./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--atm--nicstar.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:29:08,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:29:08,724 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:29:08,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:29:08,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:29:08,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:29:08,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:29:08,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:29:08,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:29:08,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:29:08,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:29:08,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:29:08,764 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:29:08,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:29:08,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:29:08,765 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:29:08,766 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:29:08,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:29:08,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:29:08,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:29:08,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:29:08,769 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:29:08,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:29:08,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:29:08,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:29:08,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:29:08,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:29:08,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:29:08,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:29:08,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:29:08,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:29:08,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:29:08,774 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:29:08,774 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:29:08,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:29:08,775 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:29:08,775 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_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b [2023-11-06 22:29:09,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:29:09,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:29:09,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:29:09,080 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:29:09,080 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:29:09,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2023-11-06 22:29:12,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:29:12,965 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:29:12,966 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2023-11-06 22:29:13,028 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/data/35d74ddf5/af6bdb1c205541ba8aedc603f90358b7/FLAG8ccc972b2 [2023-11-06 22:29:13,047 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/data/35d74ddf5/af6bdb1c205541ba8aedc603f90358b7 [2023-11-06 22:29:13,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:29:13,060 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:29:13,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:29:13,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:29:13,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:29:13,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:29:13" (1/1) ... [2023-11-06 22:29:13,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536988e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:13, skipping insertion in model container [2023-11-06 22:29:13,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:29:13" (1/1) ... [2023-11-06 22:29:13,285 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:29:15,667 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_bc34cdc9-cb5a-4764-92b1-0405a199b398/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2023-11-06 22:29:15,720 WARN L635 FunctionHandler]: implicit declaration of function ldv_xmalloc [2023-11-06 22:29:15,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:29:15,778 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:29:15,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6371] [2023-11-06 22:29:15,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6373] [2023-11-06 22:29:15,909 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"); [6383] [2023-11-06 22:29:15,910 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)); [6390] [2023-11-06 22:29:15,913 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; addl %1,%0": "+m" (v->counter): "ir" (i)); [6520] [2023-11-06 22:29:15,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %1,%0": "+m" (v->counter): "ir" (i)); [6527] [2023-11-06 22:29:15,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [6534] [2023-11-06 22:29:15,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [6545] [2023-11-06 22:29:15,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6548] [2023-11-06 22:29:15,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6551] [2023-11-06 22:29:15,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6554] [2023-11-06 22:29:15,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6637] [2023-11-06 22:29:15,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6644] [2023-11-06 22:29:15,934 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)); [6838-6839] [2023-11-06 22:29:15,937 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)); [6867-6868] [2023-11-06 22:29:15,939 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" (108), "i" (12UL)); [6897-6898] [2023-11-06 22:29:16,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (& ((pool_levels *)arg)->buftype), "i" (4UL)); [10046-10047] [2023-11-06 22:29:16,301 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_bc34cdc9-cb5a-4764-92b1-0405a199b398/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2023-11-06 22:29:16,314 WARN L635 FunctionHandler]: implicit declaration of function ldv_xmalloc [2023-11-06 22:29:16,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:29:16,408 WARN L672 CHandler]: The function ldv_xmalloc is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:29:16,408 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:29:16,408 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:29:16,416 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:29:16,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16 WrapperNode [2023-11-06 22:29:16,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:29:16,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:29:16,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:29:16,419 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:29:16,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16" (1/1) ... [2023-11-06 22:29:16,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16" (1/1) ... [2023-11-06 22:29:16,911 INFO L138 Inliner]: procedures = 252, calls = 2387, calls flagged for inlining = 114, calls inlined = 111, statements flattened = 6910 [2023-11-06 22:29:16,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:29:16,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:29:16,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:29:16,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:29:16,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16" (1/1) ... [2023-11-06 22:29:16,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16" (1/1) ... [2023-11-06 22:29:17,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16" (1/1) ... [2023-11-06 22:29:17,003 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16" (1/1) ... [2023-11-06 22:29:17,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16" (1/1) ... [2023-11-06 22:29:17,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16" (1/1) ... [2023-11-06 22:29:17,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16" (1/1) ... [2023-11-06 22:29:17,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16" (1/1) ... [2023-11-06 22:29:17,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:29:17,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:29:17,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:29:17,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:29:17,334 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16" (1/1) ... [2023-11-06 22:29:17,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:29:17,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:29:17,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:29:17,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc34cdc9-cb5a-4764-92b1-0405a199b398/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:29:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure atm_charge [2023-11-06 22:29:17,419 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_charge [2023-11-06 22:29:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-11-06 22:29:17,419 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-11-06 22:29:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure process_tsq [2023-11-06 22:29:17,420 INFO L138 BoogieDeclarations]: Found implementation of procedure process_tsq [2023-11-06 22:29:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 22:29:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-11-06 22:29:17,421 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-11-06 22:29:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:29:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-06 22:29:17,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-06 22:29:17,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-06 22:29:17,423 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-06 22:29:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-11-06 22:29:17,425 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-11-06 22:29:17,425 INFO L130 BoogieDeclarations]: Found specification of procedure ns_open [2023-11-06 22:29:17,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_open [2023-11-06 22:29:17,426 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-06 22:29:17,426 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-06 22:29:17,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-06 22:29:17,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-06 22:29:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure ns_read_sram [2023-11-06 22:29:17,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_read_sram [2023-11-06 22:29:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure get_scq [2023-11-06 22:29:17,427 INFO L138 BoogieDeclarations]: Found implementation of procedure get_scq [2023-11-06 22:29:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 22:29:17,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 22:29:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_rx_buf [2023-11-06 22:29:17,428 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_rx_buf [2023-11-06 22:29:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-06 22:29:17,428 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-06 22:29:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 22:29:17,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 22:29:17,429 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2023-11-06 22:29:17,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2023-11-06 22:29:17,429 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-06 22:29:17,429 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-06 22:29:17,429 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-06 22:29:17,430 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-06 22:29:17,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 22:29:17,430 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 22:29:17,430 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:29:17,430 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:29:17,431 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-06 22:29:17,431 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-06 22:29:17,431 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioctl [2023-11-06 22:29:17,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioctl [2023-11-06 22:29:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-06 22:29:17,433 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-06 22:29:17,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:29:17,434 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-06 22:29:17,434 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-06 22:29:17,434 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-06 22:29:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure process_rsq [2023-11-06 22:29:17,435 INFO L138 BoogieDeclarations]: Found implementation of procedure process_rsq [2023-11-06 22:29:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:29:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-06 22:29:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-06 22:29:17,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-06 22:29:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-06 22:29:17,437 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-06 22:29:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2023-11-06 22:29:17,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2023-11-06 22:29:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:29:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-06 22:29:17,437 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-06 22:29:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2023-11-06 22:29:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2023-11-06 22:29:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:29:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure dequeue_sm_buf [2023-11-06 22:29:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure dequeue_sm_buf [2023-11-06 22:29:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 22:29:17,439 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 22:29:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-06 22:29:17,440 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-06 22:29:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-06 22:29:17,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-06 22:29:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-06 22:29:17,440 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-06 22:29:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure push_rxbufs [2023-11-06 22:29:17,441 INFO L138 BoogieDeclarations]: Found implementation of procedure push_rxbufs [2023-11-06 22:29:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-06 22:29:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_get [2023-11-06 22:29:17,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_get [2023-11-06 22:29:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-06 22:29:17,442 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-06 22:29:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-06 22:29:17,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-06 22:29:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2023-11-06 22:29:17,442 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2023-11-06 22:29:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 22:29:17,443 INFO L130 BoogieDeclarations]: Found specification of procedure ns_close [2023-11-06 22:29:17,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_close [2023-11-06 22:29:17,443 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-06 22:29:17,444 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-06 22:29:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-06 22:29:17,444 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-06 22:29:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:29:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-06 22:29:17,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-06 22:29:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_read_eprom [2023-11-06 22:29:17,446 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_read_eprom [2023-11-06 22:29:17,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-06 22:29:17,446 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-06 22:29:17,446 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_put [2023-11-06 22:29:17,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_put [2023-11-06 22:29:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-06 22:29:17,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-06 22:29:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iov_buf [2023-11-06 22:29:17,447 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iov_buf [2023-11-06 22:29:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-11-06 22:29:17,448 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-11-06 22:29:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-06 22:29:17,448 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-06 22:29:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:29:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-06 22:29:17,449 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-06 22:29:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-06 22:29:17,449 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-06 22:29:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure ns_send [2023-11-06 22:29:17,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_send [2023-11-06 22:29:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2023-11-06 22:29:17,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2023-11-06 22:29:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-06 22:29:17,451 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-06 22:29:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-06 22:29:17,451 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-06 22:29:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 22:29:17,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 22:29:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-06 22:29:17,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-06 22:29:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-06 22:29:17,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-06 22:29:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:29:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-06 22:29:17,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-06 22:29:17,458 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-06 22:29:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-06 22:29:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-06 22:29:17,460 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-06 22:29:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2023-11-06 22:29:17,461 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2023-11-06 22:29:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:29:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2023-11-06 22:29:17,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2023-11-06 22:29:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-06 22:29:17,468 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-06 22:29:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-06 22:29:17,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-06 22:29:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:29:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-06 22:29:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-06 22:29:17,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-06 22:29:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-06 22:29:17,469 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-06 22:29:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-06 22:29:17,469 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-06 22:29:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-06 22:29:17,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-06 22:29:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure free_scq [2023-11-06 22:29:17,470 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scq [2023-11-06 22:29:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2023-11-06 22:29:17,470 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2023-11-06 22:29:17,471 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2023-11-06 22:29:17,471 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2023-11-06 22:29:17,471 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iovec_rx_bufs [2023-11-06 22:29:17,471 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iovec_rx_bufs [2023-11-06 22:29:17,471 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-06 22:29:17,471 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-06 22:29:17,472 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_remove_one [2023-11-06 22:29:17,472 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_remove_one [2023-11-06 22:29:17,472 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2023-11-06 22:29:17,472 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2023-11-06 22:29:17,472 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-06 22:29:17,472 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-06 22:29:17,473 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-06 22:29:17,473 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-06 22:29:17,473 INFO L130 BoogieDeclarations]: Found specification of procedure ns_init_card_error [2023-11-06 22:29:17,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_init_card_error [2023-11-06 22:29:17,473 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-06 22:29:17,473 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-06 22:29:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-06 22:29:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-06 22:29:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-06 22:29:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-06 22:29:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure ns_write_sram [2023-11-06 22:29:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_write_sram [2023-11-06 22:29:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-06 22:29:17,475 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-06 22:29:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:29:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-06 22:29:17,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-06 22:29:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-06 22:29:17,476 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-06 22:29:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-06 22:29:17,476 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-06 22:29:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:29:17,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:29:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-06 22:29:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-06 22:29:18,463 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:29:18,467 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:29:19,567 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-06 22:29:26,815 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:29:26,853 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:29:26,853 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 22:29:26,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:29:26 BoogieIcfgContainer [2023-11-06 22:29:26,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:29:26,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:29:26,865 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:29:26,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:29:26,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:29:13" (1/3) ... [2023-11-06 22:29:26,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601ac276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:29:26, skipping insertion in model container [2023-11-06 22:29:26,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:16" (2/3) ... [2023-11-06 22:29:26,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601ac276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:29:26, skipping insertion in model container [2023-11-06 22:29:26,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:29:26" (3/3) ... [2023-11-06 22:29:26,874 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2023-11-06 22:29:26,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:29:26,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:29:27,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:29:27,058 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=LoopsAndPotentialCycles, 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;@1ab9e64d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:29:27,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:29:27,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 2396 states, 1687 states have (on average 1.4131594546532307) internal successors, (2384), 1758 states have internal predecessors, (2384), 621 states have call successors, (621), 91 states have call predecessors, (621), 90 states have return successors, (615), 604 states have call predecessors, (615), 615 states have call successors, (615) [2023-11-06 22:29:27,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-06 22:29:27,123 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:29:27,124 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:29:27,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:29:27,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:27,135 INFO L85 PathProgramCache]: Analyzing trace with hash 2104213778, now seen corresponding path program 1 times [2023-11-06 22:29:27,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:29:27,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732774359] [2023-11-06 22:29:27,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:27,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:29:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:27,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:29:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:27,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:27,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:27,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:29:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:29:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:29:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:29:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:29:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:29:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-06 22:29:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:29:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:28,352 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-06 22:29:28,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:29:28,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732774359] [2023-11-06 22:29:28,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732774359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:29:28,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:29:28,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:29:28,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658591296] [2023-11-06 22:29:28,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:29:28,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:29:28,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:29:28,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:29:28,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:29:28,418 INFO L87 Difference]: Start difference. First operand has 2396 states, 1687 states have (on average 1.4131594546532307) internal successors, (2384), 1758 states have internal predecessors, (2384), 621 states have call successors, (621), 91 states have call predecessors, (621), 90 states have return successors, (615), 604 states have call predecessors, (615), 615 states have call successors, (615) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-06 22:29:42,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:44,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:46,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:29:47,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:29:47,885 INFO L93 Difference]: Finished difference Result 5179 states and 8133 transitions. [2023-11-06 22:29:47,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:29:47,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 150 [2023-11-06 22:29:47,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:29:47,940 INFO L225 Difference]: With dead ends: 5179 [2023-11-06 22:29:47,940 INFO L226 Difference]: Without dead ends: 2764 [2023-11-06 22:29:47,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:29:47,978 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 1535 mSDsluCounter, 4112 mSDsCounter, 0 mSdLazyCounter, 4165 mSolverCounterSat, 1605 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1631 SdHoareTripleChecker+Valid, 6805 SdHoareTripleChecker+Invalid, 5773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1605 IncrementalHoareTripleChecker+Valid, 4165 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:29:47,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1631 Valid, 6805 Invalid, 5773 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1605 Valid, 4165 Invalid, 3 Unknown, 0 Unchecked, 18.8s Time] [2023-11-06 22:29:48,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2023-11-06 22:29:48,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2360. [2023-11-06 22:29:48,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2360 states, 1659 states have (on average 1.3954189270644968) internal successors, (2315), 1720 states have internal predecessors, (2315), 611 states have call successors, (611), 90 states have call predecessors, (611), 89 states have return successors, (610), 599 states have call predecessors, (610), 610 states have call successors, (610) [2023-11-06 22:29:48,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 3536 transitions. [2023-11-06 22:29:48,374 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 3536 transitions. Word has length 150 [2023-11-06 22:29:48,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:29:48,375 INFO L495 AbstractCegarLoop]: Abstraction has 2360 states and 3536 transitions. [2023-11-06 22:29:48,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-06 22:29:48,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 3536 transitions. [2023-11-06 22:29:48,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-06 22:29:48,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:29:48,391 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:29:48,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:29:48,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:29:48,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:48,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1170160484, now seen corresponding path program 1 times [2023-11-06 22:29:48,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:29:48,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904558333] [2023-11-06 22:29:48,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:48,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:29:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:29:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:29:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:29:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:29:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:29:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:29:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:29:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:29:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-06 22:29:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:48,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:29:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:29:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:49,016 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-06 22:29:49,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:29:49,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904558333] [2023-11-06 22:29:49,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904558333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:29:49,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:29:49,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:29:49,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293070488] [2023-11-06 22:29:49,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:29:49,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:29:49,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:29:49,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:29:49,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:29:49,022 INFO L87 Difference]: Start difference. First operand 2360 states and 3536 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-06 22:30:04,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:06,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:08,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:09,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:09,815 INFO L93 Difference]: Finished difference Result 7113 states and 10804 transitions. [2023-11-06 22:30:09,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:30:09,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 150 [2023-11-06 22:30:09,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:09,860 INFO L225 Difference]: With dead ends: 7113 [2023-11-06 22:30:09,860 INFO L226 Difference]: Without dead ends: 4779 [2023-11-06 22:30:09,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:30:09,878 INFO L413 NwaCegarLoop]: 2979 mSDtfsCounter, 5248 mSDsluCounter, 5276 mSDsCounter, 0 mSdLazyCounter, 5063 mSolverCounterSat, 2847 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5645 SdHoareTripleChecker+Valid, 8255 SdHoareTripleChecker+Invalid, 7912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2847 IncrementalHoareTripleChecker+Valid, 5063 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:09,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5645 Valid, 8255 Invalid, 7912 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2847 Valid, 5063 Invalid, 2 Unknown, 0 Unchecked, 19.9s Time] [2023-11-06 22:30:09,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4779 states. [2023-11-06 22:30:10,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4779 to 4093. [2023-11-06 22:30:10,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4093 states, 2884 states have (on average 1.3945908460471568) internal successors, (4022), 2994 states have internal predecessors, (4022), 1037 states have call successors, (1037), 172 states have call predecessors, (1037), 171 states have return successors, (1036), 1014 states have call predecessors, (1036), 1036 states have call successors, (1036) [2023-11-06 22:30:10,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4093 states to 4093 states and 6095 transitions. [2023-11-06 22:30:10,174 INFO L78 Accepts]: Start accepts. Automaton has 4093 states and 6095 transitions. Word has length 150 [2023-11-06 22:30:10,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:10,177 INFO L495 AbstractCegarLoop]: Abstraction has 4093 states and 6095 transitions. [2023-11-06 22:30:10,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-06 22:30:10,177 INFO L276 IsEmpty]: Start isEmpty. Operand 4093 states and 6095 transitions. [2023-11-06 22:30:10,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-06 22:30:10,185 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:10,185 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:30:10,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:30:10,185 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:30:10,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:10,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1548198741, now seen corresponding path program 1 times [2023-11-06 22:30:10,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:10,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961067583] [2023-11-06 22:30:10,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:10,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:30:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:30:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:30:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:30:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:30:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:30:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:30:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-06 22:30:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:30:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-06 22:30:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,746 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-06 22:30:10,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:10,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961067583] [2023-11-06 22:30:10,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961067583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:10,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:10,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:30:10,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30531159] [2023-11-06 22:30:10,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:10,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:30:10,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:10,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:30:10,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:30:10,750 INFO L87 Difference]: Start difference. First operand 4093 states and 6095 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 22:30:14,452 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 [] [2023-11-06 22:30:20,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:22,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:24,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:32,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:34,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:36,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:36,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:36,929 INFO L93 Difference]: Finished difference Result 12349 states and 18688 transitions. [2023-11-06 22:30:36,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:30:36,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 157 [2023-11-06 22:30:36,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:37,005 INFO L225 Difference]: With dead ends: 12349 [2023-11-06 22:30:37,006 INFO L226 Difference]: Without dead ends: 8296 [2023-11-06 22:30:37,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:30:37,035 INFO L413 NwaCegarLoop]: 2661 mSDtfsCounter, 5806 mSDsluCounter, 4913 mSDsCounter, 0 mSdLazyCounter, 4555 mSolverCounterSat, 3399 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6276 SdHoareTripleChecker+Valid, 7574 SdHoareTripleChecker+Invalid, 7960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3399 IncrementalHoareTripleChecker+Valid, 4555 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:37,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6276 Valid, 7574 Invalid, 7960 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3399 Valid, 4555 Invalid, 6 Unknown, 0 Unchecked, 25.4s Time] [2023-11-06 22:30:37,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8296 states. [2023-11-06 22:30:37,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8296 to 7155. [2023-11-06 22:30:37,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7155 states, 5026 states have (on average 1.3873855949064862) internal successors, (6973), 5222 states have internal predecessors, (6973), 1819 states have call successors, (1819), 306 states have call predecessors, (1819), 309 states have return successors, (1840), 1772 states have call predecessors, (1840), 1818 states have call successors, (1840) [2023-11-06 22:30:37,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7155 states to 7155 states and 10632 transitions. [2023-11-06 22:30:37,547 INFO L78 Accepts]: Start accepts. Automaton has 7155 states and 10632 transitions. Word has length 157 [2023-11-06 22:30:37,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:37,547 INFO L495 AbstractCegarLoop]: Abstraction has 7155 states and 10632 transitions. [2023-11-06 22:30:37,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 22:30:37,549 INFO L276 IsEmpty]: Start isEmpty. Operand 7155 states and 10632 transitions. [2023-11-06 22:30:37,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-06 22:30:37,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:37,554 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-06 22:30:37,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:30:37,554 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:30:37,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:37,555 INFO L85 PathProgramCache]: Analyzing trace with hash -913306570, now seen corresponding path program 1 times [2023-11-06 22:30:37,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:37,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112689447] [2023-11-06 22:30:37,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:37,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:37,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:30:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:37,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:37,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:30:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:37,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:37,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:37,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:30:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:37,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:37,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:37,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:30:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:30:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:30:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:30:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-06 22:30:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:30:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-06 22:30:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-06 22:30:38,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:38,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112689447] [2023-11-06 22:30:38,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112689447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:38,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:38,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:30:38,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417514301] [2023-11-06 22:30:38,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:38,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:30:38,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:38,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:30:38,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:30:38,170 INFO L87 Difference]: Start difference. First operand 7155 states and 10632 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 22:30:45,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:30:47,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:47,993 INFO L93 Difference]: Finished difference Result 8288 states and 12636 transitions. [2023-11-06 22:30:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:30:47,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 182 [2023-11-06 22:30:48,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:48,086 INFO L225 Difference]: With dead ends: 8288 [2023-11-06 22:30:48,086 INFO L226 Difference]: Without dead ends: 8285 [2023-11-06 22:30:48,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:30:48,095 INFO L413 NwaCegarLoop]: 2667 mSDtfsCounter, 2417 mSDsluCounter, 3912 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 2465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2509 SdHoareTripleChecker+Valid, 6579 SdHoareTripleChecker+Invalid, 5949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2465 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:48,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2509 Valid, 6579 Invalid, 5949 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2465 Valid, 3484 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-11-06 22:30:48,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8285 states. [2023-11-06 22:30:48,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8285 to 7159. [2023-11-06 22:30:48,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7159 states, 5030 states have (on average 1.3870775347912525) internal successors, (6977), 5226 states have internal predecessors, (6977), 1819 states have call successors, (1819), 306 states have call predecessors, (1819), 309 states have return successors, (1840), 1772 states have call predecessors, (1840), 1818 states have call successors, (1840) [2023-11-06 22:30:48,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7159 states to 7159 states and 10636 transitions. [2023-11-06 22:30:48,602 INFO L78 Accepts]: Start accepts. Automaton has 7159 states and 10636 transitions. Word has length 182 [2023-11-06 22:30:48,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:48,603 INFO L495 AbstractCegarLoop]: Abstraction has 7159 states and 10636 transitions. [2023-11-06 22:30:48,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 22:30:48,606 INFO L276 IsEmpty]: Start isEmpty. Operand 7159 states and 10636 transitions. [2023-11-06 22:30:48,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-06 22:30:48,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:48,612 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-06 22:30:48,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:30:48,613 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:30:48,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:48,613 INFO L85 PathProgramCache]: Analyzing trace with hash -2065974533, now seen corresponding path program 1 times [2023-11-06 22:30:48,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:48,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893646997] [2023-11-06 22:30:48,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:48,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:30:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:30:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:30:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:30:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:30:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:30:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:30:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-06 22:30:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:30:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-06 22:30:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:30:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:30:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:49,404 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-06 22:30:49,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:49,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893646997] [2023-11-06 22:30:49,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893646997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:49,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:49,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:30:49,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849608440] [2023-11-06 22:30:49,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:49,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:30:49,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:49,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:30:49,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:30:49,407 INFO L87 Difference]: Start difference. First operand 7159 states and 10636 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 22:31:00,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:02,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:31:02,977 INFO L93 Difference]: Finished difference Result 19898 states and 30304 transitions. [2023-11-06 22:31:02,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:31:02,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 184 [2023-11-06 22:31:02,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:31:03,081 INFO L225 Difference]: With dead ends: 19898 [2023-11-06 22:31:03,081 INFO L226 Difference]: Without dead ends: 12779 [2023-11-06 22:31:03,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:31:03,140 INFO L413 NwaCegarLoop]: 3149 mSDtfsCounter, 5753 mSDsluCounter, 5798 mSDsCounter, 0 mSdLazyCounter, 5031 mSolverCounterSat, 3607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6158 SdHoareTripleChecker+Valid, 8947 SdHoareTripleChecker+Invalid, 8638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3607 IncrementalHoareTripleChecker+Valid, 5031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:31:03,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6158 Valid, 8947 Invalid, 8638 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3607 Valid, 5031 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2023-11-06 22:31:03,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12779 states. [2023-11-06 22:31:03,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12779 to 11153. [2023-11-06 22:31:03,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11153 states, 7710 states have (on average 1.3731517509727627) internal successors, (10587), 8042 states have internal predecessors, (10587), 2881 states have call successors, (2881), 526 states have call predecessors, (2881), 561 states have return successors, (3164), 2798 states have call predecessors, (3164), 2880 states have call successors, (3164) [2023-11-06 22:31:04,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11153 states to 11153 states and 16632 transitions. [2023-11-06 22:31:04,163 INFO L78 Accepts]: Start accepts. Automaton has 11153 states and 16632 transitions. Word has length 184 [2023-11-06 22:31:04,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:31:04,164 INFO L495 AbstractCegarLoop]: Abstraction has 11153 states and 16632 transitions. [2023-11-06 22:31:04,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 22:31:04,164 INFO L276 IsEmpty]: Start isEmpty. Operand 11153 states and 16632 transitions. [2023-11-06 22:31:04,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-06 22:31:04,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:31:04,171 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:31:04,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:31:04,172 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:31:04,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:31:04,173 INFO L85 PathProgramCache]: Analyzing trace with hash 879557477, now seen corresponding path program 1 times [2023-11-06 22:31:04,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:31:04,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409259273] [2023-11-06 22:31:04,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:04,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:31:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:31:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:31:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:31:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:31:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:31:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:31:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:31:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-06 22:31:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:31:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-06 22:31:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-06 22:31:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-06 22:31:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-06 22:31:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:04,880 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-06 22:31:04,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:31:04,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409259273] [2023-11-06 22:31:04,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409259273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:31:04,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:31:04,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:31:04,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089383758] [2023-11-06 22:31:04,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:31:04,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:31:04,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:31:04,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:31:04,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:31:04,883 INFO L87 Difference]: Start difference. First operand 11153 states and 16632 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:31:16,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:18,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:20,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:33,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:35,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:37,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:37,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:31:37,390 INFO L93 Difference]: Finished difference Result 39873 states and 61458 transitions. [2023-11-06 22:31:37,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:31:37,391 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 194 [2023-11-06 22:31:37,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:31:37,619 INFO L225 Difference]: With dead ends: 39873 [2023-11-06 22:31:37,619 INFO L226 Difference]: Without dead ends: 28760 [2023-11-06 22:31:37,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2023-11-06 22:31:37,702 INFO L413 NwaCegarLoop]: 2995 mSDtfsCounter, 10115 mSDsluCounter, 10917 mSDsCounter, 0 mSdLazyCounter, 9539 mSolverCounterSat, 8332 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10775 SdHoareTripleChecker+Valid, 13912 SdHoareTripleChecker+Invalid, 17876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8332 IncrementalHoareTripleChecker+Valid, 9539 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:31:37,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10775 Valid, 13912 Invalid, 17876 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8332 Valid, 9539 Invalid, 5 Unknown, 0 Unchecked, 30.1s Time] [2023-11-06 22:31:37,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28760 states. [2023-11-06 22:31:39,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28760 to 25091. [2023-11-06 22:31:39,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25091 states, 17275 states have (on average 1.3724457308248914) internal successors, (23709), 18075 states have internal predecessors, (23709), 6677 states have call successors, (6677), 1051 states have call predecessors, (6677), 1138 states have return successors, (7618), 6456 states have call predecessors, (7618), 6676 states have call successors, (7618) [2023-11-06 22:31:40,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25091 states to 25091 states and 38004 transitions. [2023-11-06 22:31:40,297 INFO L78 Accepts]: Start accepts. Automaton has 25091 states and 38004 transitions. Word has length 194 [2023-11-06 22:31:40,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:31:40,298 INFO L495 AbstractCegarLoop]: Abstraction has 25091 states and 38004 transitions. [2023-11-06 22:31:40,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:31:40,299 INFO L276 IsEmpty]: Start isEmpty. Operand 25091 states and 38004 transitions. [2023-11-06 22:31:40,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-06 22:31:40,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:31:40,305 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:31:40,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:31:40,306 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:31:40,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:31:40,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1411688892, now seen corresponding path program 1 times [2023-11-06 22:31:40,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:31:40,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198368847] [2023-11-06 22:31:40,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:31:40,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:31:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:31:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:31:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:31:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:31:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:31:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:31:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:31:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:31:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-06 22:31:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:31:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:31:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:40,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-06 22:31:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:41,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-06 22:31:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:41,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-06 22:31:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:41,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-06 22:31:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:31:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-06 22:31:41,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:31:41,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198368847] [2023-11-06 22:31:41,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198368847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:31:41,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:31:41,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:31:41,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181870890] [2023-11-06 22:31:41,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:31:41,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:31:41,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:31:41,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:31:41,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:31:41,026 INFO L87 Difference]: Start difference. First operand 25091 states and 38004 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:31:55,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:57,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:31:59,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:32:15,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:32:17,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:32:19,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:32:21,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:32:21,404 INFO L93 Difference]: Finished difference Result 82555 states and 127882 transitions. [2023-11-06 22:32:21,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:32:21,405 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 193 [2023-11-06 22:32:21,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:32:22,060 INFO L225 Difference]: With dead ends: 82555 [2023-11-06 22:32:22,060 INFO L226 Difference]: Without dead ends: 57504 [2023-11-06 22:32:22,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2023-11-06 22:32:22,254 INFO L413 NwaCegarLoop]: 2988 mSDtfsCounter, 8625 mSDsluCounter, 13636 mSDsCounter, 0 mSdLazyCounter, 12496 mSolverCounterSat, 6465 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9276 SdHoareTripleChecker+Valid, 16624 SdHoareTripleChecker+Invalid, 18967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6465 IncrementalHoareTripleChecker+Valid, 12496 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:32:22,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9276 Valid, 16624 Invalid, 18967 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6465 Valid, 12496 Invalid, 6 Unknown, 0 Unchecked, 36.1s Time] [2023-11-06 22:32:22,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57504 states. [2023-11-06 22:32:26,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57504 to 50175. [2023-11-06 22:32:26,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50175 states, 34553 states have (on average 1.3719213961161114) internal successors, (47404), 36153 states have internal predecessors, (47404), 13341 states have call successors, (13341), 2105 states have call predecessors, (13341), 2280 states have return successors, (15364), 12900 states have call predecessors, (15364), 13340 states have call successors, (15364) [2023-11-06 22:32:27,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50175 states to 50175 states and 76109 transitions. [2023-11-06 22:32:27,356 INFO L78 Accepts]: Start accepts. Automaton has 50175 states and 76109 transitions. Word has length 193 [2023-11-06 22:32:27,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:32:27,360 INFO L495 AbstractCegarLoop]: Abstraction has 50175 states and 76109 transitions. [2023-11-06 22:32:27,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:32:27,360 INFO L276 IsEmpty]: Start isEmpty. Operand 50175 states and 76109 transitions. [2023-11-06 22:32:27,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-06 22:32:27,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:32:27,366 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:32:27,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:32:27,367 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:32:27,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:32:27,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1763969991, now seen corresponding path program 1 times [2023-11-06 22:32:27,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:32:27,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325759382] [2023-11-06 22:32:27,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:32:27,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:32:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:32:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:32:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 22:32:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:32:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:32:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:32:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:32:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:32:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:32:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:32:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:32:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-06 22:32:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-06 22:32:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:32:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:32:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-06 22:32:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 22:32:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-06 22:32:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-06 22:32:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:32:28,379 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-06 22:32:28,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:32:28,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325759382] [2023-11-06 22:32:28,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325759382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:32:28,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:32:28,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:32:28,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687587117] [2023-11-06 22:32:28,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:32:28,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:32:28,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:32:28,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:32:28,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:32:28,382 INFO L87 Difference]: Start difference. First operand 50175 states and 76109 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-06 22:32:45,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []