28 20:27:33,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:27:33,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-28 20:27:33,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:27:33,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-28 20:27:33,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:27:33,705 INFO L87 Difference]: Start difference. First operand 59159 states and 88071 transitions. Second operand has 24 states, 24 states have (on average 5.75) internal successors, (138), 15 states have internal predecessors, (138), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2023-11-28 20:27:59,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:28:02,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:28:06,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:28:21,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:29:02,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:29:06,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:29:19,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:29:22,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:29:29,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:29:32,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:29:33,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:29:36,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:29:36,641 INFO L93 Difference]: Finished difference Result 175325 states and 264510 transitions. [2023-11-28 20:29:36,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2023-11-28 20:29:36,643 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.75) internal successors, (138), 15 states have internal predecessors, (138), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) Word has length 162 [2023-11-28 20:29:36,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:29:37,036 INFO L225 Difference]: With dead ends: 175325 [2023-11-28 20:29:37,037 INFO L226 Difference]: Without dead ends: 115986 [2023-11-28 20:29:37,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 374 SyntacticMatches, 8 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8880 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=3589, Invalid=19061, Unknown=0, NotChecked=0, Total=22650 [2023-11-28 20:29:37,183 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 22207 mSDsluCounter, 7883 mSDsCounter, 0 mSdLazyCounter, 72727 mSolverCounterSat, 10354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22505 SdHoareTripleChecker+Valid, 8429 SdHoareTripleChecker+Invalid, 83081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 10354 IncrementalHoareTripleChecker+Valid, 72727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:29:37,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22505 Valid, 8429 Invalid, 83081 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [10354 Valid, 72727 Invalid, 0 Unknown, 0 Unchecked, 104.6s Time] [2023-11-28 20:29:37,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115986 states. [2023-11-28 20:29:45,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115986 to 101908. [2023-11-28 20:29:45,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101908 states, 70451 states have (on average 1.4010305034704973) internal successors, (98704), 71639 states have internal predecessors, (98704), 24783 states have call successors, (24783), 6423 states have call predecessors, (24783), 6673 states have return successors, (28008), 24789 states have call predecessors, (28008), 24782 states have call successors, (28008) [2023-11-28 20:29:45,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101908 states to 101908 states and 151495 transitions. [2023-11-28 20:29:45,854 INFO L78 Accepts]: Start accepts. Automaton has 101908 states and 151495 transitions. Word has length 162 [2023-11-28 20:29:45,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:29:45,855 INFO L495 AbstractCegarLoop]: Abstraction has 101908 states and 151495 transitions. [2023-11-28 20:29:45,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.75) internal successors, (138), 15 states have internal predecessors, (138), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2023-11-28 20:29:45,855 INFO L276 IsEmpty]: Start isEmpty. Operand 101908 states and 151495 transitions. [2023-11-28 20:29:45,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-28 20:29:45,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:29:45,885 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:29:45,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-28 20:29:46,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-28 20:29:46,087 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:29:46,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:29:46,087 INFO L85 PathProgramCache]: Analyzing trace with hash 768726135, now seen corresponding path program 1 times [2023-11-28 20:29:46,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:29:46,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248601956] [2023-11-28 20:29:46,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:29:46,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:29:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:29:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:29:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:29:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:29:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:29:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:29:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:29:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:29:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:29:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:29:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:29:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:29:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:29:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:29:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-28 20:29:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 20:29:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-28 20:29:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 20:29:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-28 20:29:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-28 20:29:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:29:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-28 20:29:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-28 20:29:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-28 20:29:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:46,890 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-28 20:29:46,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:29:46,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248601956] [2023-11-28 20:29:46,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248601956] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:29:46,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692523544] [2023-11-28 20:29:46,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:29:46,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:29:46,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:29:46,892 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:29:46,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 20:29:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:29:47,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 2346 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 20:29:47,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:29:47,821 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-28 20:29:47,822 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:29:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-28 20:29:48,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692523544] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:29:48,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:29:48,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2023-11-28 20:29:48,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620071492] [2023-11-28 20:29:48,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:29:48,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-28 20:29:48,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:29:48,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-28 20:29:48,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:29:48,133 INFO L87 Difference]: Start difference. First operand 101908 states and 151495 transitions. Second operand has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 15 states have internal predecessors, (140), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2023-11-28 20:30:10,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:30:13,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:30:15,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:30:17,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:30:18,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:30:20,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:30:23,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:30:29,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:31:21,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:31:24,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:31:26,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:31:28,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:31:32,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:31:38,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:31:39,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:31:42,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:31:43,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:31:45,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:31:51,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:31:59,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:32:03,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:32:05,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:32:11,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:32:13,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:32:21,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:32:22,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:32:27,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:32:29,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:32:29,887 INFO L93 Difference]: Finished difference Result 295138 states and 443788 transitions. [2023-11-28 20:32:29,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2023-11-28 20:32:29,888 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 15 states have internal predecessors, (140), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) Word has length 163 [2023-11-28 20:32:29,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:32:30,763 INFO L225 Difference]: With dead ends: 295138 [2023-11-28 20:32:30,763 INFO L226 Difference]: Without dead ends: 192924 [2023-11-28 20:32:31,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 376 SyntacticMatches, 8 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9047 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=3589, Invalid=19061, Unknown=0, NotChecked=0, Total=22650 [2023-11-28 20:32:31,029 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 29014 mSDsluCounter, 9079 mSDsCounter, 0 mSdLazyCounter, 65089 mSolverCounterSat, 13713 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29312 SdHoareTripleChecker+Valid, 9689 SdHoareTripleChecker+Invalid, 78802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 13713 IncrementalHoareTripleChecker+Valid, 65089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 136.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:32:31,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29312 Valid, 9689 Invalid, 78802 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [13713 Valid, 65089 Invalid, 0 Unknown, 0 Unchecked, 136.0s Time] [2023-11-28 20:32:31,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192924 states. [2023-11-28 20:32:45,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192924 to 167094. [2023-11-28 20:32:45,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167094 states, 115388 states have (on average 1.399712275106597) internal successors, (161510), 117312 states have internal predecessors, (161510), 40733 states have call successors, (40733), 10604 states have call predecessors, (40733), 10972 states have return successors, (45549), 40717 states have call predecessors, (45549), 40732 states have call successors, (45549) [2023-11-28 20:32:46,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167094 states to 167094 states and 247792 transitions. [2023-11-28 20:32:46,368 INFO L78 Accepts]: Start accepts. Automaton has 167094 states and 247792 transitions. Word has length 163 [2023-11-28 20:32:46,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:32:46,369 INFO L495 AbstractCegarLoop]: Abstraction has 167094 states and 247792 transitions. [2023-11-28 20:32:46,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 15 states have internal predecessors, (140), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2023-11-28 20:32:46,369 INFO L276 IsEmpty]: Start isEmpty. Operand 167094 states and 247792 transitions. [2023-11-28 20:32:46,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-28 20:32:46,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:32:46,402 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:32:46,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-28 20:32:46,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-28 20:32:46,603 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:32:46,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:32:46,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1162051123, now seen corresponding path program 1 times [2023-11-28 20:32:46,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:32:46,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833418811] [2023-11-28 20:32:46,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:46,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:32:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:32:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:32:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:32:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:32:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:32:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:32:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 20:32:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-28 20:32:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 20:32:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-28 20:32:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-28 20:32:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-28 20:32:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:32:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-28 20:32:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-28 20:32:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-28 20:32:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:47,327 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-28 20:32:47,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:32:47,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833418811] [2023-11-28 20:32:47,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833418811] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:32:47,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389241828] [2023-11-28 20:32:47,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:32:47,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:32:47,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:32:47,328 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:32:47,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-28 20:32:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:32:48,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 2348 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 20:32:48,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:32:48,371 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-28 20:32:48,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:32:48,659 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-28 20:32:48,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389241828] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:32:48,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:32:48,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2023-11-28 20:32:48,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141693568] [2023-11-28 20:32:48,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:32:48,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-28 20:32:48,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:32:48,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-28 20:32:48,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:32:48,661 INFO L87 Difference]: Start difference. First operand 167094 states and 247792 transitions. Second operand has 24 states, 24 states have (on average 5.916666666666667) internal successors, (142), 15 states have internal predecessors, (142), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2023-11-28 20:33:08,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:33:11,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:33:13,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:33:39,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:34:12,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:34:14,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:34:17,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:34:40,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:34:40,289 INFO L93 Difference]: Finished difference Result 423326 states and 633659 transitions. [2023-11-28 20:34:40,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2023-11-28 20:34:40,290 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.916666666666667) internal successors, (142), 15 states have internal predecessors, (142), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) Word has length 164 [2023-11-28 20:34:40,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:34:41,279 INFO L225 Difference]: With dead ends: 423326 [2023-11-28 20:34:41,279 INFO L226 Difference]: Without dead ends: 255793 [2023-11-28 20:34:41,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 378 SyntacticMatches, 8 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9056 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=3589, Invalid=19061, Unknown=0, NotChecked=0, Total=22650 [2023-11-28 20:34:41,841 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 27066 mSDsluCounter, 6591 mSDsCounter, 0 mSdLazyCounter, 52026 mSolverCounterSat, 11767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27364 SdHoareTripleChecker+Valid, 7133 SdHoareTripleChecker+Invalid, 63793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 11767 IncrementalHoareTripleChecker+Valid, 52026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:34:41,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27364 Valid, 7133 Invalid, 63793 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [11767 Valid, 52026 Invalid, 0 Unknown, 0 Unchecked, 82.3s Time] [2023-11-28 20:34:42,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255793 states. [2023-11-28 20:35:00,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255793 to 219184. [2023-11-28 20:35:00,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219184 states, 151129 states have (on average 1.3979051009402563) internal successors, (211264), 153564 states have internal predecessors, (211264), 53628 states have call successors, (53628), 14017 states have call predecessors, (53628), 14426 states have return successors, (58896), 53608 states have call predecessors, (58896), 53627 states have call successors, (58896) [2023-11-28 20:35:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219184 states to 219184 states and 323788 transitions. [2023-11-28 20:35:01,651 INFO L78 Accepts]: Start accepts. Automaton has 219184 states and 323788 transitions. Word has length 164 [2023-11-28 20:35:01,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:35:01,651 INFO L495 AbstractCegarLoop]: Abstraction has 219184 states and 323788 transitions. [2023-11-28 20:35:01,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.916666666666667) internal successors, (142), 15 states have internal predecessors, (142), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2023-11-28 20:35:01,652 INFO L276 IsEmpty]: Start isEmpty. Operand 219184 states and 323788 transitions. [2023-11-28 20:35:01,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-28 20:35:01,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:35:01,672 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-28 20:35:01,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-28 20:35:01,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0385af9c-79ce-443f-8b32-191154f752ec/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-28 20:35:01,872 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:35:01,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:01,873 INFO L85 PathProgramCache]: Analyzing trace with hash -386844344, now seen corresponding path program 1 times [2023-11-28 20:35:01,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:01,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150605308] [2023-11-28 20:35:01,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:01,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:35:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:35:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:35:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 20:35:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:35:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:35:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:35:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:35:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:35:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:35:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:35:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:35:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:35:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:35:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 20:35:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:35:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:35:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-28 20:35:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-28 20:35:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-28 20:35:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-28 20:35:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-28 20:35:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:35:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-28 20:35:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-28 20:35:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-28 20:35:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:02,284 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-28 20:35:02,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:02,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150605308] [2023-11-28 20:35:02,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150605308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:02,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:02,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-28 20:35:02,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255497651] [2023-11-28 20:35:02,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:02,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:35:02,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:02,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:35:02,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:35:02,286 INFO L87 Difference]: Start difference. First operand 219184 states and 323788 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-28 20:35:06,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:35:07,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:35:17,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []